Athlon 64 Debuts 481
SpinnerBait writes "AMD launches their Athlon 64 and Athlon 64 FX chips today and there is
a full analysis with benchmarks up at HotHardware. Interestingly
enough, Intel pulled a fast one (literally) and released a new breed of Pentium
4 chips with 2MB of on board L3 cache, just in time to boost their performance
in the benchmarks for this launch. Regardless, the performance levels for
AMD's new flagship look very strong." Tom's has a story, or Tech Report, or see info straight from AMD.
Anandtech (Score:5, Informative)
AT and THG compared ! (Score:5, Funny)
Ha! good article my ass.
The anandtech article runs a measly 18 pages, while tom's runs 53. So it is clear that the THG article is 194% better than the anandtech one (see fig.1). What's more, in our second test, "pretty pictures on the first page of the article" the beleaguered news site falls even further behind. While THG has 4 pictures on the first page, including one of the athlon XP (oh shiny!) anandtech has none. This could be due to a browser incompatibility or a hyper-active web-filter but we couldn't be bothered to check. (see fig.2) As we can see, the THG article has !DIVISION_BY_ZERO! times the images of the anandech one, and so it must be much better.
[I am quite surprised that this post passes the lameness filter, considering the amount of ugly ASCII art. The fact that
Re:AT and THG compared ! (Score:3, Funny)
Re:AT and THG compared ! (Score:3, Funny)
Stupid comment by THG was Re:AT and THG compared ! (Score:5, Informative)
this page you will see the following stupid comment...
Two dumb things about this...
1. UT2003 is made by Epic
2. UT2003 was a premier product that AMD was showing off as a 64bit application running under SUSE linux on the Opteron when it was released.
Two big mistakes
"Fast one"? (Score:3, Insightful)
So Intel cheated by, uh, making better hardware?
Threat to Athlon64: Prescott (not Pentium 4) (Score:4, Insightful)
AMD created the 3DNow! extensions to the 80x86 instruction set architecture (ISA), also known as IA-32. They were a significant improvement over the original set of MMX extensions. However, later, Intel created the SSE (and SSE2) extensions. Guess what? AMD was forced to incorporate them into its future chips in addition to the 3DNow! extensions. Ignoring the SSE extensions would have cost AMD dearly in terms of marketshare. The fact of the matter is that Intel sets the global standard for the IA-32 ISA.
Now, AMD has created its own x86-64 extensions to the IA-32. You can be sure that Intel has created a different set of 64-bit extensions (which we shall call "INTEL-64") to the IA-32. After all, why would Intel support AMD in any way? Once Intel activates the INTEL-64 extensions in the upcoming Prescott, AMD will be forced to go back to the drawing board to incorporate the INTEL-64 into all future chips. The current Athlon64 will be like the K-5 -- interesting but without a future.
AMD will probably take an additional 2 years to produce an INTEL-64-compatiable chip. By that time, Intel would have locked 90% of the 64-bit desktop market with Prescott.
The worst news is for Sun. With Prescott, Intel has a 64 bit chip that will be significantly faster than the UltraSPARC III/IV. Right now, the Pentium 4 crushes the UltraSPARC III in performance. Please review the performance characteristics of the Pentium 4 at the SPEC web site [spec.org]. Since Prescott (successor to the Pentium 4) will be faster than its predecessor, Prescott will clean UltraSPARC's clock. Moreover, the number of applications that will run on Prescott -- the heir to the software empire of the x86 -- far exceeds the number of applications that run on UltraSPARC III/IV. On the key TPC-C benchmark, Prescott will clearly deliver outstanding performance, compared to the UltraSPARC III/IV.
In short, when Intel activates the INTEL-64 extensions in Prescott, Intel will force (1) AMD back to its usual state of borderline bankruptcy and (2) Sun into being a software company.
Re:Threat to Athlon64: Prescott (not Pentium 4) (Score:5, Insightful)
Remember that they are betting on the Itanium as their 64 bit processor. Enabling the 64 bit instructions on Prescott will almost instantly kill the Itanium and I doubt Intel wants to do that.
As for 64 bit Prescott killing Sun. I don't see any reason for that. It seems to be fashionable to predict the death of Sun these days, but they are not in that much problems. The Itanium already crushes UltraSparc for performance, but Sun is still doing fine. A 64 bit Prescott will not change that. The software base difference doesn't really matter here either as there is simply stuff that runs on UltraSparc but not on x86 systems. Also, a processor is not the only part of a computer. While UltraSparc's performance may be lagging at the moment, Sun's systems are very well designed and no x86 system can compete with their high end systems.
Hell, Sgi is in much more trouble than Sun and they still design their own processors (MIPS).
Re:Threat to Athlon64: Prescott (not Pentium 4) (Score:3, Insightful)
Actually, I would dissagree. Remmember way back (at the very least, I haven't encountered such a message in a while) when a program would say, "Requires a 386" and you would try it on a 286 and it would complain? Most of the time today, if you are trying to install a program and your computer does not meet the minimum requirements, you can usually squeek by and still ha
Re:Threat to Athlon64: Prescott (not Pentium 4) (Score:5, Insightful)
Threat to INTEL-64: Microsoft (not Athlon64) (Score:5, Insightful)
WXP for the Althon 64 is well on its way, as seen in the linked HotHardware review. Will Microsoft and the driver writing departments at hardware firms put up with a stealth announcement of another set of 64-bit extensions?
Re:Threat to Athlon64: Prescott (not Pentium 4) (Score:4, Interesting)
Check out the new info posted about sun's interconnect tech here [nytimes.com] (free reg, blah blah). With the new tech, processors and/or memory can be directly connected to each other.
I still wish my wife had let me buy AMD a couple months ago when it was in the 5's. They're losing money fast, but...since the stock is up 140% from its price in late June, I guess investors still have hopes for them...
Re:Threat to Athlon64: Prescott (not Pentium 4) (Score:5, Insightful)
I honestly don't care, because there's more to a computer than SPEC drivel. Quite honestly, I'm suprised you forgot to mention Itanic in your anti-Sun rant, because INTEL-64 will make the multi-billion dollar IA-64 go bye-bye. Have you ever seen several billion dollars seem as if it never existed? Intel may.
BTW, here are the actual competitors for your entertainment:
Itanic 2/Power4/UltraSPARC III
Opteron/PowerPC 970/UltraSPARC IIIi
Pentium 4/Athlon
You see, the people considering the first trio aren't necessarily even considering the second trio, because their needs are different. Fancy that, Mr. Troll.
Re:Threat to Athlon64: Prescott (not Pentium 4) (Score:3, Interesting)
Now that Opteron has Hypertransport -- a highly scalable big bandwidth point to point link protocol, what exactly is the advantage of the other RISC contenders in the high end enterprise space?
A nice instruction set? Sorry, that doesn't cut it anymore. The only thing holding ba
Re:"Fast one"? (Score:2, Interesting)
Re:"Fast one"? (Score:3, Insightful)
Yeah because the applications don't exist. Maybe in a couple years time, AMD's processor will be the better choice, but if there are no apps there to support 64bit, its power is wasted.
Intel's chip is the better choice for the user who wants performance in apps that actually exist today.
Re:"Fast one"? (Score:5, Insightful)
Based on what?
The Athlon64 outperforms the P4 in virtually every benchmark, often by a hefty margin.
Ignore the results from the P4EE chip -- you said you wanted something that actually exists today. The P4EE will not be available until sometime in November.
On top of that the AMD Athlon64 3200+ costs ~$465, while the P4 3.2 costs ~$620. So you get slightly more power for considerably less cash. The motherboards appear to be roughly the same price for a Socket 754 board and a 865PE-based board (or you can drop more money for a 875-based board and get virtually no performance improvement -- your choice).
All of that said, if you want to buy the best x86 chip right now and money's no object -- buy Intel. Not because it's faster (it isn't), but because it's probably going to be more stable. We're talking about a 1st generation CPU on 1st generation motherboards. Not a great prescription for stability there. If money is an issue, but you still have to have the fastest thing out there, then buy an AthlonXP -- the 3200+ is about the same price as the Athlon64, but the MB's are cheaper and more stable (just as stable as P4 chips/mobo's).
If you want to be a realist and get the best bang for your buck then stop looking at the fastest chips available and start looking at the best price point -- a P42.6C or AthlonXP 2800+.
Re:"Fast one"? (Score:3, Insightful)
Remember that Athlon64 motherboard will be *MUCH SIMPLER* than previous generation 32-bit x86 motherboards since there is no seperate Northbridge that you need wired up. So there are fewer connections, and the mobo can be significantly smaller. Furthermore the power utilization of A64 has been much improved over the Athlo
Re:"Fast one"? (Score:3, Insightful)
Right now AMD is using the exact same silicon for all three of these processors. This is good in tha they've already had quite some ti
Re:"Fast one"? (Score:3, Insightful)
Re:"Fast one"? (Score:3, Interesting)
Re:"Fast one"? (Score:3, Insightful)
Yes, but... (Score:4, Funny)
this is great but... (Score:3, Interesting)
although not intended to be a troll, its looking that way....
if the OS, AND the Apps run 64bit - i'll buy one...till then, i'll stick with my original thunderbird, 1.4ghz.
Re:this is great but... (Score:2, Insightful)
It's out. (Score:3, Informative)
Re:It's out. (Score:3, Informative)
Locate in Contents
Date Posted
9/18/2003 1:38:00 PM
File
srv03sp1_usa_1069_amd64fre_pro.iso, ISO-9660 CD Image
Size
419.32 MB
Minimum Estimated Download Times
T1 37 minutes
128 KB 7 hours, 38 minutes
64 KB 17 hours, 11 minutes
28.8 KB 38 hours, 12 minutes
Description
Product key: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
Instructions
An ISO-9660 image file is an exact representation of a CD, including the content and the logical format. The most common use of an imag
Re:this is great but... (Score:3, Insightful)
And the end user won't realize a big difference, and the bang-for-buck ratio won't be there either. But serious database apps, cad, and any other high-end market will most definitely benefit.
Re:this is great but... (Score:4, Insightful)
I'm not sure that you really understand the meaning of the word "Troll." Check here [slashdot.org] for a good definition of "Troll." The word came from "Trolling for n00bs," where people would purposely get something wrong in order to get all the new people to jump on them. A good troll is really quite amusing, and very difficult to pinpoint... such as this comment's parent's post, I would guess. ;-) Good trolls usually do not include Natalie Portman, Grits, or AYB. Those posts would generally be modded "Offtopic," which is a euphamism for "Useless."
What is interesting is that the grandparent thought they were posting a Troll by posting a valid thought held by many people. If there are no apps, then why would I buy the processor?
In answer to that question, I would propose the analogy: Would you wait until the flood hit to get sandbags? It's always good to have the sandbags on hand, they don't get in the way, nor do they cause you to live life in a different way. The Athlon64 is like that, a latent 64 bit platform that doesn't hurt to have, and even gives incredible performance gains in 32 bit apps.
Re:this is great but... (Score:3, Funny)
You're right, it's useless. Any advance in processor technology should be stopped at once, we can already mails after all.
Re:this is great but... (Score:4, Insightful)
Re:this is great but... (Score:3, Insightful)
Apparently you haven't checked any of the benchmarks out there yet, or you'd know that 64-bit apps aren't even _remotely_ necessary to get great performance out of 32-bit apps on the Athlon64 (or PPC970 aka G5). Despite being '64-bit' chips, they still run 32-bit apps noticeab
Re:this is great but... (Score:2, Interesting)
Re:this is great but... (Score:3, Funny)
I write apps, that people use to read email, and I write these apps on the J2EE platform. Have you ever tried writing a 3 to 4 tier'd app? all running on one development machine running NT? Including the Oracle server?
I write apps, that programmers use to write apps for people to read their email. You can bet I need all the horsepower I can get!.
I write Virtual Machines that code jokey's use to develop tools to confuse, er uh, emp
Re:this is great but... (Score:4, Interesting)
If you are waiting for everything to catch up, then there is currently little advantage to x86-64.
Most apps don't need this power, the ones that do will be rewritten as the need arises, everything else can still run in 32 bit mode.
Chicken and egg (Score:5, Insightful)
I think we can all see the wisdom of releasing the new processor before the new OS.
Re:this is great but... (Score:3, Insightful)
Barring that, what do I have that cries out for 64 bit arithmetic? Not much.
Also, try compiling the same app in 32-bit and 64-bit modes. The 64-bit app is a lot bigger and slower, since all the pointers doubled in size, so less code fits in cache, and I'm using more memory bandwidth.
The 16 to 32-bit conversion was forced, because it didn't take much of a problem to
You're forgetting the 8 new GPRs (Score:3, Informative)
Actually, this is only partly true. Because the new AMD64 instruction set includes 8 more general purpose registers, compilers now generate far less load/store code during periods of register contention. This alone ALMOST makes up for the extra byte per instruction that 64-bit instructions require.
Re:this is great but... (Score:3, Insightful)
Add -m64 to you march flags then emerge -e world
Re:this is great but...you're not reading the resu (Score:5, Insightful)
If you actually want the industry (and 64-bit computing as a whole) to move forward -- then go out and buy a chip...if nobody buys these because no OS/Software manufacturer writes 64-bit code, then there will be big trouble for little AMD. The idea was to build a chip that runs 32 and 64 bit code very quickly. What it sounds like you're saying is that you're waiting for Intel to release a 64-bit chip so that everyone optimizes their code for that. I, for one would rather back the company who was innovative and was first to market with a pretty cool product than the biggest guy on the block (er...industry...whatever).
From the benchmarks I've seen -- it does a pretty damn good job at both 32 and 64 bit code (especially for a first release without a good 64-bit clean codebase). It manages to beat the existing 3.2 Ghz P4 for cheaper.
I hear what you're saying about waiting on at least one level though -- I can't remember ever spending $400 on a CPU, but I'm confident that in 6 months, those things will be selling for quite a bit less than they are now...they'll be a good bargain.
Finally, I have a 1.4Ghz Thunderbird as my primary desktop. At this point, it should be called a 1.4Ghz Shitbird. I intend to replace it -- the only questions are: when, and replace with what? I know that if I decide to get an Athlon64-ish chip, I won't be making that decision based on whether or not there are 64-bit apps/OS'es for it. For what you pay, it works great...I'll make my decision based on price:performance ratio on what's available now...and from what I can see, it already shines against a much more mature platform.
Will wait (Score:2, Interesting)
Re:Will wait (Score:3, Interesting)
Mmm yesss (Score:3, Funny)
Indeed a fast one up on AMD (Score:3, Interesting)
Though I am a die hard AMD supporter, i have to admit Intel has really pulled one up on AMD this time. The 64bit 3200+ is just about 15-20% faster than the stock and barrel Intel 32bit 3.2 GHz. Bad news for AMD this is, considering the retail price of these babies is 450 & 800$ (Normal and FX).
And BTW windows released XP 64bit Beta1 today.Re:Indeed a fast one up on AMD (Score:5, Insightful)
Re:Indeed a fast one up on AMD (Score:3, Funny)
*shudder*
Don't speak like that again.
Re:Indeed a fast one up on AMD (Score:5, Insightful)
Yeah. I can't believe that you can get a brand new CPU that's 15-20% faster than the previous champion for only 25% less! Oh, and that's in 32-bit mode. If 64-bit computing takes hold then Intel is SOL at the moment - despite the rumors flying around about Prescott and 64-bit instructions.
Yeah, the Athlon64 3200+ is $465 [newegg.com] (note, look at the retail price w/ heatsink to be fair), but the P4 3.2GHz is $619 [newegg.com].
The Athlon64 FX-51 is certainly overpriced, given how miniscule the performance differences are, but that's hardly a surprise.
What Intel did pull wasn't a price/performance coup (because it isn't, by any means) but a paper launch debacle. Every single review I've seen thus far includes benchmarks for the P4 3.2EE -- which isn't available until November, and at prices similar to the Ath64-FX (based on preliminary 1000 CPU lot prices). The P4EE is competitive with the Ath64, but it's a smokescreen. You can buy an Athlon64 right now, but the P4EE is non-existant.
And BTW windows released XP 64bit Beta1 today.
Unfortunately it appears that there's a severe lack in available drivers. All the sites are having to use nVidia 5900FX's and even then can't bench any DX9 apps in Win64 due to no 64-bit DX9 being available.
Re:Indeed a fast one up on AMD (Score:3, Interesting)
Take a minute and look at the platform that the applications were compiled for. Only the OS was compiled for the 64 Bit chips, and even that was a pre-beta. Most modern apps released allow for updates that include specifically compiled code (ala Windows, as much as I hate to say it). Once this is taken advantage of, then you can be sure that you have a larger performance delta.
The other thing that comes to mind is that these chips are brand new, and are not running at the speed for which they were plann
False Advertising? (Score:2)
Did someone forget to remind their marketing department that PC means "Personal Computer" and not necessarily x86?
Re:False Advertising? (Score:2)
Benchmarks (Score:5, Informative)
AMDzone [amdzone.com]
AnandTech [anandtech.com]
XbitLabs [xbitlabs.com]
Ace Hardware [aceshardware.com]
There are even more at AMDZones [amdzone.com] main page.
Re:Benchmarks (Score:2)
I'm sure AMDZone is never biased towards AMD processors.
Paper launch? (Score:3, Interesting)
First, we still don't have a mass market consumer OS for native x86-64, and even when Windows XP for x86-64 does come out (the word from the betas is that it's very very good and solid), we still need to wait for x86-64 compatible drivers to be developed and released by the various manufacturers, and it would be no small feat to even have a small core sampling of drivers available by say, summer 2004. Personally, I'm hoping that Nforce3 and ATI Catalyst drivers will be ready very early on.
Mad props to AMD, but they're not out of the woods yet on this release.
Doesn't look like it. (Score:2, Informative)
There's a limitied supply, but they're available. Here's one: Athlon64 3200+ [datorbutiken.com] bundled with a MSI K8T Neo-FIS2R, in stock and available, for "only" 6600SEK (~$835 /w tax)
I'm salivating, but the limited supply is going to keep the price way, way up for a time.
Re:Paper launch? (Score:2, Informative)
AMD! Don't cater to the evil Redmond mole-men!
Re:Paper launch? (Score:3, Informative)
Re:Paper launch? (Score:3, Insightful)
Re:Paper launch? (Score:3, Informative)
Why don't you go go buy one from here [mwave.com] or here [newegg.com] and let us know?
First, we still don't have a mass market consumer OS for native x86-64
Very true. And some of us just don't care. I wanted benchmarks for GCC and OpenSSL and Postgres, and all they showed was 32-bit Windows apps, which nobody but nobody cares about. Well, life is tough, I guess.
Wow! (Score:2, Insightful)
Oh wait it's been done [apple.com]!
But seriously, there are a number of reasons why this is a great chip.
Namely, if Intel actually thinks putting a cache that's too big on a chip is actually going to help, good luck.
A Toast to AMD for once again making the superior product.
Too big? (Score:3, Insightful)
The cache is the main reason the G5 Dual 2.0 isn't that much better than a G4 Dual 1.42. If the G5 had 2MB Cache as the G4's do it would perform even better (L2 would be significantly better than L3 as well, but costs increase significantly).
Next time you're trying to run some 3D modeling or any other intensive CPU based software, just realize the cache is significant.
Oh no! (Score:3, Funny)
Spread arund the /.ing. (Score:2, Informative)
Tom's hardware [tomshardware.com]
Ace's Hardware [aceshardware.com]
As you would expect, no chip is dominate. though the more interesting thing for me than the nip and tuck between $800 CPUs, is the Athlon64 3200+ performs right there with the 3.2C in mosts lets. Not bad considering it retails for more than $100 less.
Athlon 64 (Score:2)
A happy coincidence (Score:5, Informative)
1) Application Programming
2) Ssytems Programming
3) General Purpose and System Instructions
4) 128-Bit Media Instructions
5) 64-Bit Media and x87 Floating-Point Instructions
Get them here [amd.com].
Then go make your favorite compiler [gnu.org] or windowing system [xfree86.org] work better on this.
What they didn't test... (Score:2)
It would be nice to see something that could be well controlled (all non-proc specific compile flags equal) to do the testing.
Besides, no one runs this Windows XP rubbish right, where can I see an article testing real systems?
What's up with AMD's model names lately? (Score:5, Interesting)
We now see Athlon FX get released when the GeForce FX graphics card series is the state-of-the-art among hardcore gamers, along with ATI's Radeon series. Hardcore gamers are also coincidentally a target group for AMD's processors since they're known to look for the latest and greatest processor-wise.
I wonder if this is just coincidental, or if AMD is actually using the popularity of other brands to market their own? Are they even using dirty tacticts to try to fool people into thinking "Ooh, this Athlon XP should work especially well together with this newly released Windows XP then, right?" and "Oooh, great, I must have the Athlon FX for my latest video card!"
But perhaps they just happen to choose the same abbreviation as other popular brands at the time for the second time in a row. However, I still can't say AMD's Athlon marketing smell good to me at least.
Re:What's up with AMD's model names lately? (Score:3, Funny)
Right?
Re:What's up with AMD's model names lately? (Score:2)
Anyway, my point wasn't that the Athlon FX doesn't use the infamous Processor Rating, but how AMD seemingly tie their model names to currently popular brands from other manufacturers, riding their wave of success.
Re:What's up with AMD's model names lately? (Score:5, Insightful)
It's not like any of this _really_ concerns me, mind, as I'm now saving up for a G5. It's time to 'Switch'!
I'd say with CPU prices like that AMD & Intel are now charging, the whole 'PCs are cheaper than Macs' theory is gonna get a lot less credence.
I'm _really_ interested in seeing some real & comprehensive benchmarks between all the processors, now that they're all out. G5 vs P4 vs P4EE vs Xeon vs Athlon 64/FX.
Re:What's up with AMD's model names lately? (Score:3, Insightful)
i
-
Come on now (Score:5, Interesting)
"At the same time, Apple laid claim that with the G5 model, it would offer the world's most powerful desktop system. Apparently there are users who will believe these kinds of claims. Whatever - at least the G5 also has 64-bit support with regard to the software. Nevertheless, there is still no final operating system available for it."
FUD, lack of evidence, and outright lies - they call this journalism? They dismiss the Apple's claims about the G5's performance without a) including it in their later benchmark or b) citing any references. Why am I suppose to believe someone who is trying to put down a group of users like they are petulent 2 year olds. Also, what is the crack about not having a "final operating system" out yet? 10.2.7 is a fine OS for the G5. If he means that there is no 64-bit OS, why not just come out and say it?
Pfff. I can't believe I took time away from constantly reloading my Fedex tracking page to read that drivel.
PS - FEDEX, BRING ME MY DAMN G5 ALREADY!!
Re:Come on now (Score:5, Insightful)
Because sane, savvy people in the technology industry should know better.
We have had 64bit AMD systems running here before the Apple G5 announcement, additionally, we have had Itanium with Windows XP 64 edition running here for over a year.
Considering we ACTUALLY have these 'shipping' systems already in our office and labs for quite some time, do we need a reference from the article's author to know that Apple was lying out their ass?
Where in the hell have you been?
Apple was NOT the first 64bit desktop PC, their performance numbers were 'admittedly' pulled from a comparison of slower 32bit Xeon CPUs, and only showed the specific few tests that the G5 actually outperformed even the older Xeon chips.
And the last nail in this Apple shenanigan is that Mac OSX (even the new release for the G5s) is NOT a 64bit OS, and has no plans to be a 64bit OS in the near future.
I don't dislike Apple or their products, but their marketing department needs to be whacked up side the head. Instead of billing the G5 for what it IS and its TRUE good points, they go out on this hyperbole that is false and make a fool of themselves.
I'm sorry you and other people buy into it. If you are so worried about facts and citing references, why haven't you checked the facts that Apple has been purporting? You would have found they are false which is what the rest of the industry already knew.
Re:Come on now (Score:5, Insightful)
As for benchmarks, it's silly to omit the G5s from the comparison for religious reasons, and people want to see how they stack up. The only way to counter Apple's marketing drivel is to do actual real-world benchmarking using cross platform apps and benches. The 'slow' Xeon chips Apple compared the G5 to were the fastest available at the time from Intel. I don't know why they didn't compare themselves to the Opterons, but them's the breaks. What we need now is for all these PC tech sites to get some dual G5s and compare them to what they think is the top of the line on the x86 platform. FUD and hostility will only make people see these sources as biased and unprofessional. Objective comparisons between G5s, Athlon64 FX and P4 EE will drive lots of page hits, since people are starved for this info right now (due in part to Apple's excessive marketing claims). So, either put up or shut up, and be happy that Apple's marketing claims drove so much interest in G5 comparisons w/ x86 offerings.
Implementation or spec? (Score:3, Interesting)
If you implement x86 with PAE then you get 8gb.
It's only 4gb if you exclude dirty hacks - but if you did that then you would have to rule out x86 in it's entirety.
Re:Implementation or spec? (Score:3, Informative)
You also get horrible performance and require different compile flags for the application.
Compile something for x86-64 and you get 48-bit addressing out of the box with no performance hits and no special flags.
Re:Implementation or spec? (Score:3, Informative)
the benchmark I want to see (Score:5, Interesting)
A benchmark of Linux on the following systems:
GCC Settings for each system should be optimized for the best possible stable performance. I'm so sick of seeing 32 bit windows benchmarks for testing 64bit processors.
Re:the benchmark I want to see (Score:2)
Competition (Score:2, Interesting)
I love the fact that AMD is competing, this bodes well for all computer users. A technology war will definitely keep prices down. In the same sense, I am hoping that Intel comes out with a "decent" 64 bit chip. Not that I am fond of Intel,
Another interesting read from Tom's Hardware (Score:3, Interesting)
Tom's hardware has got another article, called The Intel v. AMD Performance War: You Lose [tomshardware.com], about the more cynical, money-making sides of the launch. Perhaps it's a bit conspiratory, but certainly worth a read, as it raises many valid points.
The biggest benefit... (Score:5, Insightful)
Reviews of Mobo and Chipsets (Score:5, Informative)
Looking for a Linux/Windows/Mac admin/support tech monkey in the Los Angeles area? Please see my resume [hotjobs.com].
available at newegg (Score:3, Informative)
here [newegg.com]
tiger has a system for sale now (Score:3, Informative)
it looks pretty interesting and it's pretty reasonably for what it is at $1650 including a dvd burner;
AMD Athlon(TM) 64 3200+ PC Processor
3 IEEE 1394 Firewire Ports
512 MB DDR 333 main memory (2 GB Max)
10/100 NIC Port
160 GB Ultra ATA/100 Hard Drive
128 MB 8X AGP ATI Radeon 900 SE Video Card
17" Monitor (1280 x 1024 Res.)
1-Year Limited 24Hr/365 Day Tech Support click here to upgrade the monitor
30-Day Money-Back Guarantee Details
56K Max v.92 Send/Receive Fax Modem
DVD-RW with Ulead VideoStudio 6
DVD Bonus Software: DVD X Copy Xpress
Microsoft Windows XP Home Edition
4 USB 2.0 Ports
I want to see 64bit software compared (Score:5, Insightful)
I read several of the reviews, and all stuck with 32 bit code for the comparition between the Intel P4 and the AMD Athalon 64. Linux runs on the Atahlon in 64 bit mode, wouldn't be hard to compile PovRay and Doom on a 64 bit compiler and see if anything changes. Thats just for an easy test.
Many real world (science?) applications benifit from 64 bit processors, find some (presumably running on UltraSparc, PPC, Alpha, or such) and port them over to see how the 64bit abilities of this chip compares to the other existing chips.
I run open source OSes, and open Source applications. I don't care about 32 bit performance because I'm fairly sure that if I did have an Athalon 64 I wouldn't run 32 bit code very often. I can choose between many chips, compatable instruction sets to me means gcc (or other compiler) has an output for them. 32 bit x86 compatiabily is nice for the few times I have to run something 32 bit (normally in Wine) and that doesn't happen very often.
Athlon 64 Laptop (Score:5, Interesting)
Re:Athlon 64 Laptop (Score:3, Informative)
From The Inquirer [theinquirer.net]:
"First, off AMD has a mobile Athlon 64 reference design which includes 256MB of PC 2000 memory, the K8T400 chipset, and an ATI M9 graphics card. The mobile chip will be launched in September."
Costco sells it. (Score:3, Interesting)
Great for GC and dynamically typed languages (Score:5, Interesting)
In a DT language , you need some way to 'mark' information to say wether it is a number, a pointer, etc. The usual technique is to mark the bit field with a 1 or 2 bit tag at the end.
Also, for garbage collection (ie Mark-And-Sweep) you need to be able to 'mark' the object that needs to stay alive so they are not reclaimed by the gc.
That being said, taking 2 or 3 bits on a 32 bit field is a lot, but it is very interesting to realize that that cost go away on a 64 bit machine.
So, 64 bits = more memory (larger address space) but it also means some techniques becomes much more viable in terms of feasability of implementation, which is a very exciting (for some loose definition of exciting) prospect!
Apple's marketing response? (Score:5, Interesting)
It is true that the G5 was the first 64bit desktop computer processor. Now there is a second. Apple should show some G5 vs. Athlon 64 benchmarks, which should be a much more competitive comparison price-performance wise than one dealing with G5's and Xeons. And much more realistic, with both catering to (roughly) the same market.
Re:Linux (Score:2)
NetBSD has been up and running on x86-64 emulators for quite a while now.
Re:Linux (Score:2)
Re:Linux (Score:4, Informative)
XP 64bit Edition has been out for a couple of years now for the Itanium processors. Just waking up or just not into the 'computer' thing?
For the AMD (64bit extended) processors, SP1 beta, which includes the AMD 64bit version is already out in most tech labs.
We are running it here even and it is even available to MSDN subscribers.
Considering we haven't even posted a bug for it yet, I would say, that not only is it working well, it will hit the release schedule later this year.
Re:What about supporting hardware? (Score:5, Funny)
Have they even created one yet?
Actually, no.
If you take a closer look at the pictures in the article, you will see that they've attached a wire to each and every pin of the processor. It's all a loose mess of wires and duct tape. If you want an Athlon 64, you'll probably have to do the same yourself, because there aren't scheduled any motherboards for it before sometime after christmas.
Re:What about supporting hardware? (Score:5, Informative)
This [yahoo.com] sure looks like a motherboard that supports the Athlon64, shipping same business day.
Re:What about supporting hardware? (Score:2)
So, in the begining most people will use 32-bit Windows or Linux on Athlons 64. Wait for Sladhtot posts like "How to run Doom III with 64-bit Linux".
Re:What about supporting hardware? (Score:3, Informative)
*shakes head*
Re:competition always good (Score:2)
Where does, "you insensitive clod" come from anyway, I always see people suggesting it as a new poll choice, but I can't remember once when it was actually a poll choice.
Re:are all the reviews by idiots? (Score:4, Informative)
32 bit = 4294967296 possibilities.
64 bit = 18446744073709551616 possibilities.
Your simplification of 64-bit processing is quite astounding. If your simple logic was indeed correct I'm sure Intel, Motorola, AMD, would be creating 128,256,512-bit systems by now and we would be living in a grand age of no disease, no war, and no death...
In fact the arguement for 64-bit processing is much more complicated. Simply put, 64-bit processing allows you to do two main things:
1. Move more data in one clock cycle
2. Perform more complicated instructions in one clock cycle
The first of which is widely accepted to be a good thing and the second is not so widely accepted (due to heretics like Hennessy...jk).
Re:are all the reviews by idiots? (Score:5, Informative)
Fortunately, you're not one of those.
64-bit computing is not a clear win in and of iteself. If you're merely doing 32-bit calculations then odds are a true 64-bit CPU will be slower, because to do the same work you have to move twice as much data to do it -- you have to fetch a 64-bit operation instead of a 32-bit one, and ditto for data. Presuming that the actual operation takes the exact same amount of time per bit then your 64-bit CPU would be half the speed of the 32-bit CPU because it has to do twice as much work for the exact same result.
Of course, that's the simplistic case and ignores the actual case at hand. AMD's x86-64 is not a pure 64-bit CPU because it doesn't need to be. The x86 ISA is ungodly ugly (which is why nobody implements it anymore -- it may look like x86 ISA on the surface, but there isn't a modern CPU that actually implements the x86 ISA in the CPU core) and x86-64 operators are only ~10-15% longer than traditional x86 operators on average. So your operator length didn't double, and you don't need to double your instruction or combined cache just to maintain parity with old CPUs. Additionally, the current x86-64 spec only implements 48-bit addressing, which should be more than adequate for about a decade or so, so address fetches only increase in size by 50%, not 100%. Still an increase, but one that's fairly acceptable and it's a vast improvement for anytime you have to address anything >4GB in size (which is increasinly common, particularly for databases). On top of that, x86-64 adds 4 general purpose registers, which doubles or more the numper of GPRs available (the "or more" bit depends on the operation you're performing, since some of the GPR's in x86 aren't entirely GP). Yes, all modern systems have register renaming. Doesn't help much when you still only have a handful of registers available to a single process and it has to deal with only those -- the assembly code cannot know about the virtual registers, otherwise they wouldn't be virtual!
As far as the data goes, you don't have to perform 64-bit operations on all the data, nor does all of the data have to be 64-bits wide. Clearly how much impact this has will vary from program to program, but unless you're doing a bunch of operations on long long's (64-bit integers) then you probably won't see much performance difference in raw computing speed. In fact, because of the slightly larger operator size and the increased address size you're more likely to see a performance decrease, albeit a slight one.