Intel Launches Power-Efficient Penryn Processors 172
Bergkamp10 writes "Over the weekend Intel launched its long-awaited new 'Penryn' line of power-efficient microprocessors, designed to deliver better graphics and application performance as well as virtualization capabilities.
The processors are the first to use high-k metal-gate transistors, which makes them faster and less leaky compared with earlier processors that have silicon gates. The processor is lead free and by next year Intel is planning to produce chips that are halogen free, making them more environmentally friendly.
Penryn processors jump to higher clock rates and feature cache and design improvements that boost the processors' performance compared with earlier 65-nm processors, which should attract the interest of business workstation users and gamers looking for improved system and media performance."
revolutionary? no, but still noteworthy (Score:3, Informative)
At the Intel Developer Forum in San Francisco in September Intel showed, and said it would be a better yield per watt and better system performance through its Quick Path Interconnect system architecture. Nehalem chips will also provide a memory controller integrated and improved communication between system components.
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I was about to buy one, but, if this is coming up soon, I may wait...
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Names of Rivers? (Score:4, Interesting)
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Are they moving Israel to Washington state or relocating Washington state to Israel?
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Re:revolutionary? no, but still noteworthy (Score:4, Informative)
revolutionary? yes (Score:2)
Re:revolutionary? no, but still noteworthy (Score:5, Insightful)
If this is how it ends for AMD, this is how it goes. I'll be sad, and may buy AMD anyway for some other reason (even if it's just stubborn fangirlism) but I respect Intel's design team. Their ethics, no, but their design is top notch this time around.
Re:revolutionary? no, but still noteworthy (Score:5, Insightful)
Even if you are getting a worse deal in the short run, an upgrade cycle or two in the future may be much worse (comparatively) if everyone goes Intel.
Re:revolutionary? no, but still noteworthy (Score:5, Informative)
Re:revolutionary? no, but still noteworthy (Score:4, Interesting)
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Intel is still tempting but AMD isn't outclassed performance/price wise.
That being said my AMD 2600+ is still going strong, I tend to buy when performance has increased 3-4x, processors don't seem to be doing that, lower power consumption is nice but I'd prefer 3ghz quad cores, which should be possible with this latest design shrin
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If you count dual-core, we're at the 4x point. The Athlon64 X2 5200+ (or the slightly less expensive 4800 or 4600) will be about as twice as fast as your current CPU when using one core, or 4x faster when using both
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You should probably check the prices again with an eye towards price/"good enough" ratios. AMD has been cheaper for a long time.
For daily web browsing, I'm perfectly happy running Ubuntu or XP on an underclocked Sempron from two years ago. Actually, I am so rarely waiting for the computer to do anything that I could probably underclock it further and make it even quieter.
Even f
Re:revolutionary? no, but still noteworthy (Score:5, Informative)
This chart shows that in terms of Price/Performance for the average user, Intel has only two CPU's that can compete with AMD's leading X2 (non-FX) processor (the 6000+, which is the highest AMD they have benchmarked). The first is the E2160, and the second is the P4E 613.
The field is LARGELY domainated (at the best scores that is) by AMD... Intel has 5 in the top 20, 1 in the top 10, and 0 in the top 5. AMD, conversely, has 2 x2's in the top 5...
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That is, if the X2 6000+ performs like E6700, then buying anything that is faster than E6700 means paying for performance otherwise money down the drain.
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If some manufacturer could sell a 1GHz CPU for $5, it would blow away everything else on that price/performance chart but would not run most modern applications.
What applications, except games, are you talking about that wouldn't run on a 1GHz system, especially if it's with a modern CPU-architecture?
I can run most modern applications on an old 450MHz P2 system with 1.5GB memory and a TNT2 gfx card.
The only pieces of modern applications that simply do not work are most modern games and playing high resolution videos.
Some of the more CPU-hungry applications in other areas work but are a bit slow to work with.
Most applications released during 2006/2007 run just fine
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AMD Cannot Compete Unless... (Score:2, Insightful)
AMD is fighting a losing battle. Intel defined the current market and AMD cannot beat them at their own game. They are condemned to always play second fiddle unless they can find a way to redefine the market. They can only do so by reassessing the current state of the art in multicore CPU architecture and computer programming and correct what is wrong with it. And there is a lot that is wrong with it. I call it The Age of Crappy Concurrency [blogspot.com]. Check it out.
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From what I remember, only 'extreme' and server models of the architecture will have integrated controllers.
From what I've heard this is true for 2008 at least. I'm sure the technology will take over on more consumer level intel processors in 2009.
Still sticking (Score:2, Interesting)
We're still running PowerPC here because they're low-power and do cert
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Hydrogen power is best when it doesn't suffer the 40% losses of combustion, i.e. when it goes through a fuel cell and is converted to electricity with 85% efficiency.
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Re:Still sticking (Score:5, Informative)
It was, when the Pentium Pro was introduced circa 1997. The instruction set the programmer "sees" is not the instruction set that the chip actually runs.
CISC to RISC runtime translation (Score:4, Interesting)
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AMD-64 for evah! (or at least, the next decade). Oh, that's also spelled "Core 2"...
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However, x86-64 is a superset of IA32 and suggests similar design considerations regarding instruction decoding and so on.
...more of a myth (Score:2)
The thing about calling P6 a RISC CPU was that it was a marketing win back in '95 when RISC was all the rage.
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"In the late 1970s researchers at IBM (and similar projects elsewhere) demonstrated that the majority of these "orthogonal" addressing modes were ignored by most programs. This was a side effect of the increasing use of compilers to generate the programs, as opposed to writing them in assembly language."
If you think RISC is for CPU designers and not compiler users/writers, you've got serious revisionist history issues that I'm not going to touch.
Gee, they threw out stuff that compilers weren't using in the first place.
That benefits compiler writers and/or other software writers precisely how?
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x86 already has elements of RISC & PowerPC is (Score:5, Insightful)
As for PowerPC Macs, I doubt it. The switch to Intel is what made most new Mac users switch because there was no longer a risk of not being able to run the one Windoze program they might need. If Mac ever went to a non-mainstream CPU again it would be a big big mistake.
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This is a bit like saying that a truck with a rocket plane inside has 'many of the features of a rocket plane.' The point of RISC is to manage the complexity of the processor, minimise the amount of unnecessary work, and shift load onto software wherever that has zero or negative performance impact. By, effectively, adding an on-the-fly compiler in hardware, the Intel engineers have not done this, even if they have streamlined the back-end execution engine using tricks published in the RISC literature.
But
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I know we're both just putting different spins on the same facts, but in the end, practical considerations outweigh engineering pu
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I don't disagree, but I think "the situation" is common in design and engineering of all kinds. The flexible nature of IT may result in more and faster-growing cruft, but continuity in the face of technological change (which is where cruft comes from) is important for any business endeavor. Backwards compatibility always trumps everything, despite the cruft it creates, whether you're talking about CPU architectures, internet protocols, user interface paradigms, keyboa
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Certainly the situation is much subtler than that. If time to market were the overriding concern, then complex systems like x86, C++, Windows and the Web would not be in use, since their excessive complexity makes them expensive both to develop and to develop for. Instead, I suspect that their complexity and long effort-to-market is part of the barrier to entry for newer, more sophisticated, better engineered and simpler systems; only the great behemoth developers have the resources to get to the market in
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Re:Still sticking (Score:5, Informative)
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RISC vs. CISC (Score:5, Informative)
These days:
One of the real problems with x86-32 was the low number of registers, which resulted in many stack spills. x86-64 added 8 more general purpose registers, and the situation is much better (that's why most people see a 10-20% speedup when migrating to x86-64 - more registers). Sure, it'd be better if we had 32 registers ... but again, with 16 registers life is decent.
Re:RISC vs. CISC (Score:4, Interesting)
Re:RISC vs. CISC (Score:5, Interesting)
The argument that the compiler can do a reasonable job at scheduling instructions ... well, is simply false. Reason #1: The problem is that most applications have rather small basic blocks (spec 2000 integer, for instance, has basic blocks in the 6-10 instruction range). You can do slightly better with hyperblocks, but for that you need rather heavy profiling to figure out which paths are frequently taken. Reason #2: compiler operates on static instructions, the dynamic scheduler - on the dynamic stream. The compiler can't differentiate between instances of the instructions that hit in the cache (with a latency of 3-4 cycles) and those that miss all the way to memory (200+ cycles). The dynamic scheduler can. Why do you think that Itanium has such large caches? Because it doesn't have out-of-order execution, it is slowed down by cache misses to a much larger extent than the out-of-order processors.
I agree that there are always ways to statically improve the code to behave better on in-order machines (hoist loads and make them speculative, add prefetches, etc), but for the vast majority of applications none are as robust as out-of-order execution.
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OTOH most non x86 architectures are used in environments where it is feasible to compile for the specific chip.
to win in the PC market chips must be able to perform reasonablly well on code compil
POWER6 is now In-Order (Score:3, Interesting)
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Why? Once upon a time, the x86 ISA had too few registers. Today, that problem has vanished (simply by throwing more GP registers at the problem) - And even then, so few people actually see the problem (and I say that as one of the increasingly rare guys who still codes in ASM on occasion) as to make it a non-issue, more a matter of trivia than actual import.
The Power/PowerPC architecture was good
I know I risk a holy-war here
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It's not really true (Score:3, Informative)
1. At one point in time there was a substantial difference between RISC and CISC architectures. CPUs had tiny budgets of transistors (almost homeopathic, by today's standards), and there was a real design decision where you put those transistors. You could have more registers (RISC) or a more complex decoder (CISC), but not both. (And that already gives you an idea about the kinds of transistor budgets I'm talking about, if having 16 or 32 registers instead of 1 to 8 actually
Halogen free (Score:3, Informative)
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Halogens are elements. Halogenated organic compounds are compounds that contain halogens. In order to eliminate halogens from the chip, they'll have to eliminate all compounds of halogens. I'd have thought that was fairly obvious...?
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1, I think the GP means organic halogenated flame retardant in the epoxy and PCB used to package the chip.
2, I am not sure about Intel, but I know many fabs have stopped HF wet etching and use dry etching instead. Because dry etching is actually cheaper and faster.
Can somebody explain (Score:3, Informative)
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Or to make chips more complicated (by using more gates in the same space)---do more with 1 clock cycle.
Or some combination of both.
Also, smaller usually means more energy efficient.
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Smaller might not mean less resistance, unless the lines get shorter faster than they get narrower.
Re:Can somebody explain (Score:5, Informative)
Smaller logic sizes can operate faster because the physical gate area of the transistor is that much smaller, so there's less capacitance loading down the piece of logic before it (proportional to the square of the scaling, of course). However, it also tends to be the case that the operating voltages scale down too (because they adjust the semiconductor doping and the gate oxide thickness to match), so you get an even better effect on energy required. Thus, scaling helps both with speed and operating power.
The problem they're running into now is that at these smaller sizes, the off-state leakage currents are getting to be of the same magnitude as the actual switching (operating logic) currents! This happens because of the reduced threshold voltage when they scale down, so the transistor isn't as "off" as it used to be.
That's why Intel has to work extra hard to get the power consumption down as the sizes scale down.
--
NerdKits: electronics kits for the digital generation. [nerdkits.com]
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Of course, the new high-K dielectrics may shift the curve as they give even more capacitance per unit area for a given thickness while possibly allowing higher voltage.
And, all of the modern dynamic VDD-scaling fe
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Re:Can somebody explain (Score:5, Informative)
Re:Can somebody explain (Score:4, Interesting)
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Does making it smaller make it inherently faster
Generally, yes, mostly because the capacitance and inductance of electrical components usually scales with size. The logic speed is often limited things like R*C time constants. At high enough speeds, speed of signal transmission accross the chip comes into play as well.
Another factor is with smaller parts, more can be packed onto a die. The more parts you have, the more caching and concurrency tricks you can implement to increase speed.
more efficient?
Up to a point, but they seem to have hit a wall. Smaller induc
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It depends. As many people explained to you, the smaller gate opens/closes faster. But thinner interconnect has higher resistance and closer interconnect has higher capacitance. At current gate size, the speed of CPU is dominated by RC delay [wikipedia.org]. So copper has been used to lower the resistance and low K [wikipedia.org] materials has been used to lower the capacitance. Also, as the gate becomes smaller, the leakage become bigger due to tunneling effect, which makes the efficiency low, so high K [wikipedia.org] materials has been used to i
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Note: *can* because it rath
WTF? (Score:2)
Energy efficiency with next-GPUs? (Score:2)
Power efficient??? (Score:2)
Call me a pessimist, but my two main systems peak at less than that at the wall, and I have yet to find them too slow for any given task (though I admittedly don't do much "twitch" gaming).
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Standard Xeon 5300 rate at 80W too, X53xx at 120W. The L53xx Clovertown: 50W. Dual Core Xeon 5138 and 5148: 35W and 40W.
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You're using a very apples-to-oranges comparison. Hey, I think it is great that the VIA solution works for you (I use it at home for a server as well), but that system is very, very underpowered. For reference the C7 in your system scores about 1,700 Dhrystones and about 300 Whetstones. Last year's Core 2 Duo scored 31,06
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As I've said to others, see my first reply in this thread. I refer to a modern dual-core >2GHz AMD machine, with a reasonably modern GPU and all the toys you'd expect if you went out and bought a new desktop PC today.
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Provide an email address and I'll send you a picture of a Kill-A-Watt reading in the high-50W range with the CPU pegged (and in the low 40s idle). I respect your pessimism, but really do run two such systems; One even has something vaguely resembling a decent GPU, though no doubt the hardcore gamers would sneer heartily at it (not that I care, as I said, as I mostly prefer RPG and RTS over F
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Sure. Start with a VIA Epia LN10000EG (I personally use LogicSupply for my mini-ITX shopping, they haven't screwed me yet). Toss in a gig of DDR2 533 RAM. Get the lowest wattage SeaSonic PSU you can find (or other known quality unit - You will regret saving $30 here).
Get any ol' $20 ATX case with four (or more) external 5.25 bays. You obviously don't need one with a PSU, but you'll find that it costs less to get one with power and toss the stock unit.
Get a ThermalTake A2309
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Well, for starters, obviously go with an LCD. Then, the real problem becomes figuring out the difference between the wattage rating and the "real" draw.
Currently, for my primary, I have a BenQ FP222, which they spec at 49W (not too bad, most 22" panels rate at 55W). It actually draws around half of that (which seems mostly influenced by how bright you want it), in my experience. I
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(replying to myself here)
Found one [zoho.com], using numbers from PG&E.
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See my other response [slashdot.org] on this topic. Not just possible, really pretty easy, with some care.
Also, TDP is not really a good measure of power efficiency.
Agreed, if for no other reason than because it means different things to different companies. But I did say "at the wall", and I meant it.
Don't get me wrong, I truly applaud Intel's attampts to reduce power consumption. But fo
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I actually mentioned two families of CPU, with the BE parts targetted at the desktop market (though they do draw 45W rather than 35W).
I doesn't matter what case it is in, a laptop cpu is still a laptop based computer.
No. A desktop with a LV CPU does not make it a laptop.
Laptops feel "weaker" than comparably-spec'd desktops for quite a few reasons... From abysmal disk performance, to memory and peripherals that go into low power mod
Price drop imminent? (Score:2)
How Much Hafnium? (Score:2)
Come Full Circle (Score:2, Interesting)
Now, the trend seems to be to return to the metal gates of yesteryear and ditch the oxide (the 'O' in MOSFET) f
What I'd like to see in a 45-nm process is ... (Score:2)
What I'd like to see in a 45-nm process is an ARM architecture based SoC (System on a Chip).
Power at idle (Score:2)
It still strikes me that Intel chips suck more power on idle, cost more, and run hotter when they run at capacity. So, since I don't do high-end processing, I don't need one. And my SQL servers benefit more from better bandwidth to the processor that high processing power.
So far, I have yet to see anything from I
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It still strikes me that AMD fanboys would repeat the same old line that hasn't been true for about a year.
It still strikes me that Intel chips suck more power on idle, cost more, and run hotter when they run at capacity.
It strikes me even more that the fanboys would trot this out in response to an article on an Intel chip that has an idle power draw less than 4 Watts.
It still strikes me that I
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Err... like most recent Intel chip codenames, Penryn is a place.
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What a coincidence! Precisely the traits that I look for when switching condom brands!
In that case, may I suggest you try some high-K metal-gate condoms?
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The processors will be generally sold as "Intel Core 2" or "Intel Xeon". The Pentium and Celeron brand names may also be applied
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As for Penryn, you can read about it here [wikipedia.org].
it's not the halogen atoms themselves (Score:3, Informative)
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And if they get hotter you can reconnect your hot water system to your servers too. Just think, a CPU that doubles as a coffee maker. If you want a fresh cup just set the scheduler to run a job to search for prime numbers.
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