Catch up on stories from the past week (and beyond) at the Slashdot story archive

 



Forgot your password?
typodupeerror
×
Upgrades Hardware Games

Revisiting How Much RAM Is Enough Today For Desktop Computing 350

jjslash writes: An article at TechSpot tests how much RAM you need for regular desktop computing and how it affects performance in apps and games. As it turns out, there's not much benefit going beyond 8 GB for regular programs, and surprisingly, 4GB still seems to be enough for gaming in most cases. Although RAM is cheap these days, and they had to go to absurdly unrealistic settings to simulate high demand for memory outside of virtualization, it's a good read to confirm our judgment calls on what is enough for most in 2015.
This discussion has been archived. No new comments can be posted.

Revisiting How Much RAM Is Enough Today For Desktop Computing

Comments Filter:
  • by TechyImmigrant ( 175943 ) on Tuesday August 18, 2015 @12:48PM (#50340641) Homepage Journal

    The more RAM I have, the better.

    Your game might have a limited memory footprint, but my entropy analysis algorithms do not.

    • by cayenne8 ( 626475 ) on Tuesday August 18, 2015 @01:02PM (#50340811) Homepage Journal
      I don't know much about games...but on my late 2011 MBP with 16GB ram, core i7 CPU...I can quickly drag it into the mud and bog it down 100% with some renders with After Effects CS6, or even FCPX with many laters, or PS CS6 if I have more than a couple layers with smart objects.

      I really wish I had about 64GB ram or more...am planning on going for a desktop this next time around of some type so that I can load it up more.

      • by Austerity Empowers ( 669817 ) on Tuesday August 18, 2015 @01:51PM (#50341333)

        The difference is on your MBP you probably never close an app unless it's a one-off that you don't use frequently. I know I have several dozen open apps right now across 15 virtual screens and servo between them over an 8 hour day as I become blocked on one task and switch to another. Why shut them down only to spend 10 minutes relaunching? On linux or OS X, with unlimited desktops, why bother?

        However on my Windows machine I tend to use just 2-3 apps at a time, and shut down before starting a new effort. This is pre-Windows 10 behavior, for the record. In windows multiple desktops was always a nuisance, so its best to close things down so your alt-tab or taskbar didn't end up unusable. I wonder if post-Win10, we don't see people using a lot more RAM.

        • Professionally (Software Developer) on a Windows 7 with 16G of ram (3 yr old top end Intel processor 8-core, I'm guessing i7 but not sure), 2 video cards with 3 monitors. I have Eclipse open with about 100 Maven Java projects open (don't ask). SQLDeveloper with some open connections to databases. Cygwin. Firefox with 8 tabs (gmail, subversion, jira, jenkins, intranet, slashdot, ...), a Cassandra database (for debugging and testing purposes, not under heavy load), some legacy Java services running with GUIs
          • For comparison, I am a software developer on Core i7 Win 7 64 bit on a 3-year old Lenovo T520. I regularly use 6.5 GB or more of 8 GB of RAM with one instance of SSMS and three or 4 instances of VS2013 (plus Chrome, IE, Outlook, and often some Office programs). There must be a lot of system shit sucking RAM, too, because I have never counted more than 5 GB of my own programs. But still, I'd at least feel way better with 16 GB. (Also, the company bought laptops with 160 GB hard drives, so I regularly have to
        • by Khyber ( 864651 )

          "Why shut them down only to spend 10 minutes relaunching?"

          If shit takes 10 minutes to relaunch you're doing something horribly wrong.

      • by Lumpy ( 12016 )

        Slap in a 1tb SSD and it really makes a difference I run 2 VM's daily on 16gb on a late 2011 MBP and the SSD make it faster than any brand new dell I have seen come in the office.

      • by runningduck ( 810975 ) on Tuesday August 18, 2015 @08:55PM (#50344057)

        No no no! You should never size a system based on likely real world scenarios over the lifetime of the system. You should always size a system based on single tasked benchmarks!

    • Ditto some of my Blender scenes, which can use up 20+GB of RAM, which pretty much rules out GPU rendering for me.

      • by suutar ( 1860506 ) on Tuesday August 18, 2015 @01:11PM (#50340907)

        Agreed with both you and GP, but I think this indicates a shift in what's considered "desktop computing". Not that long ago this would have been server work for anyone who had enough systems to distinguish between servers and desktops.

        • by Shinobi ( 19308 ) on Tuesday August 18, 2015 @01:49PM (#50341307)

          Bullshit... Video rendering and 3D creation and rendering was desktop work already back in the 90's for hobbyists and small studios, and remains so to this day.

          That's what pissed me off the most with the article, the video test was limited to encoding, not actually editing clips, working with layering, effects etc. Likewise, the Blender test is very limited in how many textures and complex multi-layer shaders are involved, it stresses geometry and rendering to a greater degree.

          Not to mention that when you sit and actively work with a scene, you often have photoshop, gimp or some other program open too, as part of your workflow, creating textures, UV-maps, light maps, shadow maps, mattes&masks, height maps and normal maps etc etc...

          • by jedidiah ( 1196 )

            Any computing task will eventually complete eventually. That doesn't mean that any one wants to put up with waiting for long compute jobs if they can avoid it.

            Anyone that's left the garage probably wants a render farm (and has one).

            Even some people that are still just working with a single rack in their bedroom probably prefer a cluster.

      • Same here with Maya. I've even thought about bumping it up to 64 GB from its current 32.

        Really, anytime I see these kinds of articles pop up, I just substitute its title with "How much X is enough for our product's target market" anymore. They're really not useful as a general analysis, the desktop market is just to broad.
    • by Tablizer ( 95088 )

      The more RAM I have, the better.

      So you can have lots and lots of active viruses.

    • I just wish I could buy desktops that supported ECC memory. A decade ago I could and I did.

      My most recent desktop has 32 gigs of ram. With firefox alone routinely climbing to 2.5 gigs, I don't see how anybody could survive on only 4. Well, use fewer tabs I guess. But that's just how I roll -- the tabs stay open until I no longer care about their contents.

      • Re:ECC (Score:4, Insightful)

        by markus ( 2264 ) on Tuesday August 18, 2015 @01:35PM (#50341145) Homepage

        Look into the "workstation" offerings from PC vendors such as Dell, HP and Lenovo. They all tend to accept ECC memory. I think, the Dell T7610 that I bought recently takes up to 256GB of ECC memory, although I currently only have 32GB in it.

        If you don't need the absolute latest model and/or if you are OK with a "scratch & dent" computer, you can often find amazing deals. With a little bit of shopping, I have regularly found top of the line Dell workstations for about 30% off list price. Hypothetically, if I split it for parts and sold just the RAID controller and the CPU online, I'd already make all my money back. And that's not even mentioning the included 3 year next-business-day on-site service contract.

        I have generally had great luck with my Dell purchases. Their high-end professional models aren't as cheap as a bottom-of-the-barrel PC from Best Buy. But the extra money does give you a much better machine; better performance, much better reliability, and just a really well-thought-out design. I find, I often use my computers for 6+ years before they are retired entirely. That kind of amortizes the cost.

      • Which is why my current desktop machine is a Dell Precision Workstation, its an older model, still on DDR2 ram, but takes up to 24GB, and supports ECC.. It came with a Quadcore Xeon, and an Nvidia Quadro workstation-grade graphics card and does Linux perfectly. Does everything I need on 12GB of ram, but have the room to take it up to 24GB should I need more "room"... Nice part was the machine was $300, about 2 years ago... Can't beat the offlease refurb'ed Dells for good value....

  • I have a MacBook Air w/ 8GB. I can run a browser with ~8 tabs, Eclipse, Postgres, Rails, and Mail, and not have it really feel sluggish.
  • by Nutria ( 679911 ) on Tuesday August 18, 2015 @12:51PM (#50340685)

    Who the hell voted *that* the be-all and end-all measure of need in desktop RAM???

    • by TWX ( 665546 )
      Someone operating in a little bubble.

      I've got a Windows VM for the corporate stuff that I have to do that has 2GB allocated to it. The box that the VM used to be on has 8GB, which is more than enough for the purposes it's used for. I've got other boxes that are basically just dummy console aggregators that have 2GB and could probably get away with more like 128MB given the lack of GUI.
      • 2GB is quite tight for a Windows VM now ; I've recently upgraded my physical RAM to 16GB and my Windows VM to 4GB and it performs noticeably better.

        All it does is run Office and a few other corporate apps.

    • They tested running a single game? That is incorrect. They didn't test the system by simply doing that and only that.

      TechSpot tested three different games, each running alongside Chrome with 65 active tabs. That simulated concurrently running (AKA multitasking) RAM-hungry applications.

      And before they even tested concurrent multitasking with games, TechSpot first tested the system with Blender and other applications, simulating app use.

      Did you RTFA?
  • Bullshit (Score:3, Insightful)

    by Anonymous Coward on Tuesday August 18, 2015 @12:51PM (#50340687)

    RAM beyond 8G, if not used for programs will be used to cache disk and any time you can cache disk you win.

  • Otherwise prices will collapse, and they'll have to burn down another factory to avoid saturating the market even worse!

    Besides, more RAM means I can run a bigger Beowulf cluster of virtual machines...

  • by ErichTheRed ( 39327 ) on Tuesday August 18, 2015 @12:58PM (#50340751)

    I routinely have scenarios where I have to take entire environments "on the road" with me. Either the access to "The Cloud" isn't available at a reasonable rate, or I have to simulate something in an environment where I control all the variables, like WAN speeds and such. The single best way to make VMWare run better on desktop hardware is to feed it more memory. The less it needs to swap out to hard drives, the more responsive it is.

    With the advent of cheap SSDs and multicore, multithread CPUs, the "responsiveness" factor requires less memory than it did for normal workloads. I put that in quotes, because responsiveness is a very fuzzy quantity, pretty much defined as "does the user notice how slow it is?"

  • by xxxJonBoyxxx ( 565205 ) on Tuesday August 18, 2015 @12:59PM (#50340761)

    >> As it turns out, there's not much benefit going beyond 8 GB for regular programs, and surprisingly, 4GB still seems to be enough for gaming in most cases.

    Why is this on SlashDot? Or am I in the minority here now because I develop, compile and look at memory dumps on desktops?

    • and look at memory dumps on desktops?

      That sounds like a disgustingly euphemistic photo album.

    • by jon3k ( 691256 )
      This article is a joke. What is a "regular user" and why would slashdot care, when none of us are "regular users" ?
      • This article is a joke. What is a "regular user" and why would slashdot care, when none of us are "regular users" ?

        Some of us have lives at home (believe it or not) and some of us don't take our work home with us (believe it or not) and we are actually pretty normal users during off-hours.

        • Personally I use more RAM at home (playing Cities: Skyscapes) than at work (compiling Java in Eclipse). But both machines have 16GB anyway.

      • Speak for yourself. I use regularly.

      • by BcNexus ( 826974 )
        No one said the experiments tested how much RAM is enough for a so-called "regular user." The article never says that. The article's purpose is to answer the question "Should I get 8GB or 16GB of RAM?".

        The author answers the question by running several experiments and giving the reader the results. Most of the Slashdot crowd is proficient enough in computer science to take those results and apply them to their own use cases. That is the value of the article: it gives you information that you can apply t
      • This article is a joke. What is a "regular user" and why would slashdot care, when none of us are "regular users" ?

        Many of us have family. Wives, kids, in-laws, or in some cases, Mom upstairs. Most of those family members come to us for support. Having some idea what a "regular user" does with his/her machine enables us to give decent advice.

        Some people on slashdot actually offer that kind of advice professionally. They probably need to know who and what those "regular users" are.

    • by BcNexus ( 826974 )
      Two reasons:

      The results apply to use cases that many folks encounter. For example: I develop, compile, and occasionally look at memory dumps; but I also support people who use apps (one of the use cases the author tested); and I also play games and use applications (also tested in the experiments) and I support people who do too.

      Moreover, this article takes the squishy question of how much RAM is enough and helps answer it with hard numbers and results that can be applied more widely than to just the
  • by JoeDuncan ( 874519 ) on Tuesday August 18, 2015 @12:59PM (#50340765)
    Easy. ALL the RAM.
  • Unless you can reverse years in a time machine, the answer is perpetually "More".

    Even without games, even if devs are careful, bloat is inevitable. Fire up youtube and MS word at the same time on grandma's machine and you're hanging with every click.
  • I've got a lot of memory that could theortically let me run a bunch of different games at once. But it's not too useful to any *one* of them, since they're almost all still stuck in 32-but world.

  • by m.dillon ( 147925 ) on Tuesday August 18, 2015 @01:10PM (#50340901) Homepage

    Honestly, these days if it has two memory slots I stuff it with 16GB of ram. If it has four, then 32GB of ram. Simple as that. Hell, I just put together a 'gaming box' for the son of a friend of mine a few weeks ago and thought 16GB would be enough (4x 4GB). I didn't even follow my own rule because I was being cost conscious. The first thing he did with it? Run minecraft with a visibility setting that ate up all 16GB of ram.

    Even more important than ram, stuffing a SSD into the box is what really makes everything more responsive. And even if it has to do a bit of paging it's hardly noticeable when its paging to/from a SSD. And if you do both, the box will stay relevant for a very long time, probably 10 years.

    But more to the point, why not?

    -Matt

    • by Lumpy ( 12016 )

      If it has 2, I give it 32gb. 4, gets 64gb. Why are you limiting your ram to half its potential? 16GB sticks are affordable.

  • are belong to ME!

  • A better discussion for Slashdot might be how much RAM is enough for developers.

    I can barely squeak by on 6 GB, but my next laptop will need to be at least 16 GB, if not 32.

    Funnily enough in my current configuration the biggest memory hog isn't VMWare or Oracle. It's Firefox.

    5326 jgotts 20 0 21.584g 1.891g 108628 R 82.1 33.0 287:20.13 firefox

    It's sometimes hard for me to determine whether Firefox is working properly or there is a massive bug. I have a fair number of tabs open, but never more t

    • by ADRA ( 37398 )

      For dev work sure, 16 is pretty good. I'd say 8 was a pretty good sweet spot. I've got 16 on my desktop, 16 on my laptop and 64 on my latest server and only the server comes close to using its capacity (2 DB's and some appservers).

      The desktop workload is maybe 10GB when I'm testing a full stack IDE/Client/AppServer/Database, but generally speaking 8GB is generally fine unless I'm really hammering it. Add another couple GB max if I'm doing perf analysis over the full stack, but that's not very often at all.

      I

    • by Socguy ( 933973 ) on Tuesday August 18, 2015 @03:21PM (#50342211)
      Absolutely,

      it's kind of sad to see all the posters indignant over an article that tries to determine the 'sweet spot' of RAM for the average user. Almost universally, they fail to recognize that they are not a typical computer user and that the article specifically carves them out.

      A rule of thumb before blasting out your complaints should be: If you have a job or a hobby that requires you to to be a heavy, continuous user of photoshop or compression software or some other RAM intensive program THIS ARTICLE DOES NOT APPLY TO YOU!
  • by AnotherBlackHat ( 265897 ) on Tuesday August 18, 2015 @01:18PM (#50340989) Homepage

    It's a rare developer indeed that makes software that works well with less RAM than they have.

  • It's a bit senseless to test whether there's a big difference between regular desktop use is affected by the jump from 4GB to 8GB when you have a a Geforce GTX 980 -- a card that has 4GB of its OWN RAM and costs as much as most people's workstations or home PCs.

    Anyone who is running a recently purchased system (within the last 2 years) with only 4GB of RAM is very likely using on-board video as well. Who uses these computers? Rank and file office workers and home users who don't know better.

    Getting j
  • Schools (Score:5, Interesting)

    by ledow ( 319597 ) on Tuesday August 18, 2015 @01:20PM (#50341021) Homepage

    I work in schools (in the UK, that means the standard, mandatory education up to 18, nothing beyond that). Most places I have spoken to are wary of 64-bit, even, so they're still technically running on, what? 3.5Gb or thereabouts?

    I have 64-bit throughout so I have 4Gb, but I've seen little reason to go past that. Pretty much the bottleneck is network, and if I get the network up to speed (not cheap), it would be server-side (disk array speed, etc.). The clients very rarely do anything that they aren't waiting for stuff from the network to complete.

    Next year, I may go 8Gb in the clients but I would predict to see much huger speed increases by just going to SSD on the client (Lifespan under swap conditions? Meh, drives barely last a year or two for us anyway and then we're replacing the whole machine - overprovision and let it loose and suffer a tiny client hard drive for the sake of speed).

    I really need cheap 10Gb kit, though - from server down to end-switch. Gigabit to the desktop is okay for now, but it won't be long. But RAM? Hell, 4Gb is fine for basically any business task unless it's a server. There, yes, fuck, you need as much as you can get. I just doubled all my servers RAM this summer, at great expense. But the clients are running Windows, Office, a few apps and a browser and rarely make it through the day without being logged off or shut down. And we do deal with large databases and centrally-stored stuff all the time, but that's for the server to worry about. The clients, however, need next to nothing.

  • Budget / (Largest RAM Sticks * # of slots)
  • I have 6GB which serves me fine so when I read the article I was going YAY!
    Then you bastards just had to spoil it for me didn't you.

  • I had 8GB in my desktop and was occasionally running out of memory due to either Chrome or Firefox(I didn't have swap activated). I upgraded to 16GB to alleviate this problem, which it didn't. I run out of memory just as frequently thanks to shitty browsers. Aside from that, yeah 16GB would be plenty for me. I just recently activated 2GB of swap to give me a little bit of time to kill Chrome myself before OOMkiller took over and froze my machine for an indefinite amount of time.
  • I've been using 4GB for the last seven years since I last rebuilt my PC for Windows Vista. Now that I'm re-building my PC to replace aging components, 8GB has become the new 4GB. The new motherboard I'm planning to get will max out at 32GB. We will see what the next seven years bring.
  • One word: RAMDisk
    Two words: Disk Cache

    I have 32 gig of memory on my system. 16 wasn't enough, i was running out of memory. with 32, I have an 8 gig ramdisk which I load my games onto (I'm only actively playing one at a time, so if I switch games, I load another). While I don't need it because of extremely fast D drive (RAID 10, 8 drives) and an SSD C drive, a good disk cache is also useful in reducing access time.

    It really depends on how much disk access you need to do. I'm writing some mods fo

  • I run my Hackintosh in VMware along with other operating system instances. (To be fair, the article cited virtualization as an exception to its otherwise disturbingly skimpy recommendation.)
  • Sometimes, the 16GB I have in my MacBook Pro isn't enough. However, that's primarily due to Safari being a horrible memory pig. I've had "safari web content" processes baloon up to 14GB.

  • When you run a single application or game, 8 GB is enough. You need 16 GB (or even more) for running many applications at once.
    Also, RAM is not cheap these days. 16 GB is more expensive now than it was 3 years ago when I bought my desktop. 57% more in Canada.

    • That's what I was thinking as well, on the cost front. I built my current PC a few years ago and periodically I have checked to see if I can get another couple sticks of the RAM I'm using. And so far I've never found it cheaper, and in fact yesterday it was 20% more than it was when I bought it.

      I've only very recently started having memory issues, using only 8GB. I've been hosting a dedicated server for an alpha game, running a client of the same game, and of course running sundry other applications like Fi

  • Some one said 640 KB should be enough.

    People repeatedly say "Gamers!" as the people who need high performance machines. I laugh at them. Gaming machines are probably the most powerful machines owned by real people. But when it comes to corporations... It is us the physics simulation people who solve partial differential equations who need really heavy hardware. Heck, we pack 8 graphics cards, yes 8 individual cards on special purpose mother boards, into one server that does not even have a monitor. Yes, w

  • by Mr.CRC ( 2330444 ) on Tuesday August 18, 2015 @11:59PM (#50344561)

    I put my current machine together a year ago with a i4790k, and a decent mobo. Installed LinuxMint 17. Then I did a little test. I ran everything I normally do at once, including VMware with 4GB of potential RAM, running AutoCAD and some other crap, in Linux running LibreOffice, Firefox with dozens of vids playing, mp3 players, Thunderbird, and half of the KDE apps. I think I finally got it near 4GB. So I added another 4GB.

    If I was doing heavy media editing, maybe more could help. Or heavy computations, which I don't do much anymore. 4GB would not be an obstacle for general office, browsing, and fooling around. This machine is mostly an indulgence, since there is little perceivable increase in UI performance vs. the dual core 3GHz/4GB one it replaced.

Avoid strange women and temporary variables.

Working...