How Much Memory Does Vista Need?
With Windows Vista coming soon to a retail channel near you, one of the important questions to ask is, "How much memory does it really need?" There are the official minimum requirements of 512 MB, but we all know that minimum requirements don't translate to a great experience. What are the real memory levels that get good performance? After having used it for several years during the development process, I figure I'm in a pretty good place to help answer that question. Vista definitely requires more memory than XP did to achieve similar levels of performance. That is to be expected with all of the new functionality invovled. To run Vista at its best, I recommend you have at least 1.5 gigabytes of RAM. In my experience, the following is a mapping from XP RAM to Vista RAM requirements for eqivlaent performance.
XP RAM Vista RAM
128 MB 512 MB
256 MB 1 GB
512 MB 1.5 GB
1 GB 2 GB
In my experience, XP ran very well with 512 MB and only slightly better with 1 GB (unless you were putting it through a very serious work load). To get this kind of performance out of Vista, you really want 1.5 GB. 1 GB will work but it will be sluggish at times. Anything less than 1 GB will feel very slow.
If you have experience with Vista through the business release or a beta, what sort of memory performance levels do you see? Do you concur with my recommendations?
Note: This is not official guidance. This is based merely upon my personal observations. Your mileage may vary.
Comments
Anonymous
January 22, 2007
I don't disagree with your table, but I think there is more to it than just RAM. For example, I have a 6-year old laptop that is a P3 @ 850Mhz with 512MB of RAM (max. possible for that model). When I first loaded Vista, it was terribly slow, and after a while, I noticed that it had loaded the plain-vanilla VGA driver. After I installed an XP-compatible driver specific to my video hardware, the performance became faster and quite a bit more acceptable. I even find that I can run Visual Studio 2005 on it, albeit a bit slowly, but it is acceptable for off-site work now-and-then. All that said, I agree with your theme that Vista runs best with more memory, and 1-2GB seems to be the sweet spot.Anonymous
January 22, 2007
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January 22, 2007
I had a laptop with 512MB and an XPDM driver and still found the performance quite slow. Lots and lots of hard drive thrashing. YMMV. As for the comment about the VGA driver, you'll find XP excruciating with a VGA driver too. There are definitely a lot of things that go into making Vista a good or bad experience. Memory is just one aspect of it. I think for average tasks (surfing the web, writing a document), memory has become one of the most important.Anonymous
January 23, 2007
Here's my table, running Vista since build 5270. Steve, I think you're a bit harsh on Vista. XP RAM Vista RAM 256 640 512 896 1024 1.5 GBAnonymous
January 23, 2007
I'm running Windows Vista with 768 MB and it's very fast.Anonymous
January 23, 2007
@RyanBemrose Aero doesn't use system RAM but only the memory on your graphics card.Anonymous
January 23, 2007
Would a ReadyBoost capable device make a difference here? Or is Vista's working set that much bigger? What parts of the system is the extra memory spent on, so to speak?Anonymous
January 23, 2007
Hendrick, I didn't try all of the various steps in between. I definitely noticed slowdown in my 1 GB Vista system that I don't tend to notice with 512 MB XP systems. It's very usable, but not as snappy as it could be. Luc, I had a laptop with 768 megs and a 2.4 ghz processor and found it to really drag. It's good to know that 768 megs is working well for you. Juha, I haven't tried one so I can't speak. ReadyBoost seems like it would help alleviate the disk grinding I noticed but I can't speak from practical experience. There are a lot of things that use up the memory. Sidebar, Aero, the indexer, the shell, etc.Anonymous
January 24, 2007
Microsoft's official recommendations are 512MB for a "Vista capable PC" and 1GB for "Vista Premium Ready". Of course, nobody takes such recommendations seriously, anymore. Steve Row, a Microsoft employee, just posted an i...Anonymous
January 25, 2007
@SteveRowe I think you've some hardware or software incompatibility because Windows Vista on my system with 512MB runs fast, very fast, faster than XP!Anonymous
January 28, 2007
I think that the graphics card has much to do with the performance of the Vista machine. Been running Ultimate with Dual core and 1Gb of Ram, been very stable and fast but required a new graphics card with 256MB on-board to get best results.Anonymous
January 29, 2007
@Kevin Moran You can buy a Geforce 6200A AGP 8X 256MB DDR with less than 50$ and it runs very fast with AeroAnonymous
January 29, 2007
I think that 2GB of RAM is the inferior limit. I've tried beta 2 of vista on my Intel Dual Core at 3ghz with 1gb of ram. System was very fast, and aero was perfect with the geforce 7600gt. But with a few applications opened, like word, excel and media player, performances drammatically reduced (and 1gb of used ram was reached). In Xp these programs and os take togheter less than 400 mb. Finally i ran 3dsmax, which i work with, and i had no words... In my opinion a basic user needs 1gb at least, but a power user who works with 2d/3d applications, or audio/video editing, needs 2 or more gb of ram, while to do the same things with xp 1gb is more than sufficent.Anonymous
January 30, 2007
I find it ludicrous that an operating system requires this kind of memory overhead even compared to the bloated Windows XP. The MS OS has its good points but overall I think it's held people back. People were walking all over it's features with lesser-known OS's (most notably the one on the Amiga), in the 80's. The Amiga OS came on a floppy and it was designed from the ground up to offer pre-emptive multitasking and a WIMP user interface. If you have ever used that machine you will know what real multitasking is. It's getting ridiculous with the MS, and all it's doing is increasing an already bloated hardware/software solution to the point where it becomes prime hacker fodder. In a mission-critical environment I would not recommend it, far from it and using it at home in my SOHO I find it cumbersome and inefficient. It's just that so many people are sold on it through marketing despite alternatives I have no choice but to use it. Vista is a classic example of MS's marketing..slow, inefficient, unstable, bloated and requiring years just to get it to the point where it is usable. You spend more time debugging the software than you do using it, and from an end user perspective that is not what computers are all about, they are supposed to evolve. I had this problem in 1987 when I decided to test Mac's and Amiga's for creative work, and I still have the same problem today only of course, using faster processors inside the PC. Now that the Mac has x86/x86-64 compatible processors as well as the ability to run alternatives like Linux and virtual machine technology, I can't see MS retaining its customer base not on a personal professional level. At last.Anonymous
January 31, 2007
@workbench, I cut my teeth on the Amiga. It was an awesome machine for its time but that was 20 years ago. Yes, it had pre-emptive multitasking before any of the other PC OS's but it was also missing some key things like memory protection. The Amiga was years ahead of its competition but it has been more than 20 years since it was released. The PC today has capabilities beyond it in every arena (multitasking, audio, video, chrome, etc.)Anonymous
February 04, 2007
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February 06, 2007
maybe http://3v1n0.tuxfamily.org/blog/informatica/linux/il-vero-wow-beryl-compiz-altro-che-vista/#commentsAnonymous
February 15, 2007
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February 20, 2007
Vista Home Basic runs fine on 1GB of RAM. Even with Word 2007, IE7, Media Player, Slide Show and a couple of other applications running RAM use is just 46%!Anonymous
February 21, 2007
If you want to do any gaming at all, on any operating system, you need at least 2 gegs of ram, if you run vista, at least 3Anonymous
February 24, 2007
It seems like with the years they've had to develop it, MS could have made the code leaner or equal to XP. I understand their desire to help sell new equipment (after all, it ensures you buy more products), but I can't help but think that a fat bunch of code equals a fat bunch of problems in the long run.Anonymous
February 24, 2007
@Rob - When you add features, you add code. More code means more memory and more processing power.Anonymous
March 02, 2007
Half Gig of RAM causes slow CPU on most tasks. I tend to believe 2Gigs would be about right.Anonymous
March 04, 2007
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March 04, 2007
NO DEMOS ARE PROVIDED BY COMPANY FOR ANY WHO DOES NOT HAVE FASTER INTERNET, NO HELP IS GIVEN COMPANY.............Anonymous
March 08, 2007
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March 09, 2007
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March 14, 2007
I am trying to run Word 2007 on Vista With a Core 2 Duo T5050 processor and 1g of ram, Slow as a snailAnonymous
March 15, 2007
Hey guys. I'va been reading all the comments in this blog, and such. This whole conversation raises up one question for me... should I get Vista or XP for my new pc that I am getting in 2 months. I think I'll be getting an Intel Core 2 Duo E6400 processor (2x 2.13 GHz), a NVIDIA GeForce 7600GS video card with 256 MB of RAM, and 2GB of memory. I'll be playing games like Wolrd of Warcraft, or Armed Assault (what, I'm just 14 years old), so will games and some document programs like Word or MS Works perform better on XP or Vista?Anonymous
March 15, 2007
I can't comment personally on the games but I'm running pretty close to that system. I have a Core 2 Duo 6300, a GeForce 6800GS, and 2GB of memory. It run very smoothly. Everything is moving to Vista. If you get XP now, you'll have to deal with upgrading to Vista later. It's cheaper to get Vista now. Doing a little research leads me to this article on ExtremeTech (http://www.extremetech.com/article2/0,1697,2090575,00.asp). It says, "Vista runs WoW just beautifully."Anonymous
March 22, 2007
Windows Vista is very scalable and so it flies also with 512MB. You need more RAM if you use a lot of applications simultaneously, but on average usage 512MB is good enough.Anonymous
September 07, 2007
I have an 'older' machine, a Toshiba M400. Vista isn't blazingly fast on this machine. Here are some