One of Microsoft’s stated goals for Windows 8 (and the only reason, really, why there continues to be a 32-bit version of the operating system) was to maintain compatibility with any system that could run Windows 7, so the official system requirements for the OS are going to be the same: a 1GHz processor, 1GB (x86) or 2GB (x64) of RAM, a DirectX 9.0 compatible graphics card with WDDM drivers, and a dozen or so gigabytes of hard drive space.

Under the terms of these requirements, Windows 8 could run on an old Pentium III equipped with an old ATI Radeon 9600 and a gigabyte of SDRAM (and, knowing computer enthusiasts, it probably will), but what are the actual minimum requirements that will yield a usable machine? Will Windows 8 actually run well on anything Windows 7 ran on? And, most importantly, is it a good idea for you to upgrade your old system? To help you out, I've put together a list of specs that I think will get you an acceptable Windows 8 experience (for the purposes of this review, I assume you meet the hard drive requirements already).

 

Microsoft minimum system requirements

AnandTech minimum system requirements

CPU 1 GHz or better Dual-core processor or better
GPU DirectX 9.0-capable with WDDM driver 256MB DirectX 10.0-capable GPU or IGP
x86 RAM (x64 RAM) 1GB (2GB) 2GB (4GB)

As you can see from the Hardware Used in This Review page, I’ve put Windows 8 through its paces on a fairly wide array of hardware both old and new, fast and slow. The good news is that Microsoft’s claims are true, and that Windows 8 runs ably on hardware that ran Windows 7, even netbooks that flirt with Microsoft's minimum system requirements. In some cases, as in boot speed, Windows 8 actually performs substantially better than its predecessor, but it’s not going to make old hardware new again—if your poky processor or low RAM impacted your PC’s performance under Windows 7, Windows 8 isn’t a magic bullet that’s going to make those problems go away.

One thing to pay especial attention to as you evaluate whether to upgrade a computer to Windows 8 is its GPU. In my experience with testing, Metro was surprisingly fluid even on an old Intel GMA 950, which is just about the weakest, oldest GPU that still meets the minimum system requirements. You won’t want to use it to push multiple monitors, but for basic Metro and Aero usage it performed reasonably well on the laptop’s 1440x900 display. The same goes for the Intel GMA X3100 and ATI Radeon X1600, the two other DirectX9 GPUs in my lineup of test machines.

Where things start to fall apart is in Metro apps—basic ones like Mail and Photos work fine, but things that are even modestly graphically demanding are going to choke on these old DirectX 9-class graphics chips. Even plain old Solitaire suffered from input lag and poor performance on these GPUs.

For gaming and other purposes, Microsoft recommends you use a DirectX10 or better GPU in Windows 8, and I agree—for anything more than basic Start screen functionality, you’ll want a dedicated DirectX10 or 11 GPU, or IGPs starting with Intel’s 4-series GPU, AMD’s Radeon 3200, or NVIDIA’s GeForce 9400—stuff that was current right around when Windows 7 was launching. The stronger the GPU the better, of course, but after evaluating performance on quite a few different machines I’d say that this is probably the minimum you’ll want for a consistent Windows 8 experience, especially if you’re using multiple monitors.

The other problem with DirectX9 GPUs, of course, is driver support—while Intel appears to be issuing new Windows 8 drivers for all of its WDDM-supported products (Windows 8’s driver for the GMA 950 is version 8.15.10.2548 dated 10/4/2011, compared to Windows 7’s version 8.15.10.1930 dated 9/23/2009) and NVIDIA offers current drivers for its GeForce 6000 and 7000 series cards, neither AMD or NVIDIA offer drivers for DirectX9 laptop GPUs, and AMD stopped offering new drivers for DirectX9 cards in early 2010.

It goes without saying that computers being sold today, namely Sandy Bridge CPUs and anything branded as a part of AMD’s Fusion platform, run all of Metro’s flair just great, and the Ivy Bridge chips that will be current when Windows 8 lands in stores later this year will be even better.

My last note on system requirements involves hard drives—while Windows 8 ran pretty well even on cheap 5400 RPM mechanical HDDs, we here at AnandTech are huge advocates of using solid-state drives in just about any computer physically capable of using one. No matter what OS you use, a good SSD is the best upgrade you can buy to speed up your computer and make performance more consistent, and Windows 8 is no exception.

 

Battery Life Explored Next Steps and Conclusions
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  • Andrew.a.cunningham - Saturday, March 10, 2012 - link

    Yes it will.
  • poisonsnak - Saturday, March 10, 2012 - link

    As Andrew said it will run fine on AMD hardware. I've been running the Developer Preview since September on my Phenom II X6 1100T & Radeon 6970, which I then (side-graded?) to an FX-8150, and then upgraded to the Consumer Preview.

    The only BSOD or crash I've ever had was when I tried to install the AMD USB filter driver under the developer preview - it warned me the driver was unlikely to work, I gave it my usual "I know better than you" and promptly got to see the fancy new Win8 BSOD screen.
  • rickmoranisftw - Monday, March 12, 2012 - link

    Haters gonna hate man. I'm sorry people have blown up on you for no reason.
  • Andrew.a.cunningham - Tuesday, March 13, 2012 - link

    It's cool - mostly I'm just confused about it, but the constructive comments have far outnumbered the trollish ones at this point. :-)

    Either way, I'm working on getting an AMD system for future use.
  • kmmatney - Friday, March 9, 2012 - link

    Don't worry about it. He tested enough systems, and you can make a guess as where AMD would stand in those systems. I agree that a lot of people use AMD - it's all I buy for friends and family as the Microcenter deals are too hard to pass up. I don't think it effects the review at all - Windows 8 won't look any different on an AMD system.
  • rickmoranisftw - Monday, March 12, 2012 - link

    I too just created an account today. Ive been reading anandtech for a while now but havent bothered to make an account. But today i had too.

    There is absolutely no reason for you or anyone else to blow up on Andrew for only using intel systems for this review, a review of a preview at that, when his reasoning was extremely simple. He just didnt have an AMD system on hand. Who are you to blame anyone of being biased when you know nothing about them.

    I'm disappointed that i didn't read these comments until today (monday) or i would have commented sooner. I was so pissed off after reading these comments i messed up two different captcha's when making my account just now. I hope you're just saying this to try to feel some sense of superiority over someone who actually has a job on a real tech site, and not because you actually think andrew is that biased toward intel. Because that's just stupid.
  • Andrew.a.cunningham - Tuesday, March 13, 2012 - link

    Thanks. :-)
  • AeroRob - Friday, March 9, 2012 - link

    I don't see how anyone who's spent so much as five minutes along with Windows 8 on a normal desktop computer--let alone hours--could say that the new start menu system is even remotely an improvement on the old system. It is unequivocally worse. It creates a jarring, disjointed experience, with an interface that is less versatile and consequently makes simple tasks more difficult.

    Why must I jump through hoops just to shut my computer down? Or if I'm not sure Windows considers what I'm looking for an app or a setting, why do I have to do multiple searches, when previous versions of Windows would show me all the possibilities?

    It would be so simple for Microsoft to solve all these numerous (yet minor) annoyances: give a legacy desktop option. Just one little checkbox to where a user can specify that they would rather boot into the desktop than the Metro BS, and to restore the start menu to a Windows 7 state. You can't tell me that would be difficult in the least, but MS would rather be obstinate jerks, trying to force users into a "new experience" that they don't want, don't like, and that actively works to make their workflow more inefficient.

    Change isn't a bad thing, but only when that change is an improvement. Going from the XP start menu to Vista's added functionality and made things easier. Going from 7 to 8, though, is a step backward, and users shouldn't have to suffer just because MS wants to push their little pet project.
  • jabber - Friday, March 9, 2012 - link

    I'm glad I'm not the only one. I find myself having to move left to right across the screen to do stuff that a simple rightclick/clcik would do previously.

    Having to use the keyboard for stuff that a mouse click did previously as I cant work out if there is a mouse equivalent or if it exists at all.

    No visual clues as to how to use it. Just clicking on all the empty space in the hope something useful happens.

    I see one thing makes the desktop bit shrink to a small size in the middle of the screen. I have no idea what that is for.

    I think Metro is fine for folks that have never used a computer for real day to day office work that brings home the bacon. You know the types.
  • AeroRob - Friday, March 9, 2012 - link

    Assuming MS doesn't reverse course on their "Abandon the Start Menu" decision, hopefully by time the RTM version rolls out, they will include some sort of tutorial the first time you switch into desktop mode.

    Really, though, the whole ordeal reminds me of when Apple made the iPod Shuffle without any buttons on the physical device, and insisted on making users learn a sort of Morse code on the remote to accomplish anything. You could argue that a single button makes things "simplified," but that doesn't prevent it from being an inane, unproductive input method.

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