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 - Friday, March 9, 2012 - link

    Hopefully some of those multi-monitor and "four corners"-related issues get worked out in the release candidate. It would help a lot.
  • Impulses - Saturday, March 10, 2012 - link

    I'm not holding my breath for that... It took them until Windows 8 to add basic taskbars for the extra screens, it'll probably fall to 3rd party developers to make the whole Metro/Desktop paradigm usable with multiple displays, just like we relied on them for multiple taskbars, better wallpaper support, etc.
  • Exodite - Saturday, March 10, 2012 - link

    Well, I don't know if my 2c is worth much but the answer to that would - in my opinion - be 'why should we?'.

    I don't /have/ to use Windows, it's a personal choice.

    If the UI, or anything about the user experience in general really, ends up being a bother for me I can quite easily migrate to another platform.

    I suppose this is a good thing, if taking the long view. Microsoft might inadvertently encourage diversification of the desktop computer space by making W8 horrible to use for a notable minority.
  • B3an - Friday, March 9, 2012 - link

    @Andrew and everyone else who worked on this - great article :)

    It's nice to FINALLY see a very detailed article that shows all the improvements in Windows 8. Too many people are focused on just Metro. I'm sick of having to write long posts explaining to people how to use Win 8, and why it's faster and more powerful for most tasks if people would actually just learn new things, and then having to mention all the new features to the desktop. Now i can just refer people to this article ;)

    Great work.
  • jabber - Friday, March 9, 2012 - link

    Don't have time to learn new stuff that's not putting money in the bosses wallet, just need to get the work I'm paid to do done ASAP. That's why Windows 7 worked so well.

    Companies don't pay folks to sit and learn learn new software or want to hear them bleating on about how they don't know what to do.

    Too much like hard work. Sorry but that's how it is. Business as usual is king.

    I too can see some great improvements in 8 its just that it (as in Metro) is NOT designed for a standard run of the mill PC environment.

    Windows tablets are not going anywhere. That ship sailed for MS years ago. It's the Zune all over again in that regard. So just keep it for phones and maybe adding a little fun to those desktop all in one monstrosities that HP etc. make.
  • B3an - Saturday, March 10, 2012 - link

    I'm so glad MS have not listened to people like you with Win 8. If they did then im sure we'd all still be using Windows 3.1.

    And your comment makes no sense. Win 8 is faster for work when you actually get used to it, so in the long run this will pay off as people will be more productive. And people have to learn new software all the time, like the Ribbon in MS Office.
  • Magnus101 - Friday, March 9, 2012 - link

    I am on a multi-monitor setup and I tried the dev version in Virtual Box last month.
    I had to turn off Windows 8(had to do a different setting for the virtual machine, I think).
    Couldn't find where to power off.

    Found out by a video that I had to hoover in the right hand corner, but that didn't work. I thought the version I used had dumped that ability (the youtube video was quite old).
    So I had to look up a shortcut to open up the start menu and finally get it to shut down.

    Of couse the problem was that I used multiple monitors (use 3) and that I coudln't "snap" to the point where the start menu was.
    This shows how extremely bad this is.

    Another idiotic thing with metro is that programs behaves like apps on a mobile phone. They don't really shut down unless you force them to.
    I tried one of the metro games where there was some music playing. There was no option to quit the game, so when I left it, the music was STILL playing in the background.

    I had to force close the damn thing to stop the music playing!

    And I find absolutely nothing that makes my experience better with metro than the Windows 7 taskbar. Less clicks and more things in a smaller place is ideal for me. Not to mention that the horizontal scrolling is idiotic in metro.

    Look at how Unity in Ubuntu was received when it was released. People fled to Linux Mint, where there are options to use the "old style" desktop.

    One thing that was really good with Windows 8, though, was the new Explorer with many enhancements and actually more space (the bottom part is free compared to win 7).

    I just wish there would be a "Windows 8 desktop" version where the users like me who don't have a windows tablet, Xbox 360 or a windows phone could enjoy the other enhancements not letting metro totally destroy the experience!
    I guess 80-90% will still use older windows version even at the end of 2013 if nothing is done about this crap. Things like metro or unity just doesn't work on a normal Pc and aren't well received by users!
  • faizoff - Friday, March 9, 2012 - link

    You might want to try out the Consumer preview since you've tried the metro apps on the Dev preview. They mention in the article about closing out the apps. They aren't that difficult to close now. Though shutting down and restarting the computer is still a chore.
  • PopinFRESH007 - Sunday, April 15, 2012 - link

    Hovering the mouse over the left most 80 pixels to pop out the multi-tasking tray and then click-holding the app and dragging it down is a whole lot more work than clicking a little red x.
  • faizoff - Friday, March 9, 2012 - link

    I'll have to read this thoroughly when I get home. I find myself really liking Metro even on a PC. I don't see myself getting it when it comes out for the PC though. Only way I'm getting it is when Win 8 tablets come out.

    Skimming through the comments, I had mentioned about the restart and shutting down annoyance. I found a shortcut that allows to place a tile on the metro screen thereby clicking only once to shutdown or restart the computer.

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