Gaming Performance - OpenGL
Moving on to OpenGL and Quake 4, we'll be able to see how well NVIDIA and AMD have done in building their own OpenGL ICD (installable client driver) for the API. This is more taxing on hardware vendors, because Microsoft's implementation of OpenGL is just a wrapper around DirectX. By default, unless an ICD is used, OpenGL applications cannot talk directly to the hardware.
We did have some issues with Quake 4 as well. We were unable to get the application to run stable with multi-core support enabled, so we tested without this option. Even on Windows XP we see much higher numbers during CPU limited testing with this option enabled, but we will have to do without for a while. It isn't clear whether this is a problem with the game, with Vista, or with OpenGL, but hopefully it will be resolved (preferably sooner rather than later).
As expected, OpenGL performance is much worse both in CPU limited and GPU limited cases. The reason the low end AMD cards look better off here is that their performance is simply bad across the board. NVIDIA seems to perform closer to XP in general here, and both companies are saying that performance will improve over time. GPU limited performance does seem to improve over CPU limited performance, indicating that driver overhead on the CPU is a major factor contributing to the reduced frame rates.
Now let's take a look at how Vista x64 compares. This will actually serve as a good test of how well NVIDIA and AMD have implemented their x86 and x64 versions of their OpenGL ICD as well.
Again, the low end AMD cards just look like they are doing better because they perform poorly in general. In CPU limited cases, x64 actually seems to perform better than under 32-bit Vista, and even GPU limited performance is very close between the Vista versions. This could indicate that AMD and NVIDIA's OpenGL ICDs benefit from 64-bit processing, even if the game itself does not. However, unlike Oblivion, the performance of Quake 4 in Windows Vista is substantially slower than under XP, sometimes as much as 30% slower.
Last up for Quake 4 is resolution scaling.
While it's very clear that XP is a better option for OpenGL apps right now, there are no real scaling surprises. The CPU performance/driver overhead seems to be a bigger factor in reduced Vista scores than the actual GPUs, as the scores tend to get closer in GPU limited situations.
Gaming Performance - x64
Finally, we have Half-Life 2: Lost Coast with its native 64-bit application running under Vista x64. Is it worth it? We're only providing resolution scaling results for this game.
Clearly the 64-bit application runs slower than the 32-bit, especially at CPU limited resolutions. Even the games we tested running under WoW in 32-bit mode on Vista x64 showed better performance parity with Vista x86 and Windows XP. While the resources are there to offer better performance with more registers and better memory management (especially on systems with more than 4GB of RAM), there is clearly something that's lacking here. It is likely that Valve has more work to do on their 64-bit Source engine, but we can't rule out Vista x64 as a factor altogether.
We had hoped to see better performance from a native 64-bit game, but it looks like we'll have to wait longer until game developers figure out how to capitalize on the extra resources available under Vista x64 without adversely affecting performance.
Moving on to OpenGL and Quake 4, we'll be able to see how well NVIDIA and AMD have done in building their own OpenGL ICD (installable client driver) for the API. This is more taxing on hardware vendors, because Microsoft's implementation of OpenGL is just a wrapper around DirectX. By default, unless an ICD is used, OpenGL applications cannot talk directly to the hardware.
We did have some issues with Quake 4 as well. We were unable to get the application to run stable with multi-core support enabled, so we tested without this option. Even on Windows XP we see much higher numbers during CPU limited testing with this option enabled, but we will have to do without for a while. It isn't clear whether this is a problem with the game, with Vista, or with OpenGL, but hopefully it will be resolved (preferably sooner rather than later).
As expected, OpenGL performance is much worse both in CPU limited and GPU limited cases. The reason the low end AMD cards look better off here is that their performance is simply bad across the board. NVIDIA seems to perform closer to XP in general here, and both companies are saying that performance will improve over time. GPU limited performance does seem to improve over CPU limited performance, indicating that driver overhead on the CPU is a major factor contributing to the reduced frame rates.
Now let's take a look at how Vista x64 compares. This will actually serve as a good test of how well NVIDIA and AMD have implemented their x86 and x64 versions of their OpenGL ICD as well.
Again, the low end AMD cards just look like they are doing better because they perform poorly in general. In CPU limited cases, x64 actually seems to perform better than under 32-bit Vista, and even GPU limited performance is very close between the Vista versions. This could indicate that AMD and NVIDIA's OpenGL ICDs benefit from 64-bit processing, even if the game itself does not. However, unlike Oblivion, the performance of Quake 4 in Windows Vista is substantially slower than under XP, sometimes as much as 30% slower.
Last up for Quake 4 is resolution scaling.
While it's very clear that XP is a better option for OpenGL apps right now, there are no real scaling surprises. The CPU performance/driver overhead seems to be a bigger factor in reduced Vista scores than the actual GPUs, as the scores tend to get closer in GPU limited situations.
Gaming Performance - x64
Finally, we have Half-Life 2: Lost Coast with its native 64-bit application running under Vista x64. Is it worth it? We're only providing resolution scaling results for this game.
Clearly the 64-bit application runs slower than the 32-bit, especially at CPU limited resolutions. Even the games we tested running under WoW in 32-bit mode on Vista x64 showed better performance parity with Vista x86 and Windows XP. While the resources are there to offer better performance with more registers and better memory management (especially on systems with more than 4GB of RAM), there is clearly something that's lacking here. It is likely that Valve has more work to do on their 64-bit Source engine, but we can't rule out Vista x64 as a factor altogether.
We had hoped to see better performance from a native 64-bit game, but it looks like we'll have to wait longer until game developers figure out how to capitalize on the extra resources available under Vista x64 without adversely affecting performance.
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redpriest_ - Thursday, February 1, 2007 - link
Did you guys run the 64-bit tests solely on the Intel Conroe platform? Or did you test an AMD based platform as well? Recall that Conroe has a few performance enhancing features that *only* work in 32-bit mode (branch fusioning, for one - some decoder limitations as well).That could explain why a Core 2 Duo system might have seemed slower in 64-bit than in 32-bit mode.
Jeff7181 - Thursday, February 1, 2007 - link
SuperFetch is by far my favorite new feature of Vista. I put my first copy of Vista on my laptop, which has a 5400 RPM hard drive. Opening apps Outlook and VB .NET 2005 EE weren't really slow under XP, but there were those few extra seconds it took to load that would often leave me tapping my finger on the palm rest while I waited. Now under Vista, Outlook, VB .NET 2005 EE, and IE7 all seem to be able to fit in the SuperFetch cache, as they all open nearly instantly with just 1 GB of RAM. I'm considering upgrading to 2 GB just to see what else I can get to open really fast. :Dbldckstark - Thursday, February 1, 2007 - link
Was superfetch disabled when you tried the Readyboost feature in Vista? Whichever way you ran the test it bears mentioning. If it was off, then how does it do with it on? If it was on, it may make a difference in how it relates to XP.Also, as I understand it Vista has a system backup now that creates a "ghost" of the drive. Could you check out this feature and get back to us?
JarredWalton - Thursday, February 1, 2007 - link
I'm not sure it's possible to disable SuperFetch, so I'm pretty sure all testing was done with it on. As far as the "ghost" goes, that's part of System Restore which can be disabled quite easily. I'll have to let the other editors say whether it was enabled or not, though.WT - Thursday, February 1, 2007 - link
What drives me nuts are the plentiful comments about how slow Vista is compared to XP. I mean, anybody hear this before when MS came out with a new OS ? Same thing for XP,W2k,98 ... ad nauseum. Yea, its a new Operating System with more 'toys' built in, what were you expecting ? You aren't gonna load it on your P3/256 RAM rig and enjoy the Vista 'experience'. Damn, this thing runs better than XP on my rig !It's understood that it won't be as quick (keep in mind the OS has been available for retail purchase ... 2 days now) as XP, but drivers will improve that performance gap to a smaller number within 3 months time. I waited until just last year to upgrade to XP (W2K all the way for me !) but find myself with 2 copies of Vista and would prefer to dual boot one and go Vista all-out on the other one.
I griped back in my W2K days about being forced to upgrade due to content (MS games were announced that would only run in XP) so this time around I will be ready.
DX10? Marketing genius !!! We shall force an upgrade upon the masses !! I upgrade frequently, so DX10 and its graphical splendor is a priority, but if I would have to fork over $200 to actually buy Vista, I would be less than impresssed with DX10 eye candy.
EODetroit - Thursday, February 1, 2007 - link
Hopefully, now, finally, Anandtech will start testing motherboards for stability while loaded with the maximum amount of memory. So if the MB supposedly supports 8GB of RAM, you test it with that much, and make sure its stable. I've wanted this done for years... memory is expensive and it sucks to load a MB up and find out it doesn't really work or only works if you cut the speed in half.Thanks.
manno - Thursday, February 1, 2007 - link
... no mention of DRM then? No mention of Linux? Personally I hate Linux, but I've switched to it because of Vista's use of DRM. Not all Microsoft's fault, but they put it in there... My computer, my hardware, I choose what to do with it, not MS, not media companies. Why shouldn't I be able to watch High def content on my old, and once expensive non-HDMI LCD screen?Get a Mac, Apple is the lesser of 2 evils, they aren't the 800lb gorilla in the room. MS could have told media companies to stuff it. Apple has no choice, it's too small, yet their the ones that forced DRM-Light(TM) on the media companies. MS had the media companied force DRM-Oppressive(TM) on them... how the heck does that work?
I can't believe you left Linux out of the final comparison, is it as capable an OS, yes. Not nearly as user friendly, but it also has 0 DRM, doesn't phone-home isn't beholden to any one entity. I'm not against DRM, as a whole, just Vista's implementation. BS like MS creating D3D to subvert open standards like OpenGL, then removing it from the OS, using it's monopoly-based-ridiculous-margins(TM) to finance D3D's uptake, again rather than take an existing standard and expanding on it. They create their own to reinforce their monopoly. I know why they do this stuff I'm just peeved so many people don't give two flying f...
grr...
-manno
mlambert890 - Friday, February 2, 2007 - link
Youre insane dude.. No offense but there just isnt anything else to say. Posts like these always read like the transcript of a Weather Underground meeting in the sixties. "FIGHT THE POWER!!! FIGHT THE POWER!!!"Look out! The black helicopters have deployed from the underground helipad in Redmond and are circling!!! Send up the penguin symbol to summon the dynamic duo - Torvald and Stallman!
Reflex - Thursday, February 1, 2007 - link
There is no more or less DRM in Vista than in XP, or even OS X. The platform does not determine the playback of DRM'd media, the content does. The choice is simple: If you want to play back DRM'd media, then you have to support the decryption scheme that the media requires to decode it. In so doing you have to legally accept the limitations defined by that DRM scheme.It is no different for OS X, Linux, XP or any other OS. They either support the DRM schemes or they do not get to playback the media that uses them. This is why it is unlikely that you will be able to play DRM'd High Definition content anytime soon on Linux. That is the alternative, no support for the content at all.
Also, you can play high definition content on Vista just fine without HDMI/HDCP on your monitor. You simply cannot play back such content if it is coupled to a DRM scheme that requires HDCP, but that is true of every OS. Any other HD content will play back without issue.
Again, there is no difference between DRM on Vista from DRM on any other platform.
pmh - Thursday, February 1, 2007 - link
The DRM in vista is the major reason that I will only install it if physically forced to. Having bought a new Dell in order to get their very nice 24" LCD last december, I have an upgrade coupon which will lie unused until/unless the DRM can be disabled. MS refuses to display HD on my new monitor using Vista? Screw em.