Interesting article on Vista vs. XP 7 months later

[roctronic]

Its very long, i kno....but its pretty good.

QUOTE

Introduction


Already we’ve seen DirectX 10 games like Lost Planet, Company of Heroes, and BioShock debut this summer, but it’s the next crop of games that has everyone really excited. Titles like Crysis, Hellgate: London, Unreal Tournament 3 and Gears of War PC all look stunning and have many gamers pondering whether it’s finally worth taking the plunge on Vista and DirectX 10. But before these games can be enjoyed in their full DX10 glory, it’s going to be critical that all gamers who want to enjoy the full experience from these games not only has the proper hardware in place, but software (i.e. drivers and hotfixes/patches) is going to be critical as well. If the graphics driver and surrounding software isn’t up to date, all the graphical eye candy present in these upcoming games will basically be useless.


New features

Looking over the release highlights for Catalyst 7.9 and ForceWare 163.69, you can see that both AMD and NVIDIA have made numerous improvements in their latest drivers. Catalyst 7.9 lists performance improvements for Radeon HD 2000 series cards in numerous games, and even a few performance enhancements for older Radeon 1000 series cards, while one new feature has been added to the driver: color temperature control. The driver also fixes visual glitches with BioShock and Lost Planet (among other games).

NVIDIA’s release highlights for ForceWare 163.69 is a little more cryptic, only mentioning “Improved compatibility for The Way It’s Meant To Be Played™ game titles: BioShock, Crysis, Enemy Territory: Quake Wars, Hellgate: London, and World in Conflict” as well as “Improved compatibility and performance for NVIDIA SLI™ technology on Microsoft® DirectX® 9.0c and OpenGL® 2.1 applications.” However, the new driver goes much further than that.

One undocumented issue that has been fixed in ForceWare 163.69 is the random slowdown bug that affected GeForce 8800 GTS 320MB cards. As a result of the bug, in some cases performance would suddenly drop dramatically. Users would have to alt-tab out and then back into the game (clearing the card’s video memory) to resolve this issue.

ForceWare 163.69 fixes this issue, so gamers with GeForce 8800 GTS 320MB cards who have encountered this issue will definitely want to give the new driver a try.

And for those of you running Windows XP who are holding out for WHQL-certified drivers, we’ve been told that a ForceWare 163.7x driver will be released sometime next week.








Conclusion


Looking over the performance results, it’s clear to see that both AMD and NVIDIA’s Windows Vista drivers have come a long way in the past seven months. NVIDIA in particular has made tremendous strides with their latest Vista driver, SLI support is fully functional for all GeForce card owners and it scales well in most cases. Unfortunately, CrossFire compatibility is still an issue for AMD. New games like BioShock and World in Conflict don't support CrossFire at this time, and Lost Planet and Quake Wars have graphical glitches. Let’s go over the results shall we?




F.E.A.R. and Oblivion were easily the best case examples for both AMD and NVIDIA. Performance with both of these games was largely similar regardless of the OS tested, whether we were running a single card or with two GPUs. S.T.A.L.K.E.R. didn’t scale quite as perfectly as F.E.A.R. and Oblivion under Windows Vista with the Radeon HD 2900 XT and GeForce 8800 GTX, but it was pretty close.

Enemy Territory: Quake Wars ran similarly on all the AMD configs we tested with regardless of OS used, although as we noted last week we witnessed numerous graphical glitches when running this game with CrossFire enabled: basically it runs, but it doesn’t always look pretty. NVIDIA’s single card performance was excellent in Quake Wars, but under SLI we did notice a performance hit under Vista for the GeForce 8800 GTX and 7900 GT SLI configs. In the case of the GeForce 8800 GTX SLI, performance was off by 8% for 32-bit Vista compared to WinXP at 1600x1200. That margin shrinks to 4% at 1920x1200.

Company of Heroes took a hit of 4% at 1600x1200 with the GeForce 8800 GTX and 5% with SLI but this figure is reduced down to 2-3% at 1920x1200. Honestly though this is such an imperceptible difference that you’ll likely never feel it in game.

BioShock is the one title that AMD really needs to work on. As we noted in our BioShock performance articles, DX10 performance is significantly slower than DX9, and the game doesn’t scale at the moment with CrossFire. The Radeon HD cards also lack support for AA in BioShock. You have to rename the game’s executable in order to force AA, and as we discussed in our BioShock AA article, this disables all of AMD’s driver optimizations for BioShock. While we didn’t run specific performance comparisons, it seems like NVIDIA’s performance in BioShock has improved tremendously with this latest ForceWare driver. We’d guess performance has improved by over 10%. SLI also scales much better than it did previously. We’re seeing nearly 2X performance scaling with BioShock and ForceWare 163.69, whereas previously that number was a little under 1.5X. With all that being said though, Windows XP did run up to 8% faster than Vista in our testing. Still, we were very encouraged by these results.

If you were debating between the 32-bit and 64-bit flavors of Windows Vista, fortunately it looks like performance is similar with either version. Both AMD and NVIDIA’s drivers for both versions of Vista perform practically identical to one another. And if you were concerned about game compatibility with 64-bit Vista, one of the guidelines Microsoft has required for Games For Windows certification is that games must be compatible with Windows Vista x64. This means if the game has a Games For Windows logo on the box, it’s been tested to run with 64-bit Windows Vista. Upcoming games like Alan Wake, Crysis, Fallout 3, Gears of War PC, and Hellgate: London are all Games For Windows compliant.

Considering all this, we’d recommend our readers opt for the 64-bit version of Vista if you’ve got a 64-bit CPU. It runs just as fast in games with the added advantage that it’s more secure and can address considerably more memory (4GB max in 32-bit Vista versus 128GB in 64-bit Vista Ultimate).




If you were holding off on Windows Vista due to the driver situation, it looks like the situation has largely been resolved for both AMD and NVIDIA. nTune functionality under Vista is still limited, and we’d like to see NVIDIA provide the option to adjust key settings like AA/AF via an icon in the system tray, but other than that, we really can’t complain. NVIDIA took a little longer to get everything resolved, but it appears they’ve delivered the goods just in time, as a slew of new DX10 games will be debuting in the next few months.

We wouldn’t be surprised if a few of these games ran faster under Windows XP at first, as Dwight Diercks reminded us in our last Vista vs XP performance article, NVIDIA’s WinXP drivers have benefited from years of optimizations. Game developers are also far more familiar with DX9 and WinXP and will obviously be testing their upcoming titles with this combination extensively, as DX10 and Vista are nowhere close to reaching the installed base of the WinXP platform.

In our opinion, AMD’s greatest issue isn’t their Vista driver performance, instead it’s optimizing for today’s upcoming (and present) DX10 games. Games like World in Conflict and BioShock have performance issues with Radeon HD 2000 series cards under DX10, and CrossFire support is nonexistent. AMD really needs to kick it into high gear just to get caught up in these newer games, which makes us worry about performance in games like Hellgate: London, Unreal Tournament 3, and Crysis, which haven’t been released yet. Hopefully AMD is already working with these developers on optimizations. As we mentioned in our BioShock Mainstream Performance article, the Radeon HD 2000 delay really hurt AMD. Not just from a financial standpoint, but also developer relations. Game developers just haven’t had access to AMD’s DX10 hardware for very long, and as a result, they haven’t had time to optimize for features in AMD’s architecture. Likewise, AMD’s driver team is still tuning the Radeon HD 2000 series graphics driver. It’s a situation that needs to get resolved ASAP for AMD.

After getting off to a less than ideal start, it looks like the graphics drivers from AMD and NVIDIA are finally shaping up well. A lot of people are probably still going to wait for the first service pack, but if you were holding off on upgrading to Vista due to the driver situation, the problem has mostly been resolved: AMD still has lingering scaling issues with CrossFire, particularly under newer DX10 games.

Now we just can’t wait to check out the latest DX10 games!

UNQUOTE

Really, no huge performance gain with XP over vista but when SP3 comes out, cross your fingers cause that might change!! I had to cut out some but w.e

website: http://www.firingsquad.com/hardware/...rmance_update/

[chewett]

but although there are many fixes on vista so that games play on it it is not the fixes of the os but the software running on it

it is still bugged with lots of problems so if you can play games but not do word processing you can put it down to vista

personally i prefer my xp as it is compatible with everything and i know games and programs will work on it

[bonbon]

Same also, i prefer to use windows xp operating system that is compatible to all computer transactions, gamings, office, business outsourcing, networking, etc.

Even vista had its greater features than xp but still not a friendly user like xp.