I just reread my first post in this thread and realised it made me sound like one of those MS haters that we have at work. Just to clarify, I'm not having a go about the performance of Vista. I fully understand that this is really early days and I expected these problems. I'm happy with Vista and expect that over the coming months drivers will mature to the point where gaming performance is equal to that of XP. I actually managed to run a few benchmarks on my dual boot system and they don't reflect as badly as I would have thought. Before running the benchmarks I would have sworn blind that the framerates would only be half of what I'm getting in XP, that doesn't seem to be the case. Driver stability is another issue, I'm getting a lot of crashes in games which I'm sure is simply bugged drivers.
System: AMD x2 4400, Nvidia 8800GTX, ASUS A8N-SLi Premium, 2gb Corsair XMS, Audigy 2zs, 2x74gb Raptors RAID0, 2x160gb WD RAID0, DELL2407.
Drivers used - XP: Official Nvidia 97.92 Vista: Guru3d Beta 100.30
3DMark05 (cannot get 06 to run on Vista)
XP - 12515
Vista - 11932
CS:S (1920x1200, 4xAA, 8xAF, Max detail)
XP - 181.11
Vista - 169.23
FEAR (1600x1200, 4xAA, Max detail)
XP - Min: 35, Avg: 95, Max: 227
Vista Min: 22, Avg: 77, Max: 177
Doom3 (1600x1200, 4xAA, Ultra Quality)
XP - 111.4
Vista - 85.6
WoW (1920x1200, 4xAA, Full AF, Max detail. Using Fraps to record a quick run across same map on same server)
XP - 72.14
Vista - 43.10
I think that the figures aren't that bad and I've come to the conclussion that the reason I thought it felt worse is that at the moment in Vista the games initially chug along a bit more than in XP which makes them feel worse. You know how sometimes when you go to a new level in a game or look at something for the first time and it stutters a bit while it loads it, this side of things seems worse in Vista. Also the drops to lower framerates seem to occur more frequently and to lower FPS in Vista. Nothing to drastic and I'm sure this is going to improve with each driver release.