I game at 1680 x 1050, by the way
been wracking my brain over the video card choice for awhile; and right now i'm between the GTS 320. 640, and the 2900 xt
and i still cant find any hard evidence of single card 2900 xt vs single card G80 cards with the new ATI drivers
I'm on the same boat and confused as hell.
If I lived in the US it would be easier for me, take a look:
PORTUGAL
Cheapest 2900XT: Gecube for €355
Cheapest GTS 640: EVGA for €405
Cheapest GTS 320: XFX for €285
Monitor: 1680x1050 Samsung 205BW
I left the 320mb version behind and I'm between the 2900xt and the GTS 640Mb.
2900xt:
Pros: Less €50; Driver updates (hoping that someday will smack the GTS)
Cons: Drivers as well (not consistent enough to beat the GTS in all games); heat output; power draw; noise at full load.
GTS 640:
Pros: Consistent drivers (at least in xp); Less noise; Less power draw; Less heat.
Cons: More €50; GTX kills it;
GTX: No way I'll give €600 for a card...
So, I'm still waiting. It never took so much time for me to pick a gfx card...
Go for the 2900Xt, its cheaper and has the ability to improve, the 640 doesn't, DX 10.1 support and better tech specs so with perfect drivers with will do better.