My point made, this way here the GT is better. Im sorry but i would rather have 16 pipes then taking a risk OCing like "mad". Even though i do it on my GT i still would rather have more pipes than clock speed. Also i run COD2 and FEAR fine maxed out.
Sorry mate but someone with experience with both a GT and GS I will undisputably suggest that the GS is the better card and there is no "risk" in overclocking it...I am running this sucker 530/1260 and it dominated my previous GT running at 430/1150, and this is comparing stock cooling to something under water, no doubt the GS can go further but I just haven't had the chance to test it
Obviously if you're looking at real world performance there would be no noticable difference, but the better card is the GS regardless of pixel pipelines...if anything ATI r520 and r580 GPUs have demonstrated this time and time again
Both the 6800GS and x800GTO2 as mentioned here already are good cards for the price...it would really IMO come down to which one is cheaper and how much work you wanna do, the GTO2 would have to either go through a bios flash or the longer but slightly safer process of manually unlocking and overclocking...whereas the GS is all about just bumping up clock speeds...if you're comparing stock speeds though the GS is the better card