only if the game fit exacly into your 'vram' no mb more.
if you play a game like ArmA2 the game is 100X time bigger than your vram or do you have 16gb and more vram?????????
on ARMA2 your geforce 8800 lose because you only will watch ungly helper textures because geting the textures over the PCIe line is to slow!
be sure your 8800 is crap compared to an 5670.
error in the vram managment: http://de.wikipedia.org/wiki/Nvidia-...chermanagement