Quote:
Originally Posted by AP4LIFETN  I dunno why it reads 256 instead of 320, maybe someone else can elaborate..but ur total isn't 640mb, its only 320mb because the data on each card has to be mirrored, so effectively u only have 320mb video memory. thats how dual GPU's work for the time being because the memory can't be shared. |
Data is not mirrored on both cards.
Evidently you don't understand that in SLi each card renders half the screen. So there is no data being mirrored. It is unique to each card.