Okay, so I got the 320MB version for 80€ and was wonderin' as my grand parents have the 8800GTS 640MB version and obiviously don't need it, would it be worth changing? Is there a big boost in gaming nowadays if I change?
And please, no answers such as:
Put them both in SLI
buy a new pc
Yeah go on.
The two have the same GPU/memory bus so performance is rather similar if there is enough memory however that being the case you'll probably prefer the 640mb for gaming. Most games are written for 512mb video ram for high settings.
And my grandpa does some 'hard-core' video editing and stuff so all relatives bought a new computer for him. I just built it, I didn't buy the parts but yeah imo the 640mb is too powerful for him as he edits videos and play's solitaire only.
And no, he's indeed not a pro (or even a regular) with computers.
The G80 does n`t deal too well with AA, so the extra memory of the 640 might help, particularly if you intend to play more demanding games.
Or you could simply try to compare them on your rig and see which is best at your settings