8800 gts 320 vs 640

[Eomer of Aldburg]

I've used both 320 and 640mb one. 640MB FTW, games like oblivion with Qarl pack and Graw Love the extra video ram.

 

[Munky]

The problem is not the amount of memory, but the way 8800gts performs from less memory. There are 256mb versions of 512mb cards which retain 90% of the performance, but with the 8800gts the 320mb model takes a much bigger hit in some games even at 1280x1024 resolution. But, the drop in performance almost always comes from enabling AA, so if you don't mind dropping down to 2x or 0x AA, then the 320mb card is a great value compared to the 640mb card. If it was up to me, I'd go with the 320mb card for 1280 resolution, because the performance hit relative to the 640mb card is much less than the price difference.

 

[Keysplayr]

Or, you can take all the guesswork out of it and use this:

Video Memory Watcher

Keys

 

[marcool]

According to this Review, the difference in performance at this time, it is not noticeable

 

[Munky]

Oh, the difference in performance is definitely there but the >$100 price difference completely overshadows the performance difference.