I don't see how going from a $200 (or lower) 6600GT to a ~$600 6800GT is worth it??? That's like ~$400 difference, and definetly not worth it IMO. a 6600GT overclocked and tuned will play newer games GREAT at great quality settings.
512MB or RAM is usually sufficient for gaming, and 1GB can be even better (in some instances though it is worse, due to a hit on FSB, timings, and overall bandwidth). But if using the right RAM's adding another 512MB stick usually increases perofrmance.
Solid 1GB sticks are usually the Worst for overclocking, and right behind them are the 512MB's. Right now 256MB sticks are really the ones worth overclocking. Hopefullt this will change though...
512MB or RAM is usually sufficient for gaming, and 1GB can be even better (in some instances though it is worse, due to a hit on FSB, timings, and overall bandwidth). But if using the right RAM's adding another 512MB stick usually increases perofrmance.
Solid 1GB sticks are usually the Worst for overclocking, and right behind them are the 512MB's. Right now 256MB sticks are really the ones worth overclocking. Hopefullt this will change though...