GDDR3 is truthfully more beneficial helpful. in case you look, you'll stumble on GDDR3 has basically two times the memory clock of GDDR2. it ought to attempt this because it produces a lot less warmth (because it calls for much less voltage i imagine). GDDR3 can make like 1k distinction in 3dmark, so that you're good. besides, more beneficial clocks = more beneficial memory bandwidth it really is will strengthen performance. I were given an Inspiron 1520 with GDDR2, even if it grow to be in elementary words $450, so I figured it grow to be nicely genuinely worth the downgrade. besides, it really is a extraordinarily good gaming lappy, and it truly is going to play COD4 and Crysis. That reported, those video games will push the obstacles of the cardboard. At acceptable assume Medium settings on Crysis. i imagine you could really assume to pull of Medium in COD4. Crysis would should be med-low settings. That reported, it is also depending on decision and anti-aliasing factor.