Ok these 2 Video cards This one has 64 bit http://www.newegg.com/Product/Product.asp?...N82E16814143058 This one has 128 bit. And this is OC'd http://www.newegg.com/Product/Product.asp?...N82E16814143059 I know the 6200 would be better if the bits were the same. But does bits effect performance alot? So the 6200 or 5500? (I am trying to run source games) ----------- I picked the 5500 becuase it was OC'd and 128 bit.
The least I would get is a 6800GS, OC it and unlock the pipelines and you've got a great gaming card. Of course it's quite a bit more expensive than those other cards, but it's worth it.