It slightly worse, if you are only gaming go for the 6600 or the 6700, I got the 6700 OEM for less than the 6600 and got my own heatsink. But if you don't plan to OC/want to keep costs down, a 6600 will do perfectly.

Also, you'll want more than 2GB RAM, THIS is the cheapest 4GB kit on OCUK.



www.scan.co.uk are a good place to buy things too, my delivery arrived perfectly on time and very well packaged.