Quote Originally Posted by zanzabar View Post
the 512 mb card has slow memory the ddr3 is way slower than the ddr4, just in latency the ddr4 allows a faster speed with a lowwer latency multiplyer, ddr3 is 2/3 while 4 is 4/4, so u get faster speeds with 1/3 more bandwidth
The thing is, the hd2900xt isn't bandwidth limited. Kind of like feeding massive bandwidth the the A64, it isn't making too big of a difference.