![]() The rest of the 7000 series cards will be using the VLIW4 architecture first seen in the Radeon HD 6000 series though with improved SIMD wide-vector execution. Only the 7900 series cards will use the GCN (Graphics Core Next) architecture with Compute Units as well as using XDR2 memory, which Rambus touts to be the fastest memory system in the world, offering double the bandwidth per circuit of GDDR5 while using 30% less power. ![]() Unfortunately there is nothing listed for the flagship dual 7990 but it is possible to go by the numbers of the 7970 and make an educated guess. While they are not confirmed and should be taken with a pinch of salt these leaks will always generate interest. The leak comes amidst AMD's vow to release 28nm graphics cards this year with Q4 dawning on us it would be no surprise to see some rumours and numbers bouncing around. The above table shows currently known codenames and model designation for AMD's next generation 'Southern Islands' graphics cards. ![]()
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