The 6990 runs roughly 10% faster than the 7970 on average depending on the game and on the benchmark you are running.
The 6990 is a bit of a power hog requiring 375W to run at stock speeds and if you want to overclock it you will need to be able to provide up to 450W to a single pci-e slot in order to do this.
The 7970 only needs 250W to run at stock.
Svaret blev redigeret 1 gang, sidst af TheReazepter d. 05-02-2013 10:27:12.
#3 Det gør de fleste spil nu om dage jo, men ja der kan være ulemper ved dual-gpu :) Men performance i de fleste spil der giver 6990 10-15 fps mere end 7970 :)
Ja strømforbruget ligger omkring der i forskel, den er på de 100-150watts forskel :)