Originally Posted by NarcissistZero
So I switched back to my GTX 275 and ran the same tests I ran with the 5870 this morning.
Only two games lose fps on the GTX 275, Battlefield Bad Company 2 and Just Cause 2. Just Cause 2 lost about 10fps, but since it runs at 70-80fps anyway I hardly consider it a loss. BC2 is the major factor with the card, as it runs at 30-40fps almost no matter what on the 275, but was getting 50+ on the 5870... it was in the ads on ati.com as well, so I assume them working with Dice is a factor here.
Several games ran BETTER on the 275... Fallout 3, GTA4, Blur, Farcry 2 and more.
5870 can kiss my ass.
This is so off topic though, so... apologies.
With BF BC2 are you forcing DX10 on the HD5870 though? Otherwise you are comparing DX11 to DX10 and we all know there is a decent hit from DX11 in BF BC2. Try forcing DX10 on the HD5870 and compare them.
Also, wondering if your CPU is limiting the GPUs. My HD5870 smoked my overclocked GTX 280 but my Q9550 was at 4.1Ghz, then I moved to this I7 @ 4.2Ghz so my CPU has never been a bottleneck.