Crossfire with 2 Radeon 4890's benchmarking really low

matt36

Distinguished
Sep 10, 2006
2
0
18,510
I just ran 3D Mark 06 on my PC, and it seems like it is benchmarking really low. Here are the main specs of my machine. I did not overclock anything.

Windows 7 64-bit

Core i7 920
6GB DDR3 1600
2 Radeon 4890's in Crossfire

I am only getting a score of 17,697 marks. This is lower than a lot of scores with one card.

CCC detects both adapters (one as primary, and the other as linked). GPU-Z says "ATI Crossfire Enabled (2 GPUs).

Any ideas what the issue could be?
 

envolva

Distinguished
Dec 7, 2009
72
0
18,630

If you didn't overclock your CPU the score is right on the money.
If you did overclock the CPU, I don't know, that score is not possible with a single ATI 4890.