so i recently picked another 4890 for cheap to crossfire with my old one . installed fine then i ran 3dmarko6 and got around the same score for 1 4890 around 15000. in crossfire im only receiving around 15493 . is my e8500@3.16 bottle-necking my crossfire setup or is the 8x8 links the bottle-neck. 10.12 wouldn't work well so i went back to 10.9 ccc .
e8500@3.16
4x1gb kingston hyperx 1066 ddr2 5-5-5-15
p5q pro turbo
corsair tx750w
4890 crossfire
3hdds none slower than 7200rpm a
coolermaster hyper n520
thanks for any help
steve
the cards have different clocks and makers one is a visiontek hd4890 oc 1gb @ (950/1050) and the xfx hd4890 1gtb @ (850/975). would that be why im not seeing the scaling peform well?
yesterday after running gpu-z its said my 1st pcie is at 16x 2.0 and my 2nd pcie is at 8x 1.1. why would that be at 1.1? is there any way to fix this and my bios is fully updated to 0602 .
thank you
e8500@3.16
4x1gb kingston hyperx 1066 ddr2 5-5-5-15
p5q pro turbo
corsair tx750w
4890 crossfire
3hdds none slower than 7200rpm a
coolermaster hyper n520
thanks for any help
steve
the cards have different clocks and makers one is a visiontek hd4890 oc 1gb @ (950/1050) and the xfx hd4890 1gtb @ (850/975). would that be why im not seeing the scaling peform well?
yesterday after running gpu-z its said my 1st pcie is at 16x 2.0 and my 2nd pcie is at 8x 1.1. why would that be at 1.1? is there any way to fix this and my bios is fully updated to 0602 .
thank you