quote boggy_b1Have you tested with many games? As you can see in my article, some do not show performance gains. In my case, it was Street Fighter IV. I suggest you test with the Unigine Heaven benchmark to see if your scores are similar.In your article there is a chart with tests on non DX11 games, as this chart reflects exactly what is happening to my crossfire setup I've thought the game I played (Battlefiled 3, multiplayer) does not support the DX11, but it does.
Could it be that I don't have the DX11 installed or enabled somehow?
Also, someone told me that the APUs low bandwidth could slow the dedicated GPU down. That's why the dual graphics works poorly.
Is this possible?
quote boggy_b1Hi boggy,Actually I have this two items and crossfiring them didn't improved graphics at all. In fact the video quality and in-game FPS was reduced as if I was using the APU integrated graphics only. Could this be a problem of drivers? Note that I've installed latest drivers from AMD (12.8 and 12.9 cat1).
Here's my rig specs:
Motherboard: Gigabyte GA-A75-D3H
Processor: AMD A8-3850 (with integrated HD6550 graphics)
Memory: 8Gb Kingston 1600MHz
Video: Gigabyte Radeon HD6670 1GB DDR3 128-bit
HDD: WD 500Gb 7200Rpm
PSU: Inter-Tech Energon 550W
I would be very grateful for a helpful reply.
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