So I have the Asus AMD Radeon HD 6670 and the APU A8 6600K with radeon graphics. Although I now want to know if I can crossfire the two and will it benefit me? I have searched throughout the web and nobody seems to have an answer on this?
All of your answers are greatly appreciated.
Here are my system specs:
Power Supply : 500 Watt
Motherboard : Gigabyte F2A55M-HD2
CPU : AMD FM2 A8 6600K APU Quad Core CPU 3.9Ghz (turbo 4.2Ghz) Black Edition
Hard Drive : 1TB Sata 6Gb/s Hard Drive
Memory : 8GB DDR3 1600mhz Memory
Connections : 4 x USB 2.0 Rear / 2 x USB 2.0 Front/Side / LAN / Sound / HDMI / VGA / DVI
'Cross-firing' an AMD Richland APU with a discreet video card is called "Dual-Graphics" --- Your A8-6600K should run in dual-graphics with your discreet Radeon HD 6670 without problems.
Some gaming titles will receive quite a nice boost in FPS and some will receive no boost at all. Some titles may actually run worse in dual-graphics. Therefore, it is important that you benchmark your games, and set appropriate game video subsystem profiles for them in CCC to maximize the gaming performance (HD 8570D-HD 6670 dual graphics or HD 6670 only).
There is also some fine-tuning that will help your gaming performance --- your GPU core clocks should be sync'ed as close as possible, and memory speeds on the HD6670 should be tweaked and tested to determine best output.
Also -- depending upon the revision of your motherboard, faster RAMs (up to DDR3 2400MHz) can significantly improve the graphics performance of the Richland HD 8570D graphics engine.