Quote:
Originally Posted by Arinoth  Doesn't work that way as most cards both nvidia and AMD will only sli or crossfire with the same model card otherwise as even with that the faster card will operate at the slower cards speed. You also cannot mix graphics architectures. |
Theres Hybrid Crossfire. Also this:
AMD Llano APU to Get Dual-GPU Technology Similar to Hybrid CrossFire - Softpedia