Bubblewhale, its not. After restarting pc it looks ok untill next stress situation. xNeon, I'm NOT OCing Tnx, Mateyyy Actualy when running Kombustor, Afterburner shows 947Mhz Coreclock, 150Mhz Memory (in 3Gb memory burn too) - i dont think that memory frequency matters. Actually i think that it happens in EACH GPU stress situation, but due to CPU bottleneck only Mantle and Kombustor can stress GPU enough...