Hey everyone, just bought a new 670GTX. I'm pretty happy with it. It's behaving exactly like in the guru3D reviews. Only there is one thing. Sometimes i see the core clock going up to 1084MHz, but most of the time this happens when GPU usage is only 50%-80% and I'm already running a solid 60FPS. Then when things get real intense, it always drops to 1071MHz. Why is that happening? Why doesn't it keep running at that speed when I need it? When I have 99% usage it never runs at 1084MHz, while the power usage readings are only 80-85% and temps never higher than 77C.