I have a XFX Radeon 7870 and I've been doing benchmarks on Kombuster 2.5 with it. The max temp it reads out to is 65C. However, when I play a game like Crysis, the temps shoot up to 80+ and even games like Civ 5 which arent graphics intensive, it gets 70+. What is wrong with the graphics card? Is it an issue with software?