fps drops at 60°C

I've just noticed that my 6935g cpu throttles when the fan reaches max speed. Which is about 62°C on my GPU, and 57°C on my cpu. I find it odd that it starts throttling when the gpu temp is raising and not the cpu. And the throttle itself does nothing towards lowering the temp so it continues throughout me playing the game at the same temp as if it didnt throttle :/

Is that a safe temp? and is there a way to disable the thermal throttling? Atm it reduces the speed in half and I can't play any games without it doing so. Older games I can't manage 30fps for 5mins while mirrors edge i get 60fps for about 3mins then BAM 20fps.

My idle temps seem a little higher than normal. GPU 50°C, Core 2 54°C, core 1 57°C, cpu 45°C motherboard 46°C. Actually the cpu results are lower now that i've restarted, at 45/49/48.

Does that sound normal? thanks