Hi I have an XFX HD6950 2GB graphics card, for which I have just ordered an accelero 7970 cooler. So far so good, but now the problem. I have just won a brand new Sapphire HD7870 for an obscene low price ( £55) of a well known auction site. My dilemma, do I fit the cooler on the Very noisy 6950 or do I put it on the 7870 which apparently is much quiter. Any one have a comparison on the relative noise levels. ?