I have read that the CPU TDP rating is not consistent between manufacturers, so you shouldn't try to compare CPU's that way. But what if you are talking about different CPU's from the same mfg? Like AMD. Once I had a Athlon XP CPU that had a TDP of 60W. I bought a copper heatsink and fan (probably Thermaltake) that kept it under 40 degC all the time, and normally around 35. Now, if I am looking to buy an APU (A6) from AMD that has a TDP of 65W, would it be reasonable to assume that a similar heatsink/fan combo would keep things about the same temp? Assuming that I am doing the same things on the new system?