So I just got the 720 two days ago. I really expected the cooler to be a bit bigger, its only about the size of my crappy Athlon 64 X2 cooler. But im pleasantly surprised on how decent it cools. It idles around 32-34C and at 100% load it never goes above 49-50C. I was able to unlock the 4th core but the temp sensor went out when it was unlocked so I couldnt monitor temps. All in all im pretty happy with the stock cooler, prolly gonna boost it up to at least 3.2ghz.