Sometimes the tires that come with a car aren't really that good. They'll do the job, but you can replace them with something better.
I actually answered my own question. I tried the retail HSF, and then tried a volcano 6cu. The volcano 6cu is about 5-6 degrees C cooler under full load, and about 8-10 degrees cooler idle.
"There's no such thing as gravity, the Earth just sucks"
The HSF that comes with the retail Athlon is sufficient (just barely) so long as you don't overclock. AMD doesn't release the name of it's supplier due to the fact that they can change suppliers quite frequently. I've heard rumors that Coolermaster is supplying them right now.
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