Is WoW lagging on your pc? I don't mean when you're alone walking around, I mean when there's a 50-men raid.
I don't think anything is wrong with the mobo, but some boards are unstable even with stock settings. They have to be fine-tuned both in BIOS & Windows.
Out of the 2, the Intel build will overclock very well. Look for a Xigmatek cooler.
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