the 3820 is by no means a "gaming" processor.
Huh? Where'd you come up with that?
The 3820 is an LGA 2011 processor... maybe in the future he wants a 3930K or 3960X. Either one would contribute to his system well. And before you say anything about Z77 notice he has a revodrive and 2 690's. PCIe bandwidth is key.
LGA 1155 = 16 lanes, dual channel
LGA 2011 = 40 lanes, quad channel