Clock-for-clock the ASRock H55DE3 was able to keep up with more expensive Socket 1366 hardware.  In the end, the ASRock H55DE3 is a great board for a bargain price.  It isn't fancy and doesn't have enthusiast features like a CMOS reset button, on-board power buttons or even Firewire.  For the price it is pretty hard to beat though. . .