It's super duper fast, almost 30,000 on benchmark multi-core score. The PSU did go out, though, and I replaced it, was pretty painless...I just didn't want to spend any money on it though...I think it's even faster than nMP base or mid level.
I just wish I got the x5690 and maxed it out 🙁
But I got a good deal on the x5680 before the x5690s prices dropped.