My AIDA64 results are consistent. Cache results scale with processor speed. Never had it report low like that.
I'm able to get 5.2GHz all eight cores stable now. Just have to not be afraid to throw voltage at it. These processors like it. I'm settling on 5.3GHz up to two cores and 5.2GHz on all eight. These CPUs are great if you know how to squeeze the performance out of them.
Ran CPU-Z bench for the heck of it. Look at that IPC.