IMC on the CPU is the limiting factor, i'm very happy with the memory:d
It was clearly the best when i was binning CL26 @ 6400MT/s with different memory sets
For CL32 8000MT 1.51VDD is required
CL30 8000MT/s needs 1.71 VDD
The only drawback is that they dont like GDM disabled above 8200MT/s...