Command Rate Support | VarOffset: 0x212, VarStore: SaSetup (0x16)
Disabled: 0x0
1 CMD: 0x1
2 CMDs: 0x2
3 CMDs: 0x3 (default)
4 CMDs: 0x4
5 CMDs: 0x5
6 CMDs: 0x6
7 CMDs: 0x7
It's a hidden setting changeable with Grub. I set it from 0x3 to 0x0 and see some improvements:
The weird thing is that MemTweakIt still shows 0x0 as ?T (or N:1T) - it should show 1T.
The test on the right is after setting it to 1T in MemTweakIt.