Can somebody explain to me WTF is going on with my GPUS?


so using teamredminer latest version while having my vega 64 (nitro+) on stock bios  core1100@ 820mV mem 1100 @ 850 mV

with memory timings cl 22 ras 35 rcdwr 12// rcab 44 rcpb 44 // rrds rrdl 5// faw 20 //REF 17550//RFC 247

I get 51Mh/s @ about 140 watts.

When I downgrade my bios to a vega 56 one (so from vega 64 TO vega 56, not the other way arround!) 

1) the memory timings mentioned above dont work

2) this memory timings work 0 --RAS 26 --RCDRD 13 --RCDWR 12 --RC 38 --RP 12 --RRDS 3 --RRDL 5 --RTP 6 --FAW 12 --CWL 8 --WTRS 4 --WTRL 9 --WR 14 --REF 20600 --RFC 244


and with the above ("2") and core at 1100 810Mv and mem 1045 @ 82Mv The damn thing runs at 55Μh/s while consuming less power!!!


unfortunately I cant got more than 1045 though (despite when being on vega 64 bios I cat get easilty to 1100)

but the question is HOW DOES THIS WORK? can anybody give me a kinda technical explanation as to why with a downgraded bios + slower mem frequency the GPU performs so much better ?

Can I make it even better?