BB official C7 test farm with just 350TiBe added +50W due GPU overhead (RTX 3060Ti). According to BB simulations, it should handle 1.2PiBe…no idea how GPU wattage scales…my guess is, it will run flat out + ~100W
GH C5 was the most efficient for me just with CPU.
BB C5 still crap for Ryzen 9 3950X @ 4GHz. GPU still uses +50Wh
BB C4 the best solution for me, running happily on old E5-1275v3. About 400TiBe replotted, and I still see no wattage increase on 1PiB farm.
If you pay for electricity the usual European price ~0.3$/kWh…forget about GPU farming.
Correct, but how much better would require a bit more knowledge on exactly how the compression is being done to know how much more expensive a full proof lookup is vs a quality lookup. I believe for GH C6-9 that full proofs were 4x more costly than quality lookups, but as compression goes up this difference gets smaller. Hopefully more details regarding that are released sometime soon.