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Team Red Miner v0.8.0
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@Kerney666 Kerney666 released this 18 Jan 19:09
· 67 commits to master since this release
0.8.0
c312fad

Team Red Miner v0.8.0

Biggest release in a long while with rewritten ethash kernels and new mining modes for all gpu types!

Users are highly(!) recommended to take a few minutes to read the 0.7-to-0.8 migration guide and the new ethash tuning guide.

Key highlights:

  • Polaris: Efficiency and slight hashrate increase. B-mode reintroduced for added hash. B-mode must be enabled with --eth_aggr_mode or --eth_config=Bxxx.

  • Vega 56/64: greatly improved base kernel for efficiency. New B-mode that can shave off additional 1-2W on top of the A-mode kernel. B-mode must be enabled manually with --eth_config (--eth_aggr_mode does not apply). Tuning numbers have changed - do NOT keep your old static --eth_config values.

  • Radeon VII: huge boost with its new C-mode but requires a special Linux setup. Can now do 100 MH/s on most air cooled VIIs. See tuning guide.

  • 5700/5700XT: can shave off as much as 8-9W(!) of power using the new B-mode and dropping core clk+voltage. B-mode now the default mining mode. Unless you retune your core clk+voltage you will see a tiny power draw increase instead and not benefit from the upgrade, so read the migration guide.

  • 5600XT: new B-mode has a much smaller effect. A-mode remains the default mining mode. See new tuning guide for more details.

  • The dag cache is NOT compatible with the new B/C-modes. ETH+ZIL switchers have to choose between caching the epoch 0 dag and using the new mining modes.

  • Ethash 4GB kernels NOT rewritten in this release, performance remains the same as in 0.7.x.

Example performance differences between 0.7.21 and 0.8.0:

Polaris
Nitro+ 580 8GB Samsung, core 1150@840mV, mem 2100@840mV, ref 30

Version Mode Tuning Hashrate Power Diff vs 0.7.21
0.7.21 A-mode A256 30.73 MH/s sensor 79.66W
0.8.0 A-mode A194 30.97 MH/s sensor 78.25W -1.41W
0.8.0 B-mode B232 31.13 MH/s sensor 78.77W -0.89W

Vega 56/64
Vega 56 ref Samsung, A-mode 1065@850mV, B-mode 1000@850mV, mem 950@850mV, TRM timings

Version Mode Tuning Hashrate Power Diff vs 0.7.21
0.7.21 A-mode A872 50.08 MH/s sensor 115.98W
0.8.0 A-mode A448 50.32 MH/s sensor 111.15W -4.83W
0.8.0 B-mode B450 50.31 MH/s sensor 110.15W -5.83W

Radeon VII
Radeon VII Hynix, core 1600MHz@881mV, mem 1000MHz with timings

Version Mode Tuning Hashrate Power Diff vs 0.7.21
0.7.21 B-mode B740 87.87 Mh/s sensor 185.25W
0.8.0 B-mode B208 87.85 Mh/s sensor 177.38W -7.87W
0.8.0 C-mode C322 100.4 Mh/s sensor 192.54W +7.29W +12.53Mh/s

5700/5700XT
Red Devil 5700XT Micron A-Mode 1400@725mV, B-Mode 1245@675mV, Mem 912 MHz

Version Mode Tuning Hashrate Power Diff vs 0.7.21
0.7.21 A-mode A624 56.05 MH/s sensor 105.82W
0.8.0 A-mode A620 56.08 MH/s sensor 103.61W -2.21W
0.8.0 B-mode B608 56.01 MH/s sensor 96.83W -8.99W
Assets 4
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