Updated to version 0.7.14 TeamRedMiner, in addition to optimizing work for all supported mining algorithms, can also offer the possibility of mining Ethereum cryptocurrency on video cards with 4Gb video memory beyond the 382 epoch - those up to epoch 400 and beyond. But with one big drawback - a drop in the hash rate on such video cards with each new era. If for the 382 epoch the drop is only 1.6%, then for the 400 epoch it will already be an impressive 78.8%. Until the 382 era, without a plethora of mining hashrates, it is possible only on Linux and with the following AMD drivers: 18.50, 19.30, 19.50, 20.10. For Windows, the last era without losing hashrate will be the 374 epoch. To enable this feature, TeamRedMiner has a new command "--eth_alloc_epoch = 381", i.e. starting from the 381 epoch, the miner will work according to a new algorithm with support for 4Gb video cards for epochs above 381.
More details about this functionality can be found in the ETHASH_4GB_HOWTO.txt file.
The drop table of the hashrate of 4Gb video cards from each new epoch, starting from 381
Epoch DAG MB DAG % Hashrate Loss %
381 4072 100.00% 59.30 0.0%
382 4080 99.95% 58.38 -1.6%
383 4088 99.76% 54.89 -7.4%
384 4096 99.56% 51.46 -13.2%
385 4104 99.37% 48.29 -18.6%
386 4112 99.17% 45.17 -23.8%
387 4120 98.98% 42.17 -28.9%
388 4128 98.79% 39.35 -33.6%
389 4136 98.60% 36.80 -37.9%
390 4144 98.41% 34.23 -42.3%
395 4184 97.47% 22.46 -62.1%
400 4224 96.54% 12.55 -78.8%
The hashrate is indicated here for two RX 470 4Gb Nitro + video cards with a hash rate of 29.3MH/s each, or 59.3MH/s for 2 video cards and 381 Ethereum mining epoch.
Thus, TeamRedMiner will slightly prolong the "agony" in mining 4gb video cards, which will allow them to stay in Ethereum mining until the beginning of 2021
You can download the latest version of TeamredMiner on Github