This is an example table with 2 x Nitro+ 470 4GBs mining at 29.65 MH/s
each at full speed, i.e. 59.30 MH/s total, having 4078MB of DAG buffer
space available. Power draw will stay roughly the same, so your
efficiency will take about the same hit as the hashrate.
Epoch DAG MB DAG % Hashrate Loss % ~date (https://minerstat.com/dag-size-calculator) 381 4072 100.00% 59.30 0.0% 10th Dec 2020 382 4080 99.95% 58.38 -1.6% 14th Dec 2020 383 4088 99.76% 54.89 -7.4% 18th Dec 2020 384 4096 99.56% 51.46 -13.2% 21st Dec 2020 385 4104 99.37% 48.29 -18.6% 25th Dec 2020 386 4112 99.17% 45.17 -23.8% 29th Dec 2020 387 4120 98.98% 42.17 -28.9% 2nd Jan 2021 388 4128 98.79% 39.35 -33.6% 5th Jan 2021 389 4136 98.60% 36.80 -37.9% 9th Jan 2021 390 4144 98.41% 34.23 -42.3% 13th Jan 2021 395 4184 97.47% 22.46 -62.1% 16th Jan 2021 400 4224 96.54% 12.55 -78.8% 20th Jan 2021