What GPUs are you running on Einstein? Nvidia has an advantage right now because Beta (CUDA only) work units finish faster than regular WUs, but I see only a marginal benefit in credits/watt on current generation Nvidia cards versus Tahiti AMD cards. The only real outlier in my fleet is the 750 Ti, which is about 25% more efficient than a 280X. This table is based on non-beta work units:
GPU |
WU Avg Completion Time |
WU Value |
Credits/Day |
TDP |
Credit/Day per Watt |
GTX 750Ti x2 |
16780 |
4400 |
45311 |
60 |
755 |
GTX 960 x3 |
16900 |
4400 |
67484 |
120 |
562 |
GTX 970 x2 |
8260 |
4400 |
92048 |
145 |
635 |
7970 x4 |
10700 |
4400 |
142116 |
250 |
568 |
R9 280X x4 |
9960 |
4400 |
152675 |
250 |
611 |