below is a quote from the ewbf_ thread a guy has an 11 card rig nailed max smoking and he gets more sols per card but look at power used
Thanks to EWBF for the 0.3.4b update, here are my updated benchmarks (not yet optimised):
11 x 1080 Ti FE
Ubuntu 16.04.2 LTS
NVIDIA Driver Version 381.22
EWBF's Zcash CUDA miner. 0.3.4b
+-------------------------------------------------+
| EWBF's Zcash CUDA miner. 0.3.4b |
+-------------------------------------------------+
INFO: Current pool:
INFO: Selected pools: 1
INFO: Solver: Auto.
INFO: Devices: All.
INFO: Temperature limit: 90
INFO: Api: Disabled
---------------------------------------------------
---
CUDA: Device: 0 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 1 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 2 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 3 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 4 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 5 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 6 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 7 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 8 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 9 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 10 GeForce GTX 1080 Ti, 11172 MB i:64
CUDA: Device: 0 Selected solver: 2
CUDA: Device: 2 Selected solver: 2
CUDA: Device: 4 Selected solver: 2
CUDA: Device: 1 Selected solver: 2
CUDA: Device: 3 Selected solver: 0
CUDA: Device: 5 Selected solver: 0
CUDA: Device: 9 Selected solver: 2
CUDA: Device: 6 Selected solver: 2
CUDA: Device: 7 Selected solver: 2
CUDA: Device: 8 Selected solver: 2
CUDA: Device: 10 Selected solver: 0
---
Temp: GPU0: 42C GPU1: 43C GPU2: 39C GPU3: 42C GPU4: 48C GPU5: 45C GPU6: 41C GPU7: 49C GPU8: 44C GPU9: 41C GPU10: 46C
GPU0: 751 Sol/s GPU1: 731 Sol/s GPU2: 749 Sol/s GPU3: 758 Sol/s GPU4: 737 Sol/s GPU5: 762 Sol/s GPU6: 748 Sol/s GPU7: 760 Sol/s GPU8: 738 Sol/s GPU9: 755 Sol/s GPU10: 742 Sol/s
Total speed: 8231 Sol/s
+-----+-------------+--------------+
| GPU | Power usage | Efficiency |
+-----+-------------+--------------+
| 0 | 280W | 2.68 Sol/W |
| 1 | 271W | 2.70 Sol/W |
| 2 | 273W | 2.74 Sol/W |
| 3 | 275W | 2.76 Sol/W |
| 4 | 271W | 2.72 Sol/W |
| 5 | 273W | 2.79 Sol/W |
| 6 | 278W | 2.69 Sol/W |
| 7 | 286W | 2.66 Sol/W |
| 8 | 272W | 2.71 Sol/W |
| 9 | 271W | 2.79 Sol/W |
| 10 | 271W | 2.74 Sol/W |
+-----+-------------+--------------+
---
dude why are you wasting so much power?
i get 630sol with 149 watts 4.1 or more on my 1080ti's
here is a four card rig 2x 1070 2x 1080ti
a riser 1070 left 2 1080 ti slots a slot 1070 right


my gear is all better then 4 sols a watt. 2 of my 1080 ti's add up to 290 watts and do 1226 sols
you are spending 287 watts with one piece and getting 750 sols so 3 watts more for my setup gets 476 extra sols
