The current speeds in the x17 beta mod:
gtx 1060 9MHASH
gtx 1070 12.5MHASH
gtx 1070ti 14MHASH
gtx 1080ti 21MHASH
I see improvement on all my cards compared to the fastest opensource miners.
Some cards have around +5% and other cards have more.
Not decided what to do with the mod yet. I need to add another 5%. Alot of code, so I think It can be done with more work.
1080Ti does >20 now at 100% TDP, if I go the lock @ lower voltage and higher speed way I'll pull even more. And that with -i 20.
Most of my 1070Tis do well over 13, and I' haven't pushed them to their limits. Not sure this is worth it.