Heres my best settings for GTX 780
cudaminer.exe -i 0 -l K42x6 -C 2 -o stratum+tcp://yourpoolIP:port -O account:pass
Card runs 1150/1800 and gets avg 360kh/s
Interesting. I should also try to autotune the Kepler kernel on my 780 Ti. Maybe I get a few extra kHash/s out.
Did you allow 100% TDP, or more?
Your settings should scale to the 780 Ti as 15/12 * 360 kHash = 450 kHash according to the number of enabled SMX engines. But then of course there's also the thermal and power (TDP) limitation which can ruin the day.
Im running custom bios from overclock.net GTX780 forum topic. This allowes me way higher Power limit. With card at 1150/1800 1.13v i only have 55% of my power limit used. So TDP limit isnt any problem.
My card is Gigabyte WF3. So cooling is also no problem.