I'm getting ~250 khash/s on a stock reference GTX 570.
cudaminer.exe -C 2 -i 0 -H 0 -l F15x16
Can't use your settings on EVGA GTX 750ti 2gb ram stock with fan
246 khash - with cuadminer -H2 -i 0 -l T5x24 -C 1 -m 1 (hashes are plus or minus but the average is 246 and higher) T5 x 24 highest you can go - stable here
240 khash - with cuadminer -H2 -i 0 -l T5x24 -C 2 -m 1 (hashes are plus or minus but the average is 241 and lower) stable
228 khash - with cuadminer -H2 -i 0 -l T5x16 -C 1 -m 1 (hashes are plus or minus but the average is 228 and lower) stable
2700 khash - with cuadminer -H2 -i 0 -l T5x32 -C 1 -m 1 (hashes are plus or minus but the average is 2500 and lower) unstable
2700 khash - with cuadminer -H2 -i 0 -l T5x32 -C 1 (hashes are plus or minus but the average is 2500 and lower) unstable
now using ccminer-x64 v1.7
4100 kh (1.9 mh) Qubit
2666 kh X11