I haven't been mining XMR on the 750TI for a while now, but I could bet that cayar's release (NVMiner) is the fastest (that, or some earlier release from TSIV, not the latest one). My cards (slightly overclocked) were easily reaching 275h/s, so those values posted don't look quite right.
~ Myagui
Hmmm. I may have to give that a shot. I will let you know what happens.
B