Yep I'm pleasantly surprised with it. I have it running at 1200Mhz on the stock cooler and it doesn't even get that loud, ~2300rpm.I felt terrible after i sold my 290X and popped in a 780Ti, i expected a noticeable increase in performance, but what i got was the same performance.
On the plus side the build quality of the 780Ti is incredible, felt extremely well made, looks epic and runs quiet.