Those temps on the R9 290X are definitely Titan beating and I also don't think the 290X is going to scare the GTX 780 in the overclocking stakes either.
The other thing to remember for benching a single card is the 4770k will give a nice efficiency bonus over a 3930k.
Spot on Kaap. Card for card and clock for clock, the X79 boards are poor compared to their Z brothers.