Overclocking
We're going to be using the same CPU to overclock upcoming Z87 boards. Our Core i7-4770K managed to run at 4.375GHz (35*125MHz) with 1.25V. The limitation seems to be more of a heat/yield issue with the chip than any obvious problems associated with the Gigabyte board.
Is it worth overclocking the 4770K processor? You receive a 10 per cent performance boost in the two CPU-related benchmarks but not even three per cent in GPU-limited 3DMark.