Alongside the ASRock Fatal1ty X79 Champion that will be running at stock and overclocked, we've also got the cheaper ASRock X79 Extreme4. Alongside these two X79 boards we've got a three Z77 offerings including the ASUS Maximus V GENE, GIGABYTE Z77X-UD4H and finally the ASRock Z77 OC Formula.
Before we get into the performance we'll cover how we went with overclocking. We headed into the BIOS and started to tinker with the settings to see just what we could get out of the particular i7 3970X Extreme Edition CPU we have on hand.
We know that it's good for around the 4.7GHz mark. Sometimes that's achieved via a 47x multiplier and other times we get it via a 46x multiplier and a bit of a bump in the BCLK department.
Looking above you can see we managed to run a 47x multiplier alongside a slightly increased BCLK of 101 bringing our CPU speed in at 4746MHz or 4.75GHz, as illustrated in our graphs here today. This is a fairly standard clock speed and seems to be the limitation of our particular CPU.