As always we won't go into any real detail on the testbed side of things as everything is covered above.
Quickly, though, we'll cover the boards that will be included in our graphs today which of course include the ASRock H77 Pro4/MVP. Alongside that we've got some Z77 boards including the ASRock Z77 OC Formula, ASRock Z77 Extreme11, ASUS Maximums IV GENE and finally an X79 based ASRock X79 Extreme4 to round off the collection.
As always before we get into the benchmarking side of things we cover the overclocking side. When we looked at the differences between the H77 and Z77, one of the options that is listed as not available on the H77 is "CPU Performance Tuning". We didn't pay too much attention to that as we saw the ability to adjust the multiplier in the BIOS. We just couldn't see an option to adjust the BCLK. Since most of our overclocking is done via the multiplier anyway, we didn't think it was that big a deal.
Heading into the BIOS to adjust the multiplier we hit the + button a few times and hit a wall at 39x or 3.9GHz - the Turbo speed of the 3770K. There's really no ability to go any higher. Because of that we simply left it at that and decided to just bench at the normal out of the box settings.