At this point let the form factor be your guide, with the price differential between the ATX and MATX boards are right at $30, with the Z87M Gaming currently selling for $159. Overclocking the Z87M Gaming was just as easy as it was on the Z87-GD65, however I just could not get 4.7GHz fully stable on the Z87M Gaming. Maybe a little ring rust, but running the Z87-GD65 at 4.7GHz was just the same as when I reviewed it back in June of 2013. Memory overclocking with my Hynix MFR-based memory was just as easy with a quick push up to 2800MHz possible with some sub-timing tuning. However to get there the clock speed and ring ratio need to drop down to a max of 42 on my specific Core i7 4770K. A golden chip it is not.