With an unlocked K-series processor, breaking the 4GHz barrier is no sweat for these P67 motherboards. In fact, all but the MSI P67A-GD55 were able to surpass 4.6GHz with the Asus P8P67 Deluxe maxing out at 4692MHz followed by the Gigabyte P67A-UD7 at 4646MHz. We were impressed to find that even the ECS P67H2-A2 reached 4600MHz. The results were astounding to say the least.
