Test System Specs & Memory Performance

Test System Specs
- Intel Core i7 2600K
- x4 2GB G.Skill DDR3 PC3-12800 (CAS 8-8-8-20)
- Asus P8P67 Deluxe (Intel P67)
- Asrock P67 Extreme6
- ECS P67H2-A2
- Gigabyte P67A-UD7
- MSI P67A-GD55
- OCZ ZX Series 1250w
- Crucial RealSSD C300 256GB (SATA 6Gb/s)
- GeForce GTX 580 (1536MB)
- Microsoft Windows 7 Ultimate 64-bit
- Nvidia Forceware 267.71

The memory bandwidth performance was as expected when testing with AIDA64 Extreme Edition as all five P67 motherboards produced similar results. All boards were tested with the same DDR3-1600 memory which was manually set to the same CAS8-8-8-20 timings.

Interestingly the only motherboard to show slightly weaker L2 Cache performance was the Asrock P67 Extreme6. Given that this test should only focus on the CPU it is strange how the Asrock board was consistently slower here.