The boards are first measured to ensure accuracy of CLK. In CPUZ test, we see that the CLK of the Gigabyte GA-965P-DQ6 is at 266.7 while the ASRock 4CoreDual-VSTA is at 266.1MHz.

In the tests to follow, the Gigabyte board is ran with 2GB of Corsair DDR2 running at CAS 5, 5-5-18 DDR2-800 mode while the ASRock 4CoreDual-VSTA will run in DDR mode with 1GB of Corsair memory at CAS 2, 2-2-5, 1T cmd and in DDR2 mode, it is run with the same pair of DDR2 modules (2GB) running at CAS 3, 3-3-8, 1T cmd DDR2-533.

As we can see from the chart below, running the DDR400 memory module gives us a lower memory score while running the DDR2 module at CAS 3, 3-3-8, 1T gives a better rating when run in CAS 5, DDR2-800 on the intel 965p chipset.