Replacing Everest in our labs is AIDA64. This new testing suite is from the core development team from Lavalys and continues that tradition. The guys have thrown in better support for multithreaded CPUs as well as full 64 bit support. We use this to test memory and HDDs for now, but may find ourselves opening this up to other areas of the motherboard.
Out of the box both the MSI and ASRock boards perform very similar to each other. When we threw OC Genie II into the mix we see a nice boost in overall performance thanks to that 4.2GHz clock. Where we see the board really shine, though, is at that massive 5.35GHz clock speed which blows everything else out of the water.