Disk Drive Controller
The system drive controller is an important part of system performance. In most modern boards your drive controller will run off of the PCI-e bus. The PCI-e bus performance can be affected by poor trace layout as well as many other design choices that show up on different boards.
For testing we use Sisoft's Sandra and Everest.
As we have mentioned before, the AMD SB850 has slightly slower HDD performance than Intel's ICH10 or even the external Marvell SATA 3.0 controller.
USB 3.0 performance is pretty much identical to the Intel boards as everyone is using the same NEC based solution.
Again the same numbers pop-up through our Everest testing.