I am currently running two 150 gb velociraptors in RAID 0 using the on-motherboard sata II connectors. I believe that I read somewhere that using a RAID controller that plugs into the PCI-E 2.0 slots actually increases read/write performance. Is this true?
This is my current read/write performance while reading and writing a 1000 mb file 9 times, using the onboard controller:
