You CAN run the XMP settings on an AMD machine, you just have to copy them down from CPU-z and manually enter them into the BIOS. I've done that with some G-Skill modules on a Crosshair3. But the thing is that the JEDEC settings often work better anyway. Plus AMD chips usually work better with fast memory that's not at full speed, but downclocked with tighter timings.
AMD clocking has to work differently from Intel to work with the different chip design.
Keep the HTlink around 2Ghz, overclock the NB a bit, lower the memory speed and find some super low timing settings that work reliably, and you've got a nice fast machine.
Intel i7-2600k with an XSPC Raystorm water block, 4x4GB Corsair Dominator, SLi Evga-GTX560Ti-448 FTWs, Asrock Extreme4 Gen3, Crucial M4 256GB SSD, Samsung Spinpoint F3 1TB HDD, powered by a Silverstone Strider+ 850 PSU in a Silverstone TJ-07BW case.
I'm not buying EK GPU blocks ever again. (One GPU killed)