The Sandy Bridge processors are not significantly faster than the Nehalems, and they only have dual-channel memory.

Hopefully, the HUGE performance boost will be with the 8-core/22nm "Ivy Bridge" processors. I am curious if any official information is available about the "X68" chipset. What are some of the new features on this chipset? I heard rumors of PCIe 3.0 x32, more than twice the QPI speed, and even quad-channel memory.

I would imagine the 3rd generation of DX11 graphics cards from ATI and Nvidia will be available by then.

Hopefully, the Ivy Bridge processors will offer a performance boost similar to going from a C2Q to a Nehalem.