Toppc, a member of Chinese overclocking forum Coolaler.com, has managed to get his hands on a pre-release Ivy Bridge-E CPU. This new CPU is the successor to the Sandy Bridge-E line of CPUs on Intel's LGA 2011 platform. It's widely expected to feature up to 12 cores and 30MB of L3 cache.
The results from the comprehensive benchmark suite show that the Ivy Bridge-E CPU is somewhere between 5 and 10 percent faster than the current generation Sandy Bridge-E processors. The benchmark suite included SuperPi mod 1.6, CPU Mark '99, WPrime 1.63, Cinebench 11.5, 3DMark Vantage (CPU score), and 3DMark 06 (CPU score).
The new line of Ivy Bridge-E CPUs are expected to launch towards the end of the second half of this year. They should be mostly drop-in compatible with current LGA 2011 systems, though you'll likely need a BIOS upgrade from your manufacturer.