More information has come to light about Intel's upcoming Xeon E5 and E7 series processors, among which are a number of specifications and a release timeframe.
The E5-2600/4600 V2 and E7-8800V2 CPUs have been detailed. The E5-2600 V2 family of CPUs will feature up to 12 cores with Hyperthreading, resulting in 24 threads. They will also carry 30 MB of L3 cache and have quad-channel DDR3-1866 memory support, per socket. They can also be run in dual-socket configurations. The chips that carry 12 cores and are clocked higher would have TDPs between 115 W and 130 W, while the lower clocked 10-core versions would have a TDP of only 70 W. All the chips will comfortably rest in the LGA 2011 socket on a C600 series chipset.
Beyond the E4-2600 chips, there are also the E5-4600 V2 chips. These chips will be similar to the E5-2600 series CPUs but instead have support for four-socket configurations. Clock speeds would swing around the 3 GHz mark.
Intel is also developing a new Ivy Bridge-EX family of CPUs to replace the Westmere EX series. The new Xeon E7-8800/4800/2800 V2 series of chips would comprise part of the high-end enterprise "Brickland" platform. The E7-8800 V2 chips would work in configurations that feature up to eight sockets and will feature 15 cores per CPU, along with Hyperthreading, resulting in 30 threads per socket. This platform would also be based on the C600 series chipset but would support more memory configurations. Beyond the expected ECC DDR3-1600 memory, the CPUs would also support DDR4-2133/2400/3200 memory.
The E5-2600 V2 chips are slated for a Q3 2013 release, while the E5-4600 chips are scheduled for a Q1 2014 release. The Xeon E7 family of enterprise-class CPUs are slated for a Q1 2014 release.