Intel is preparing a new 15-core Xeon CPU, which will feature 4.31 billion transistors, a 3.8GHz Turbo Frequency, 155W TDP, 40 PCIe lanes, and will join the Xeon E7 line-up. This means we can expect the new native 15-core processor to be joined by seven other CPUs for a total of eight CPUs, with Hyper-Threading thrown into the mix we can expect up to 240 threads being capable thanks to this new processor. The new Ivy Bridge-EX processor will feature 15 cores/30 threads, 37.5MB of L3 cache, will support DDR3-1600MHz RAM and most likely come in at over $5000 when it lands.
The new 15-core CPU will use the LGA2011 socket and arrive as the Xeon E7-8890 v2 CPU, we will see 8 members in the Xeon E7-8xxx v2 range.
Source: Intel preparing native 15-core Xeon processor | TweakTown