Xeon E5-2640 is a server/workstation processor from Intel released on 6 March 2012, and it is in cpu.details.production-unknown now. It belongs to Xeon E5 family and has a Sandy Bridge-EP architecture. This processor is built on Intel Socket 2011, and uses Gen 3 PCI express connection. 32 nm process is used in production.
Processor has 6 cores and 12 threads, with the base frequency of 2.5 GHz. It has DDR3 Quad-channel memory support. As for the cache, it supports L1 64K (per core), L2 256K (per core) and L3 15MB (shared).