Xeon Phi 3120P is a server/workstation processor from Intel released on 17 June 2013, and it is in cpu.details.production-unknown now. It belongs to Xeon Phi family and has a Knights Corner architecture. This processor is built on PCIe x16, and uses unknown PCI express connection. 22 nm process is used in production.
Processor has 57 cores and 228 threads, with the base frequency of 1100 MHz. It has DDR3, DDR4 memory support. As for the cache, it supports L1 32K (per core) and L2 512K (per core).