FX-4120 is a desktop processor from AMD released on 23 October 2012, and it is in cpu.details.production-unknown now. It belongs to FX family and has a Zambezi architecture. This processor is built on AMD Socket AM3+, and uses Gen 2 PCI express connection. 32 nm process is used in production.
Processor has 4 cores and 4 threads, with the base frequency of 3.9 GHz. It has DDR3 Dual-channel memory support. As for the cache, it supports L1 192K, L2 4MB and L3 8MB (shared).