Template:mpu The Xeon E5-4640 v4 is a 64-bit dodeca-core x86 microprocessor introduced by Intel in 2016. This server MPU is designed for standard 4S environments. Operating at 2.1 GHz with a turbo boost frequency of 2.6 GHz for a single active core, this MPU has a TDP of 105 W and is manufactured on a 14 nm process (based on Broadwell).