Template:mpu The Xeon E5-1660 v4 is a 64-bit octa-core x86 microprocessor introduced by Intel in 2016. This server MPU is designed for 1S workstations. Operating at 3.2 GHz with a turbo boost frequency of 3.8 GHz for a single active core, this MPU has a TDP of 140 W and is manufactured on a 14 nm process (based on Broadwell).