HPE Xeon E5-4667 V3 Processor 2 GHZ 40 MB L3

Intel® Hyper-Threading Technology
Intel® Hyper-Threading Technology provides two processing threads per physical core. In applications with a high number of threads, more data can be processed simultaneously, completing tasks faster.

Inactive statuses
When the processor is idle, Idle States (C-states) are used to reduce power consumption. C0 is the running state, meaning the CPU is active. C1 is the first idle state, C2 is the second, and so on. The higher the C-state, the more power reduction measures are taken.

Enhanced Intel SpeedStep® Technology
Enhanced Intel SpeedStep® Technology is an advanced technology that delivers high performance while addressing the power conservation needs of mobile systems. With conventional Intel SpeedStep® Technology, both voltage and frequency are switched up or down to accommodate changing processor workloads. Enhanced Intel SpeedStep® Technology builds on this architecture with design strategies such as separate voltage and frequency switching, and clock partitioning and recovery.