Features: 1.High-performance processor commonly used in servers, suitable for dominant frequency large-scale online games. 2.Made of high quality electronic components, stable and reliable performance. 3.4 cores and 8 threads, up to 3.7GHz clock speed, Turo up to 3.9GHZ. 4.Codenamed is for Ivy Bridge EP, a more advanced process LGA 2011 interface for motherboards of the X79 series, and servers. 5.Maximum memory is 256GB(depending on memory type). specification:Item Type: CPU Processor Product Modelfor Xeon E5-1620 v2 Seriesfor Xeon processor E5 series Interface TypeLGA 2011 Number of CoresQuad Core Number of Threads8 manufacturing technique22nm Core Voltage1.3V Dominant Frequency3.7GHz Turbo Boost TechnologySupport 2.0 Maximum Turbo Frequency3.9GHz Three-Level Buffer10M QPI Speed0GT/s, QPI links: 0 64-bit ProcessorYes Virtualization TechnologySupport Instruction Set SupportAVX Hyper-Threading TechnologySupport Thermal Design Power130W Other PerformanceMaximum memory size (depending on memory type): 256GB Memory type: DDR3-800 / 1066 / 1333 / 1600 / 1866 Number of memory channels: 4 Maximum memory bandwidth: 59.7GB/s Physical address extension: 46-bit Maximum CPU configuration: 1 TCASE: 70 °C Package size: 52.5 x 45mm PackageList:1 x CPU Processor Note1. Product Status: Seller refurbished, PULLED FROM WORKING ENVIRONMENT 2. This product only supports server memory ECC REC, conventional memory does not support. 3. Only support the motherboard and server motherboard of LGA2011 interface. 4. Not in the scope of warranty: Excessive overclocking does not start the machine is not covered by the warranty, the CPU looks badly worn, exposed copper, metal scratches! Please players and friends carefully overclocked, so as not to affect the warranty.