Intel Xeon E3-1275v3

GeneralBrandIntelSeriesIntel Xeon E3 FamilyModelBX80646E31275V3CPU Socket TypeCPU Socket TypeLGA 1150Tech SpecCore NameHaswellMulti-CoreQuad-CoreNameIntel Xeon E3-1275V3Operating Frequency3.5GHzL3 Cache8MBManufacturing Tech22 nm64-Bit SupportYesHyper-Threading SupportYesIntegrated Memory Controller SpeedDDR3-1600Virtualization Technology SupportYesIntegrated GraphicsYesThermal Design Power95W

Intel Xeon E3-1280v3

Intel Xeon E5-2620

GeneralBrandIntelSeriesIntel Xeon E5 FamilyModelBX80621E52620CPU Socket TypeCPU Socket TypeLGA 2011Tech SpecCore NameSandy Bridge-EPMulti-CoreSix-CoreNameXeon E5-2620Operating Frequency2.0GHz (2.5GHz Turbo Boost)QPI7.20 GT/sL3 Cache15MBManufacturing Tech32 nm64-Bit SupportYesHyper-Threading SupportYesIntegrated Memory Controller SpeedSupports up to 4 Channels DDR3-1333 MemoryVirtualization Technology SupportYesVoltage0.60V-1.35VThermal Design Power95WCooling DeviceCooling device not included - Processor OnlyManufacturer WarrantyParts3 years limitedLabor3 years limited

Intel Xeon E5-2620v2