Essentials
Product CollectionIntel® Xeon® Processor E7 FamilyCode NameProducts formerly Westmere EXVertical SegmentServerProcessor NumberE7-4820StatusDiscontinuedLaunch DateQ2'11Expected DiscontinuanceQ3'2015Lithography32 nm
Performance
# of Cores8# of Threads16Processor Base Frequency2.00 GHzMax Turbo Frequency2.27 GHzCache18 MB SmartCacheBus Speed5.86 GT/s QPITDP105 W
Memory Specifications
Max Memory Size (dependent on memory type)2.05 TBMemory TypesDDR3 800/978/1066/1333 (Max Speed 1066 MHz)Max # of Memory Channels4ECC Memory Supported ‡Yes
Expansion Options
ScalabilityS4S
Package Specifications
Sockets SupportedLGA1567Max CPU Configuration4TCASE64°CPackage Size49.17mm x 56.47mmLow Halogen Options AvailableSee MDDS
Advanced Technologies
Intel® Turbo Boost Technology ‡1.0Intel® Hyper-Threading Technology ‡YesIntel® Virtualization Technology (VT-x) ‡YesIntel® Virtualization Technology for Directed I/O (VT-d) ‡YesIntel® VT-x with Extended Page Tables (EPT) ‡YesIntel® 64 ‡YesInstruction Set64-bitInstruction Set ExtensionsIntel® SSE4.1, Intel® SSE4.2Enhanced Intel SpeedStep® TechnologyYesThermal Monitoring TechnologiesYes
Security & Reliability
Intel® AES New InstructionsYesIntel® Trusted Execution Technology ‡YesExecute Disable Bit ‡Yes
