Intel Sandy Bridge-based Xeon microprocessors (often referred to asSandy Bridge-E^[1]) are microprocessors based on theIntel's32 nmSandy Bridge architecture for servers, workstations, and high-end desktops. It succeeds the six-coreGulftown/Westmere-EP processor which used the olderLGA 1366 package, and usesLGA 2011,LGA 1356 andLGA 1155 socket depending on the package.

There are five different families of Xeon processors that were based on Sandy Bridge architecture:

• Sandy Bridge-E (LGA 2011) targeted high-end desktop (HEDT) enthusiast segment. It was branded asCore i7 Extreme Edition andCore i7 processors, despite sharing many similarities with Xeon models.
• Sandy Bridge-EP (LGA 2011) branded as Xeon E5 models aimed at high-end servers and workstations. It supported motherboards equipped with up to 4 sockets.
• Sandy Bridge-EN (LGA 1356) uses a smaller socket for low-end and dual-processor servers on certain Xeon E5 and Pentium branded models.
• Sandy BridgeXeon (LGA 1155) were mostly identical to its desktop counterparts apart from the missingIGPU despite branded as Xeon E3 processors.
• Gladden (BGA 1284) Xeon E3 models were for embedded applications.

IGPU is absent on most of these processors unless noted otherwise.

All models support:MMX,SSE,SSE2,SSE3,SSSE3,SSE4.1,SSE4.2,AVX, Enhanced IntelSpeedStep Technology (EIST),Intel 64, XD bit (anNX bit implementation),TXT,Intel VT-x,Intel EPT,Intel VT-d,Intel VT-c,^[2]Intel x8 SDDC,^[3]Hyper-threading (except E5-1603, E5-1607, E5-2603, E5-2609 and E5-4617),Turbo Boost (except E5-1603, E5-1607, E5-2603, E5-2609, E5-4603 and E5-4607),AES-NI, Smart Cache.

• All models support:MMX,SSE,SSE2,SSE3,SSSE3,SSE4.1,SSE4.2,AVX, Enhanced IntelSpeedStep Technology (EIST),Intel 64, XD bit (anNX bit implementation),TXT,Intel VT-x,Intel EPT,Intel VT-d,Intel VT-c,^[4]Intel x8 SDDC,^[5]Hyper-threading (except E5-2403 and E5-2407),Turbo Boost (except E5-1428L, E5-2403 and E5-2407),AES-NI, Smart Cache.

• All models support:MMX,SSE,SSE2,SSE3,SSSE3,SSE4.1,SSE4.2,AVX, Enhanced IntelSpeedStep Technology (EIST),Intel 64, XD bit (anNX bit implementation),TXT,Intel VT-x,Intel EPT,Intel VT-d,Hyper-threading (except E3-1220 and E3-1225),Turbo Boost,AES-NI, Smart Cache.
• All models support uni-processor configurations only.
• Intel HD Graphics P3000 uses drivers that are optimized and certified for professional applications, similar toNvidia Quadro andAMD FirePro products.
• Die size: D2: 216 mm², Q0: 131 mm²
• Steppings: D2, Q0

• BGA 1284 package
• All models support:MMX,SSE,SSE2,SSE3,SSSE3,SSE4.1,SSE4.2,AVX, Enhanced IntelSpeedStep Technology (EIST),Intel 64, XD bit (anNX bit implementation),TXT,Intel VT-x,Intel EPT,Intel VT-d,Hyper-threading,AES-NI.
• All models support uni-processor configurations only.
• Die size:216 mm²
• Steppings: D2

• List of Intel chipsets
• List of Intel CPU microarchitectures

• Kanter, David (2011-07-28)."Sandy Bridge for Servers".RealWorldTech.com. Retrieved2020-08-09.

• Intel microprocessors

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• Short description matches Wikidata