Frequency
3.4 GHz / 3400 MHz
Maximum turbo frequency
4 GHz / 4000 MHz
Bus speed8 GT/s QPI (4000 MHz)
5 GT/s Direct Media Interface
Clock multiplier34
Package2011-land Flip-Chip Land Grid Array
SocketSocket 2011 / LGA2011
Size2.07" x 1.77" / 5.25cm x 4.5cm
Architecture / Microarchitecture
Instruction setx86
MicroarchitectureIvy Bridge
PlatformRomley-EP
Romley-WS
Processor coreIvy Bridge-EP
Core stepping
M1
CPUIDs
306E4
Manufacturing process0.022 micron
Data width
64 bit
The number of CPU cores8
The number of threads
16
Floating Point UnitIntegrated
Level 1 cache size8 x 32 KB 8-way set associative instruction caches
8 x 32 KB 8-way set associative data caches
Level 2 cache size8 x 256 KB 8-way set associative caches
Level 3 cache size25 MB 20-way set associative shared cache
Physical memory768 GB (per socket)
MultiprocessingUp to 2 processors
Extensions & Technologies
  • MMX instructions
  • SSE / Streaming SIMD Extensions
  • SSE2 / Streaming SIMD Extensions 2
  • SSE3 / Streaming SIMD Extensions 3
  • SSSE3 / Supplemental Streaming SIMD Extensions 3
  • SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4
  • AES / Advanced Encryption Standard instructions
  • AVX / Advanced Vector Extensions
  • F16C / 16-bit Floating-Point conversion instructions
  • EM64T / Extended Memory 64 technology / Intel 64
  • HT / Hyper-Threading technology
  • VT-x / Virtualization technology
  • VT-d / Virtualization for directed I/O
  • TBT 2.0 / Turbo Boost technology 2.0
Security Features
  • NX / XD / Execute disable bit
  • TXT / Trusted Execution technology
Low power featuresEnhanced SpeedStep technology
Integrated Graphics Processing Unit
None 
Integrated peripherals / components
Memory controller
The number of controllers: 1
Memory channels (per controller): 4
Memory channels (total): 4
Supported memory: DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600, DDR3-1866
ECC supported: Yes
Other peripherals
  • Direct Media Interface 2.0
  • Quick Path Interconnect (2 links)
  • PCI Express 3.0 interface
Electrical / Thermal parameters
V core0.65V - 1.3V
Minimum/Maximum operating temperature5°C - 72°C
Thermal Design Power150 Watt
Package List ； 1Pcs  E5 2687W V2 CPU