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Minimum Order Quantity: 1 pcs
Packaging Details: Tray Package/ Safe Material Packging
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Price:
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General information
Type CPU / Microprocessor
Market segment Server
Family
Intel Xeon E3-1200 v3
Model number
E3-1281 v3
CPU part numbers
  • CM8064601575329 is an OEM/tray microprocessor
  • CM8064601575381 is an OEM/tray microprocessor
Frequency 3700 MHz
Turbo frequency 4100 MHz (1 core)
3900 MHz (all cores)
Bus speed 5 GT/s DMI
Clock multiplier 37
Package 1150-land Flip-Chip Land Grid Array
Socket Socket 1150 / H3 / LGA1150
Size 1.48" x 1.48" / 3.75cm x 3.75cm
Introduction date May 11, 2014
Price at introduction $612
S-spec numbers
Part number ES/QS processors Production processors
  QFFJ SR1R2 SR21F
CM8064601575329   + +
CM8064601575381 +    
Architecture / Microarchitecture
Microarchitecture Haswell
Platform Denlow
Processor core Haswell LGA1150
Core stepping C0 (QFFJ, SR1R2, SR21F)
Manufacturing process 0.022 micron
Data width 64 bit
The number of CPU cores 4
The number of threads 8
Floating Point Unit Integrated
Level 1 cache size 4 x 32 KB 8-way set associative instruction caches
4 x 32 KB 8-way set associative data caches
Level 2 cache size 4 x 256 KB 8-way set associative caches
Level 3 cache size 8 MB 16-way set associative shared cache
Physical memory 32 GB
Multiprocessing Uniprocessor
Features
  • 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
  • AVX2 / Advanced Vector Extensions 2.0
  • BMI / BMI1 + BMI2 / Bit Manipulation instructions
  • F16C / 16-bit Floating-Point conversion instructions
  • FMA3 / 3-operand Fused Multiply-Add instructions
  • TSX / Transactional Synchronization Extensions
  • EM64T / Extended Memory 64 technology / Intel 64
  • NX / XD / Execute disable bit
  • HT / Hyper-Threading technology
  • TBT 2.0 / Turbo Boost technology 2.0
  • VT-x / Virtualization technology
  • VT-d / Virtualization for directed I/O
  • TXT / Trusted Execution technology
Low power features
  • Core C1/C1E, C3 and C6 states
  • Package C1/C1E, C3 and C6 states
  • Enhanced SpeedStep technology
Integrated peripherals / components
Integrated graphics None
Memory controller The number of controllers: 1
Memory channels: 2
Supported memory: DDR3-1333, DDR3-1600
DIMMs per channel: up to 2
Maximum memory bandwidth (GB/s): 25.6
ECC supported: Yes
Other peripherals
  • Direct Media Interface 2.0
  • PCI Express 3.0 interface
Electrical / Thermal parameters
Thermal Design Power 82 Watt
Notes on Intel Xeon E3-1281 v3
  • The processor has the following security, data protection and/or software features: Intel Secure Key, vPro technology, Identity Protection technology, OS Guard and Anti-Theft technology.