General information
Type CPU / Microprocessor
Market segment Desktop
Family Intel Core i7
Model number i7-3820
CPU part numbers CM8061901049606 is an OEM/tray microprocessor
BX80619I73820 is a boxed microprocessor
Frequency 3600 MHz
Turbo frequency 3900 MHz
Bus speed 5 GT/s DMI
Clock multiplier 36
Package 2011-land Flip-Chip Land Grid Array
Socket Socket 2011 (LGA2011)
Size 2.3" x 2.01" / 5.85cm x 5.1cm
Introduction date February 12, 2012
S-spec numbers
Production processors
Part number SR0LD
BX80619I73820 +
CM8061901049606 +
Architecture / Microarchitecture
Microarchitecture Sandy Bridge
Processor core Sandy Bridge-E
Core stepping M1 (SR0LD)
Manufacturing process 0.032 micron Hi-K metal gate process
Data width 64 bit
The number of cores 4
The number of threads 8
Floating Point Unit Integrated
Level 1 cache size 4 x 32 KB instruction caches
4 x 32 KB data caches
Level 2 cache size 4 x 256 KB
Level 3 cache size 10 MB
Physical memory 32 GB
Multiprocessing Uniprocessor
  • MMX instruction set
  • SSE
  • SSE2
  • SSE3
  • Supplemental SSE3
  • SSE4.1
  • SSE4.2
  • AES instructions
  • Advanced Vector Extensions
  • EM64T technology
  • Execute Disable bit
  • Hyper-Threading technology
  • Virtualization technology (VT-x / VT-d)
  • Turbo Boost Technology 2.0
Low power features Enhanced SpeedStep technology
On-chip peripherals
  • 4-channel DDR3 memory controller
  • Direct Media Interface
  • PCI Express 2.0 interface
Electrical/Thermal parameters
V core 0.6V - 1.35V
Maximum operating temperature 72.6°C
Thermal Design Power 130 Watt
Notes on Intel CM8061901049606
  • Memory controller supports DDR3-1333 and DDR3-1600 memory
  • Maximum Turbo boost frequency is 3.9 GHz according to Intel roadmaps, and 3.8 GHz according to ARK



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