Intel Core I5 9400F 6-Core 2.9Ghz 9MB Cache Socket LGA1151

Microarchitecture Coffee Lake
Processor core Coffee Lake-S
Core steppings P0 (QRNP, SRFAH)
R0 (QRNQ, SRG0Z)
U0 (SRF6M)
Manufacturing process 0.014 micron
Data width 64 bit
The number of CPU cores 6
The number of threads 6
Floating Point Unit Integrated
Level 1 cache size 6 x 32 KB 8-way set associative instruction caches
6 x 32 KB 8-way set associative data caches
Level 2 cache size 6 x 256 KB 4-way set associative caches
Level 3 cache size 9 MB 12-way set associative shared cache
Physical memory 128 GB
Multiprocessing Uniprocessor
Extensions and 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
  • 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
  • EM64T / Extended Memory 64 technology / Intel 64
  • 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
  • MPX / Memory Protection Extensions
  • SGX / Software Guard Extensions
  • SMAP / Supervisor Mode Access Prevention
  • SMEP / Secure Mode Execution Protection
Low power features
  • Core C1/C1E, C3, C6, C7, C8, C9 and C10 states
  • Package C2, C3, C6, C7, C8, C9 and C10 states
  • Enhanced SpeedStep technology
Integrated peripherals / components
Integrated graphics None
Memory controller The number of controllers: 1
Memory channels: 2
Channel width (bits): 64
Supported memory: DDR4-2666
DIMMs per channel: 2
Maximum memory bandwidth (GB/s): 42.7
Other peripherals
  • Direct Media Interface 3.0 (4 lanes)
  • PCI Express 3.0 interface (16 lanes)
Electrical / Thermal parameters
Minimum/Maximum operating temperature 0°C (case temperature) - 71°C (case temperature)
100°C (Digital Thermal Sensor)
Thermal Design Power 65 Watt

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