c i5-8400 specifications
General information
Type
CPU / Microprocessor
Market segment
Desktop
Family
Model number?
i5-8400
CPU part numbers
CM8068403358811is an OEM/tray microprocessor
BO80684I58400is a boxed CPU with 16GB of I Optane memory (English version)
BOC80684I58400is a boxed CPU with 16GB of I Optane memory (Chinese version)
BX80684I58400is a boxed CPU (English version)
BXC80684I58400is a boxed CPU (Chinese version)
Frequency?
2800 MHz
Maximum turbo frequency
4000 MHz (1 c)
3900 MHz (2, 3 or 4 cores)
3800 MHz (5 or 6 cores)
Low power frequency
800 MHz
Bus speed?
8 GT/s
Clock multiplier?
28
Package
1151-land Flip-Chip Land Grid Array
S-spec numbers
Part number
ES/QS processors
Production processors
QNMN
SR3QT
BO80684I58400
+
BOC80684I58400
+
BX80684I58400
+
BXC80684I58400
+
CM8068403358811
+
Unknown
+
Architecture / Microarchitecture
Microarchitecture
Coffee Lake
Processor c?
Coffee Lake-S
c stepping?
U0 (SR3QT)
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
64 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 / I 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
c C1/C1E, C3, C6, C7, C8, C9 and C10 states
Package C2, C3, C6, C7, C8, C9 and C10 states
Enhanced / technology?
Integrated peripherals / components
Display controller
3 displays
DVI / DisplayPort 1.2 / Embedded DisplayPort 1.4 / HDMI 1.4
Integrated graphics
GPU Type: I UHD 630
Graphics tier: GT2
Microarchitecture: Gen 9 LP
Execution units: 23
Base frequency (MHz): 350
Maximum frequency (MHz): 1050
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) - 71.4°C (case temperature)
100°C (Digital Thermal Sensor)
Thermal Design Power?
65 Watt