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Key specs
Cores
6
Threads
6
Boost Clock
4 GHz
TDP
65 W
Socket
LGA-1151
Process
14 nm
Benchmarks
Rating
30
Cinebench 2024 Single-Core
60
Cinebench 2024 Multi-Core
313
TDP
65 W
Cache L3
9MB
Cinebench 2024 (Single)
60
Cinebench 2024 (Multi)
313
Geekbench 6 (Single-Core)
1414
Geekbench 6 (Multi-Core)
5082
Passmark CPU (Single-Core)
2366
Passmark CPU (Multi-Core)
9232
Blender CPU
77.38
iGPU FLOPS
0.4 TFLOPS
GeekBench v6
File compression
392.9 MB/sec
Clang compilation
36 Klines/sec
HTML 5 Browser
115 pages/sec
PDF Renderer
156.8 Mpixels/sec
Text processing
139 pages/sec
Background blur
33.8 images/sec
Photo processing
49.9 images/sec
Ray tracing
5.93 Mpixels/sec
PassMark
Integer math
25.6 GOps/sec
Floating point math
22 GOps/sec
Find prime numbers
37M Primes/sec
Random string sorting
15.9M Strings/sec
Data encryption
2.8 GBytes/sec
Data compression
129.6 MBytes/sec
Physics
634 Frames/sec
Extended instructions
11.5B Matrices/sec
Performance Per Watt
Cinebench 2024 / Watt
4.8 PPW
Geekbench 6 Multi / Watt
78.2 PPW
Passmark CPU Mark / Watt
142 PPW
Blender / Watt
1.19 PPW
General
Vendor
Intel
Released
October 5, 2017
Type
Desktop
Instruction Set
x86-64
Codename
Coffee Lake
Model number
i5-8400
Integrated GPU
UHD Graphics 630
AMD Equivalent
- AMD Ryzen 5 2400G
Successor
- Intel Core Ultra 5 225
CPU
P-Cores
6
P-Threads
6
Base Frequency (P)
2.8 GHz
Turbo Boost Frequency (P)
4 GHz
Total Cores
6
Total Threads
6
Bus Frequency
100 MHz
Multiplier
28x
Bus Bandwidth
8 GT/s
L1 Cache
64K (per core)
L2 Cache
256K (per core)
L3 Cache
9MB (shared)
Unlocked Multiplier
No
Package
Fabrication Process
14 nm
TDP (PL1)
65 W
Socket
LGA-1151
Peak Temperature
100°C
iGPU
Integrated Graphics
Intel UHD Graphics 630
GPU Base Clock
350 MHz
GPU Boost Clock
1050 MHz
Shading Units
192
TMUs
24
ROPs
3
Execution Units
24
TGP
15 W
Memory Support
Memory Types
- DDR4-2666
Max. Memory Size
128 GB
Memory Channels
2
Max. Memory Bandwidth
41.6 GB/s
ECC Support
No
Misc
Official Site
Intel Core i5 8400 official page
PCI Express Version
3.0
PCI Express Lanes
16
Technologies
- Compute: BMI1, BMI2, CLMUL, F16C - Performance: Boost 2.0, EIST, TSX - Virtualization: VT-d, VT-x - Security: TXT, XD bit