Intel Core i5 9400

Cores: 6
L3 cache: 9MB (shared)
TDP: 65 W
Transistor size: 14 nm

Core i5 9400 - desktop processor produced by Intel for socket LGA-1151 that has 6 cores and 6 threads. The base clock frequency of the CPU is 2900 MHz, but due to Turbo Boost technology, it can perform up to 4100 MHz. The size of the L3 cache is 9 MB. Please note that this chip has integrated graphics Intel UHD Graphics 630.

Review

Single-Core Performance

40

Multi-Core Performance

17

Power Efficiency

42

Integrated Graphics

23

NanoReview Final Score

31

Compare Intel Core i5 9400 with other CPUs

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps

Geekbench 6 (Single-Core)

1363

Geekbench 6 (Multi-Core)

5314

File compression	423.9 MB/sec
Clang compilation	38.7 Klines/sec
HTML 5 Browser	114.6 pages/sec
PDF Renderer	167 Mpixels/sec
Text processing	141.1 pages/sec
Background blur	35.1 images/sec
Photo processing	49.1 images/sec
Ray tracing	7.01 Mpixels/sec

Sources: GeekBench [1] – 1057 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions

Passmark CPU (Single-Core)

2419

Passmark CPU (Multi-Core)

9368

Integer math	26.3 GOps/sec
Floating point math	22.7 GOps/sec
Find prime numbers	36M Primes/sec
Random string sorting	16.3M Strings/sec
Data encryption	2.9 GBytes/sec
Data compression	132 MBytes/sec
Physics	620 Frames/sec
Extended instructions	11.7B Matrices/sec

Sources: PassMark [3] – 3036 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)

Blender CPU

80.24

Performance Per Watt

Shows the score you get per each watt of PL1 TDP

Geekbench 6 Multi / Watt	81.8 PPW
Passmark CPU Mark / Watt	144.1 PPW
Blender / Watt	1.23 PPW

These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users

Date	Benchmark	Result
📘 2026-09-16 -> op1	Geekbench 6 CPU	1452 / 4659

Add View all (1)

General

Vendor	Intel
Released	January 7, 2019
Type	Desktop
Instruction Set	x86-64
Codename	Coffee Lake
Model number	i5-9400
Integrated GPU	UHD Graphics 630
AMD Equivalent	- AMD Ryzen 5 3600
Successor	- Intel Core Ultra 5 225

CPU

Performance Cores
P-Cores	6
P-Threads	6
Base Frequency (P)	2.9 GHz
Turbo Boost Frequency (P)	4.1 GHz

Total
Total Cores	6
Total Threads	6
Bus Frequency	100 MHz
Multiplier	29x
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

iGPU FLOPS

0.4 TFLOPS

See also: Intel UHD Graphics 630 – integrated graphics of Intel Core i5 9400

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 9400 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