Intel Core i5 8600K

Cores: 6
L3 cache: 9MB (shared)
TDP: 95 W
Transistor size: 14 nm

Core i5 8600K - desktop processor produced by Intel for socket LGA-1151 that has 6 cores and 6 threads. The base clock frequency of the CPU is 3600 MHz, but due to Turbo Boost technology, it can perform up to 4300 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

45

Multi-Core Performance

18

Power Efficiency

41

Integrated Graphics

23

NanoReview Final Score

34

Compare Intel Core i5 8600K with other CPUs

Cinebench

Reputable cross-platform benchmark for high-performance processors

Cinebench 2024 (Single)

63

Cinebench 2024 (Multi)

342

Submit your benchmark results

GeekBench v6

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

Geekbench 6 (Single-Core)

1605

Geekbench 6 (Multi-Core)

6114

File compression	473.5 MB/sec
Clang compilation	40.5 Klines/sec
HTML 5 Browser	144.1 pages/sec
PDF Renderer	191 Mpixels/sec
Text processing	156.7 pages/sec
Background blur	39.9 images/sec
Photo processing	62.7 images/sec
Ray tracing	7.6 Mpixels/sec

Sources: GeekBench [1] – 1138 samples

PassMark

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

Passmark CPU (Single-Core)

2568

Passmark CPU (Multi-Core)

10142

Integer math	27.7 GOps/sec
Floating point math	23.8 GOps/sec
Find prime numbers	42M Primes/sec
Random string sorting	17.2M Strings/sec
Data encryption	3.1 GBytes/sec
Data compression	140.7 MBytes/sec
Physics	722 Frames/sec
Extended instructions	12.5B Matrices/sec

Sources: PassMark [3] – 3889 samples

Blender

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

Blender CPU

90.51

Performance Per Watt

Shows the score you get per each watt of PL1 TDP

Cinebench 2024 / Watt	3.6 PPW
Geekbench 6 Multi / Watt	64.4 PPW
Passmark CPU Mark / Watt	106.8 PPW
Blender / Watt	0.95 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
📘 2025-03-16 (london)	Cinebench 2024	63 / 342

Add View all (1)

General

Vendor	Intel
Released	October 5, 2017
Type	Desktop
Instruction Set	x86-64
Codename	Coffee Lake
Model number	i5-8600K
Integrated GPU	UHD Graphics 630
AMD Equivalent	- AMD Ryzen 5 2600X
Successor	- Intel Core Ultra 5 250K Plus

CPU

Performance Cores
P-Cores	6
P-Threads	6
Base Frequency (P)	3.6 GHz
Turbo Boost Frequency (P)	4.3 GHz

Total
Total Cores	6
Total Threads	6
Bus Frequency	100 MHz
Multiplier	36x
Bus Bandwidth	8 GT/s
L1 Cache	64K (per core)
L2 Cache	256K (per core)
L3 Cache	9MB (shared)
Unlocked Multiplier	Yes

Package

Fabrication Process	14 nm
TDP (PL1)	95 W
Socket	LGA-1151
Peak Temperature	100°C

Desktop CPU ranking - 164th place

iGPU

Integrated Graphics	Intel UHD Graphics 630
GPU Base Clock	350 MHz
GPU Boost Clock	1150 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 8600K

Memory Support

Memory Types	- DDR4-2666
Max. Memory Size	128 GB
Memory Channels	2
Max. Memory Bandwidth	42.6 GB/s
ECC Support	No

Misc

Official Site	Intel Core i5 8600K 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