Intel Core i5 6600K

Cores: 4
L3 cache: 6MB (shared)
TDP: 91 W
Transistor size: 14 nm

Core i5 6600K - desktop processor produced by Intel for socket LGA-1151 that has 4 cores and 4 threads. The base clock frequency of the CPU is 3500 MHz, but due to Turbo Boost technology, it can perform up to 3900 MHz. The size of the L3 cache is 6 MB. Please note that this chip has integrated graphics Intel HD Graphics 530.

Review

Single-Core Performance

42

Multi-Core Performance

12

Power Efficiency

41

Integrated Graphics

n/a

NanoReview Final Score

30

Compare Intel Core i5 6600K with other CPUs

Cinebench

Reputable cross-platform benchmark for high-performance processors

Cinebench 2024 (Single)

61

Cinebench 2024 (Multi)

212

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)

1486

Geekbench 6 (Multi-Core)

4409

File compression	363.1 MB/sec
Clang compilation	29.9 Klines/sec
HTML 5 Browser	98.1 pages/sec
PDF Renderer	150.1 Mpixels/sec
Text processing	149.8 pages/sec
Background blur	28.1 images/sec
Photo processing	47.6 images/sec
Ray tracing	4.81 Mpixels/sec

Sources: GeekBench [1] – 800 samples

PassMark

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

Passmark CPU (Single-Core)

2315

Passmark CPU (Multi-Core)

6303

Integer math	16.3 GOps/sec
Floating point math	14 GOps/sec
Find prime numbers	31M Primes/sec
Random string sorting	10.5M Strings/sec
Data encryption	1.9 GBytes/sec
Data compression	86 MBytes/sec
Physics	507 Frames/sec
Extended instructions	7.5B Matrices/sec

Sources: PassMark [3] – 7268 samples

Blender

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

Blender CPU

54.45

Performance Per Watt

Shows the score you get per each watt of PL1 TDP

Cinebench 2024 / Watt	2.3 PPW
Geekbench 6 Multi / Watt	48.5 PPW
Passmark CPU Mark / Watt	69.3 PPW
Blender / Watt	0.6 PPW

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

General

Vendor	Intel
Released	August 5, 2015
Type	Desktop
Instruction Set	x86-64
Codename	Skylake
Model number	i5-6600K
Integrated GPU	HD Graphics 530

CPU

Performance Cores
P-Cores	4
P-Threads	4
Base Frequency (P)	3.5 GHz
Turbo Boost Frequency (P)	3.9 GHz

Total
Total Cores	4
Total Threads	4
Bus Frequency	100 MHz
Multiplier	35x
Bus Bandwidth	8 GT/s
L1 Cache	64K (per core)
L2 Cache	256K (per core)
L3 Cache	6MB (shared)
Unlocked Multiplier	No

Package

Fabrication Process	14 nm
TDP (PL1)	91 W
Socket	LGA-1151

Desktop CPU ranking - 182nd place

iGPU

Integrated Graphics	Intel HD Graphics 530
GPU Boost Clock	1150 MHz

Memory Support

Memory Types	- DDR4-2133 - DDR3L-1600
Max. Memory Size	64 GB
Memory Channels	2
Max. Memory Bandwidth	34.1 GB/s
ECC Support	No

Misc

Official Site	Intel Core i5 6600K official page
PCI Express Version	3.0
PCI Express Lanes	16
Technologies	- Compute: ABM, BMI1, BMI2, CLMUL, F16C - Performance: EIST, HTT, TBT 2.0, TSX - Virtualization: EPT, VT-d, VT-x - Security: MPX, SGX, SMEP, TXT, XD bit