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Intel Core i5-6600 vs Intel Core i9-9900K

Last updated: 2026-07-03

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 2 - 77 %

Intel Core i5-6600

Rank 1 - 100 %

Intel Core i9-9900K

Multi-core performance

Rank 2 - 34 %

Intel Core i5-6600

Rank 1 - 100 %

Intel Core i9-9900K

Cinebench R23 Single-Core
Single-core performance

4C / 4T · 3.90 GHz

1,041 pts

8C / 16T · 5.00 GHz

1,294 pts

Cinebench R23 Multi-Core
Multi-core performance

4C / 4T · 3.60 GHz

3,741 pts

8C / 16T · 4.70 GHz

12,812 pts

Geekbench 6 Single-Core
Single-core performance

4C / 4T · 3.90 GHz

1,278

8C / 16T · 5.00 GHz

1,650

Geekbench 6 Multi-Core
Multi-core performance

4C / 4T · 3.60 GHz

3,648

8C / 16T · 4.70 GHz

8,182

Cinebench R20 Single-Core
Single-core performance

4C / 4T · 3.90 GHz

381 cb

8C / 16T · 5.00 GHz

518 cb

Geekbench 5, 64bit Single-Core
Single-core performance

4C / 4T · 3.90 GHz

966

8C / 16T · 5.00 GHz

1,342

Cinebench R20 Multi-Core
Multi-core performance

4C / 4T · 3.60 GHz

1,411 cb

8C / 16T · 4.70 GHz

4,995 cb

Geekbench 5, 64bit Multi-Core
Multi-core performance

4C / 4T · 3.60 GHz

3,167

8C / 16T · 4.70 GHz

8,779

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel HD Graphics 530

442

Intel UHD Graphics 630

461

Blender 2.81 (bmw27)
Multi-core performance

4C / 4T · 3.60 GHz

559.4 s

8C / 16T · 4.70 GHz

163.8 s

CPU-Z Benchmark 17 Multi-Core
Multi-core performance

4C / 4T · 3.30 GHz

1,586

8C / 16T · 3.60 GHz

5,502

Cinebench R15 (Single-Core)
Single-core performance

4C / 4T · 3.90 GHz

166 cb

8C / 16T · 5.00 GHz

219 cb

Cinebench R15 (Multi-Core)
Multi-core performance

4C / 4T · 3.60 GHz

597 cb

8C / 16T · 4.70 GHz

2,245 cb

More benchmarks

Cinebench 2026 (ST)
218 entries

Cinebench 2026 (MC)
219 entries

Cinebench 2024 (SC)
427 entries

Cinebench 2024 (MC)
422 entries

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Cinebench R20 (SC)
666 entries

Geekbench 5 (SC)
2,512 entries

Cinebench R20 (MC)
615 entries

Geekbench 5 (MC)
2,483 entries

FP32 SP (iGPU)
2,219 entries

3DMark Timespy (iGPU)
534 entries

Blender 3.1 Benchmark
213 entries

PassMark CPU-Mark
2,504 entries

Blender 2.81 (bmw27)
190 entries

CPU-Z Benchmark 17 (SC)
250 entries

CPU-Z Benchmark 17 (MC)
751 entries

Monero Hashrate
94 entries

V-Ray CPU-Render
251 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Geekbench 3 (SC)
945 entries

Geekbench 3 (MC)
941 entries

Cinebench R11.5 (SC)
826 entries

Cinebench R11.5 (MC)
837 entries

Cinebench R11.5 iGPU
383 entries

Specifications

At a glance

Wischen	Intel Core i5-6600	Intel Core i9-9900K
Family	Intel Core i5 (336)	Intel Core i9 (81)
CPU group	Intel Core i 6000 (24)	Intel Core i 9000 (34)
Architecture	Skylake S	Coffee Lake S Refresh
Technology	14 nm	14 nm
Segment	Desktop	Desktop
Socket	LGA 1151	LGA 1151-2
Predecessor
Successor	Intel Core i5-7600	Intel Core i9-10900K

CPU Cores and Base Frequency

Wischen	Intel Core i5-6600	Intel Core i9-9900K
CPU Cores / Threads	4 / 4	8 / 16
Hyperthreading / SMT	✗	✓
Core architecture	normal	normal
Cores:	4x	8x
Frequency:	3.30 GHz	3.60 GHz
Turbo (1 Core):	3.90 GHz	5.00 GHz
Turbo (All Cores):	3.60 GHz	4.70 GHz
L2-Cache
L3-Cache	6.00 MB	16.00 MB
Overclocking	✗	✓

Integrated graphics (iGPU)

Wischen	Intel Core i5-6600	Intel Core i9-9900K
GPU name	Intel HD Graphics 530	Intel UHD Graphics 630
GPU frequency	0.35 - 1.15 GHz	0.35 - 1.20 GHz
CUs / Shader	24 / 192	24 / 192
Raytracing	✗	✗
Max. displays	3	3
Max. GPU Memory	32 GB	64 GB
Technology	14 nm	14 nm
Release date	Q3/2015	Q4/2017

NPU AI performance

Wischen	Intel Core i5-6600	Intel Core i9-9900K
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core i5-6600	Intel Core i9-9900K
Memory	DDR4-2133 (34.1 GB/s) DDR3-1600 (25.6 GB/s)	DDR4-2666 (42.7 GB/s)
Max. Memory	64 GB	128 GB
Memory channels	2	2
ECC	No	No
PCIe	3.0 x 16	3.0 x 16
PCIe Bandwidth	15.8 GB/s	15.8 GB/s

Thermal Management

Wischen	Intel Core i5-6600	Intel Core i9-9900K
TDP	65 W	95 W
TDP (PL2)		119 W @ 28 s
TDP up
TDP down
T. junction max.		100 °C

Technical details

Wischen	Intel Core i5-6600	Intel Core i9-9900K
Chip design	Monolithic	Monolithic
AES-NI	✓	✓
Operating systems	Windows 10, Linux	Windows 10, Windows 11, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX2	SSE4.1, SSE4.2, AVX2
Release date	Q3/2015	Q4/2018
Release price	250 $	650 $
Documents	Technical data sheet	Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core i5-6600 is 4.3 stars (27 ratings), while Intel Core i9-9900K has received 4.2 stars (109 ratings).

Click on the stars to rate one or both processors.

Intel Core i5-6600
4C / 4T · 3.30 - 3.90 GHz

★★★★★

Intel Core i9-9900K
8C / 16T · 3.60 - 5.00 GHz

★★★★★