Intel Core i9 9900 vs Intel Core i5 6600K

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We compared two desktop CPUs: Intel Core i9 9900 with 8 cores 3.1GHz and Intel Core i5 6600K with 4 cores 3.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 9900 's Advantages

Released 3 years and 8 months late

Higher specification of memory (DDR4-2666 vs DDR4-2133)

Larger memory bandwidth (41.6GB/s vs 34.1GB/s)

Larger L3 cache size (16MB vs 6MB)

Lower TDP (65W vs 91W)

Intel Core i5 6600K 's Advantages

Higher base frequency (3.5GHz vs 3.1GHz)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9900 +21%

1267

Intel Core i5 6600K

1043

Cinebench R23 Multi Core

Intel Core i9 9900 +203%

12084

Intel Core i5 6600K

3982

Geekbench 6 Single Core

Intel Core i9 9900 +20%

1589

Intel Core i5 6600K

1314

Geekbench 6 Multi Core

Intel Core i9 9900 +90%

7205

Intel Core i5 6600K

3782

Blender

Intel Core i9 9900 +48%

104

Intel Core i5 6600K

70

Geekbench 5 Single Core

Intel Core i9 9900 +12%

1265

Intel Core i5 6600K

1125

Geekbench 5 Multi Core

Intel Core i9 9900 +109%

7910

Intel Core i5 6600K

3775

Passmark CPU Single Core

Intel Core i9 9900 +22%

2833

Intel Core i5 6600K

2320

Passmark CPU Multi Core

Intel Core i9 9900 +165%

16692

Intel Core i5 6600K

6289

Intel Core i9 9900

VS

Intel Core i5 6600K

General Parameters

Apr 2019

Release Date

Aug 2015

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Skylake

i9-9900

Processor Number

i5-6600K

LGA-1151

Socket

LGA-1151

UHD Graphics 630

Integrated Graphics

HD Graphics 530

Package

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-1151

65 W

Power Consumption

91 W

100 °C

Peak Operating Temperature

-

CPU Performance

8

Performance Cores

4

16

Performance Core Threads

4

3.1 GHz

Performance Core Base Frequency

3.5 GHz

5 GHz

Performance Core Turbo Frequency

3.9 GHz

8

Total Core Count

4

16

Total Thread Count

4

100 MHz

Bus Frequency

100 MHz

31x

Multiplier

35x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

16 MB shared

L3 Cache

6 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR4-2666

Memory Types

DDR4-2133, DDR3L-1600

128 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

41.6 GB/s

Max Memory Bandwidth

34.1 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

350 MHz

GPU Base Frequency

-

1200 MHz

GPU Max Dynamic Frequency

1150 MHz

192

Shader Units

-

24

Texture Units

-

3

Raster Operation Units

-

24

Execution Units

-

15 W

Power Consumption

-

4096x2304 - 60 Hz

Max Resolution

-

0.38 TFLOPS

Graphics Performance

-

Miscellaneous

Intel Core i9 9900

Official Website

Intel Core i5 6600K

3.0

PCIe Version

3.0

16

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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