Intel Core i9 9900KF vs Intel Core i9 9900X

VS

Intel Core i9 9900KF Intel Core i9 9900X

We compared two desktop CPUs: Intel Core i9 9900KF with 8 cores 3.6GHz and Intel Core i9 9900X with 10 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 9900KF 's Advantages

Higher base frequency (3.6GHz vs 3.5GHz)

Lower TDP (95W vs 165W)

Intel Core i9 9900X 's Advantages

Larger memory bandwidth (85GB/s vs 41.6GB/s)

Larger L3 cache size (20MB vs 16MB)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9900KF +7%

1265

Intel Core i9 9900X

1182

Cinebench R23 Multi Core

Intel Core i9 9900KF

12691

Intel Core i9 9900X +10%

13994

Geekbench 6 Single Core

Intel Core i9 9900KF +10%

1612

Intel Core i9 9900X

1455

Geekbench 6 Multi Core

Intel Core i9 9900KF

7648

Intel Core i9 9900X +34%

10273

Geekbench 5 Single Core

Intel Core i9 9900KF +11%

1300

Intel Core i9 9900X

1165

Geekbench 5 Multi Core

Intel Core i9 9900KF

8856

Intel Core i9 9900X +20%

10704

Passmark CPU Single Core

Intel Core i9 9900KF +14%

2945

Intel Core i9 9900X

2565

Passmark CPU Multi Core

Intel Core i9 9900KF

18462

Intel Core i9 9900X +18%

21833

Intel Core i9 9900KF

VS

Intel Core i9 9900X

General Parameters

Jan 2019

Release Date

Oct 2018

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Skylake

i9-9900KF

Processor Number

i9-9900X

LGA-1151

Socket

LGA-2066

N/A

Integrated Graphics

N/A

Package

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-2066

95 W

Power Consumption

165 W

100 °C

Peak Operating Temperature

92 °C

CPU Performance

8

Performance Cores

10

16

Performance Core Threads

20

3.6 GHz

Performance Core Base Frequency

3.5 GHz

5 GHz

Performance Core Turbo Frequency

4.4 GHz

8

Total Core Count

10

16

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

36x

Multiplier

35x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

1 MB per core

16 MB shared

L3 Cache

20 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-2666

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

4

41.6 GB/s

Max Memory Bandwidth

85 GB/s

No

ECC Memory Support

No

Miscellaneous

Intel Core i9 9900KF

Official Website

Intel Core i9 9900X

3.0

PCIe Version

3.0

16

PCIe Lanes

44

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2, AVX-512

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