Intel Core i9 9940X vs Intel Core i9 9900KS

VS

Intel Core i9 9940X

Intel Core i9 9900KS

We compared two desktop CPUs: Intel Core i9 9940X with 14 cores 3.3GHz and Intel Core i9 9900KS with 8 cores 4.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 9940X 's Advantages

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

Larger L3 cache size (20MB vs 16MB)

Intel Core i9 9900KS 's Advantages

Released 1 years late

Integrated graphics card

Higher base frequency (4.0GHz vs 3.3GHz)

Lower TDP (127W vs 165W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9940X

1228

Intel Core i9 9900KS +7%

1323

Cinebench R23 Multi Core

Intel Core i9 9940X +15%

15351

Intel Core i9 9900KS

13343

Geekbench 6 Single Core

Intel Core i9 9940X

1328

Intel Core i9 9900KS +26%

1678

Geekbench 6 Multi Core

Intel Core i9 9940X +11%

9787

Intel Core i9 9900KS

8751

Geekbench 5 Single Core

Intel Core i9 9940X

1189

Intel Core i9 9900KS +16%

1391

Geekbench 5 Multi Core

Intel Core i9 9940X +49%

14374

Intel Core i9 9900KS

9636

Passmark CPU Single Core

Intel Core i9 9940X

2608

Intel Core i9 9900KS +16%

3029

Passmark CPU Multi Core

Intel Core i9 9940X +46%

28355

Intel Core i9 9900KS

19417

Intel Core i9 9940X

VS

Intel Core i9 9900KS

General Parameters

Oct 2018

Release Date

Oct 2019

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Coffee Lake

i9-9940X

Processor Number

i9-9900KS

LGA-2066

Socket

LGA-1151

N/A

Integrated Graphics

UHD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

165 W

Power Consumption

127 W

88 °C

Peak Operating Temperature

100 °C

CPU Performance

14

Performance Cores

8

28

Performance Core Threads

16

3.3 GHz

Performance Core Base Frequency

4.0 GHz

4.4 GHz

Performance Core Turbo Frequency

5 GHz

14

Total Core Count

8

28

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

40x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

20 MB shared

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-2666

128 GB

Max Memory Size

128 GB

4

Max Memory Channels

2

85 GB/s

Max Memory Bandwidth

41.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

-

GPU Max Dynamic Frequency

1200 MHz

-

Shader Units

192

-

Texture Units

24

-

Raster Operation Units

3

-

Execution Units

24

-

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

-

Graphics Performance

0.38 TFLOPS

Miscellaneous

Intel Core i9 9940X

Official Website

Intel Core i9 9900KS

3.0

PCIe Version

3.0

44

PCIe Lanes

16

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

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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