Intel Core i9 7900X vs Intel Core i9 9900K

VS

We compared two desktop CPUs: Intel Core i9 7900X with 10 cores 3.3GHz and Intel Core i9 9900K with 8 cores 3.6GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 7900X 's Advantages

Larger memory bandwidth (79.47GB/s vs 41.6GB/s)

Intel Core i9 9900K 's Advantages

Released 1 years and 5 months late

Integrated graphics card

Higher base frequency (3.6GHz vs 3.3GHz)

Larger L3 cache size (16MB vs 14MB)

Lower TDP (95W vs 140W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 7900X

1203

Intel Core i9 9900K +11%

1338

Cinebench R23 Multi Core

Intel Core i9 7900X

11804

Intel Core i9 9900K +5%

12500

Geekbench 6 Single Core

Intel Core i9 7900X

1323

Intel Core i9 9900K +25%

1665

Geekbench 6 Multi Core

Intel Core i9 7900X +33%

8536

Intel Core i9 9900K

6395

Geekbench 5 Single Core

Intel Core i9 7900X

1127

Intel Core i9 9900K +12%

1265

Geekbench 5 Multi Core

Intel Core i9 7900X +21%

10189

Intel Core i9 9900K

8406

Passmark CPU Single Core

Intel Core i9 7900X

2556

Intel Core i9 9900K +15%

2945

Passmark CPU Multi Core

Intel Core i9 7900X +14%

20991

Intel Core i9 9900K

18381

Intel Core i9 7900X

VS

Intel Core i9 9900K

General Parameters

May 2017

Release Date

Oct 2018

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Coffee Lake

i9-7900X

Processor Number

i9-9900K

LGA-2066

Socket

LGA-1151

N/A

Integrated Graphics

UHD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

LGA-2066

Socket

LGA-1151

140 W

Power Consumption

95 W

95 °C

Peak Operating Temperature

100 °C

CPU Performance

10

Performance Cores

8

20

Performance Core Threads

16

3.3 GHz

Performance Core Base Frequency

3.6 GHz

4.3 GHz

Performance Core Turbo Frequency

5 GHz

10

Total Core Count

8

20

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

36x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

14 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

79.47 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 7900X

Official Website

Intel Core i9 9900K

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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