Intel Core i9 9900K vs Intel Core i7 7820X

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We compared two desktop CPUs: Intel Core i9 9900K with 8 cores 3.6GHz and Intel Core i7 7820X 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 9900K 's Advantages

Released 1 years and 5 months late

Integrated graphics card

Larger L3 cache size (16MB vs 11MB)

Lower TDP (95W vs 140W)

Intel Core i7 7820X 's Advantages

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

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9900K

1338

Intel Core i7 7820X

1338

Cinebench R23 Multi Core

Intel Core i9 9900K

12500

Intel Core i7 7820X +6%

13358

Geekbench 6 Single Core

Intel Core i9 9900K +32%

1665

Intel Core i7 7820X

1252

Geekbench 6 Multi Core

Intel Core i9 9900K

6395

Intel Core i7 7820X +17%

7510

Geekbench 5 Single Core

Intel Core i9 9900K +12%

1265

Intel Core i7 7820X

1120

Geekbench 5 Multi Core

Intel Core i9 9900K

8406

Intel Core i7 7820X +1%

8504

Passmark CPU Single Core

Intel Core i9 9900K +16%

2945

Intel Core i7 7820X

2536

Passmark CPU Multi Core

Intel Core i9 9900K +6%

18381

Intel Core i7 7820X

17189

Intel Core i9 9900K

VS

Intel Core i7 7820X

General Parameters

Oct 2018

Release Date

May 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Skylake

i9-9900K

Processor Number

i7-7820X

LGA-1151

Socket

LGA-2066

UHD Graphics 630

Integrated Graphics

N/A

Package

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-2066

95 W

Power Consumption

140 W

100 °C

Peak Operating Temperature

99 °C

CPU Performance

8

Performance Cores

8

16

Performance Core Threads

16

3.6 GHz

Performance Core Base Frequency

3.6 GHz

5 GHz

Performance Core Turbo Frequency

4.3 GHz

8

Total Core Count

8

16

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

36x

Multiplier

36x

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

11 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

79.47 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

350 MHz

GPU Base Frequency

-

1200 MHz

GPU Max Dynamic Frequency

-

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 9900K

Official Website

Intel Core i7 7820X

3.0

PCIe Version

3.0

16

PCIe Lanes

28

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

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

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