Intel Core i9 9900KF vs Intel Core i7 7800X

VS

Intel Core i9 9900KF Intel Core i7 7800X

We compared two desktop CPUs: Intel Core i9 9900KF with 8 cores 3.6GHz and Intel Core i7 7800X with 6 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

Released 1 years and 8 months late

Higher specification of memory (DDR4-2666 vs DDR4-2400)

Higher base frequency (3.6GHz vs 3.5GHz)

Larger L3 cache size (16MB vs 8MB)

Lower TDP (95W vs 140W)

Intel Core i7 7800X 's Advantages

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

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9900KF +30%

1260

Intel Core i7 7800X

963

Cinebench R23 Multi Core

Intel Core i9 9900KF +73%

12606

Intel Core i7 7800X

7269

Geekbench 6 Single Core

Intel Core i9 9900KF +18%

1612

Intel Core i7 7800X

1362

Geekbench 6 Multi Core

Intel Core i9 9900KF +25%

7648

Intel Core i7 7800X

6082

Geekbench 5 Single Core

Intel Core i9 9900KF +21%

1300

Intel Core i7 7800X

1069

Geekbench 5 Multi Core

Intel Core i9 9900KF +34%

8856

Intel Core i7 7800X

6578

Passmark CPU Single Core

Intel Core i9 9900KF +22%

2945

Intel Core i7 7800X

2409

Passmark CPU Multi Core

Intel Core i9 9900KF +43%

18462

Intel Core i7 7800X

12894

Intel Core i9 9900KF

VS

Intel Core i7 7800X

General Parameters

Jan 2019

Release Date

May 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Skylake

i9-9900KF

Processor Number

i7-7800X

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

140 W

100 °C

Peak Operating Temperature

100 °C

CPU Performance

8

Performance Cores

6

16

Performance Core Threads

12

3.6 GHz

Performance Core Base Frequency

3.5 GHz

5 GHz

Performance Core Turbo Frequency

4 GHz

8

Total Core Count

6

16

Total Thread Count

12

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

8 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-2400

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

Miscellaneous

Intel Core i9 9900KF

Official Website

Intel Core i7 7800X

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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