Intel Core i7 7800X vs Intel Core i9 9900KF

VS

Intel Core i7 7800X Intel Core i9 9900KF

We compared two desktop CPUs: Intel Core i7 7800X with 6 cores 3.5GHz and Intel Core i9 9900KF 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 i7 7800X 's Advantages

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

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)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 7800X

963

Intel Core i9 9900KF +30%

1260

Cinebench R23 Multi Core

Intel Core i7 7800X

7269

Intel Core i9 9900KF +73%

12606

Geekbench 6 Single Core

Intel Core i7 7800X

1362

Intel Core i9 9900KF +18%

1612

Geekbench 6 Multi Core

Intel Core i7 7800X

6082

Intel Core i9 9900KF +25%

7648

Geekbench 5 Single Core

Intel Core i7 7800X

1069

Intel Core i9 9900KF +21%

1300

Geekbench 5 Multi Core

Intel Core i7 7800X

6578

Intel Core i9 9900KF +34%

8856

Passmark CPU Single Core

Intel Core i7 7800X

2409

Intel Core i9 9900KF +22%

2945

Passmark CPU Multi Core

Intel Core i7 7800X

12894

Intel Core i9 9900KF +43%

18462

Intel Core i7 7800X

VS

Intel Core i9 9900KF

General Parameters

May 2017

Release Date

Jan 2019

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Coffee Lake

i7-7800X

Processor Number

i9-9900KF

LGA-2066

Socket

LGA-1151

N/A

Integrated Graphics

N/A

Package

14 nm

Manufacturing Process

14 nm

LGA-2066

Socket

LGA-1151

140 W

Power Consumption

95 W

100 °C

Peak Operating Temperature

100 °C

CPU Performance

6

Performance Cores

8

12

Performance Core Threads

16

3.5 GHz

Performance Core Base Frequency

3.6 GHz

4 GHz

Performance Core Turbo Frequency

5 GHz

6

Total Core Count

8

12

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

35x

Multiplier

36x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

8 MB shared

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2400

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

Miscellaneous

Intel Core i7 7800X

Official Website

Intel Core i9 9900KF

3.0

PCIe Version

3.0

28

PCIe Lanes

16

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

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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