Intel Core i7 9800X vs Intel Core i7 7800X

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We compared two desktop CPUs: Intel Core i7 9800X with 8 cores 3.8GHz 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 i7 9800X 's Advantages

Released 1 years and 5 months late

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

Higher base frequency (3.8GHz vs 3.5GHz)

Larger L3 cache size (17MB vs 8MB)

Intel Core i7 7800X 's Advantages

Lower TDP (140W vs 165W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 9800X +29%

1251

Intel Core i7 7800X

963

Cinebench R23 Multi Core

Intel Core i7 9800X +78%

12945

Intel Core i7 7800X

7269

Geekbench 6 Single Core

Intel Core i7 9800X

1314

Intel Core i7 7800X +3%

1362

Geekbench 6 Multi Core

Intel Core i7 9800X +31%

7991

Intel Core i7 7800X

6082

Geekbench 5 Single Core

Intel Core i7 9800X +14%

1225

Intel Core i7 7800X

1069

Geekbench 5 Multi Core

Intel Core i7 9800X +46%

9648

Intel Core i7 7800X

6578

Passmark CPU Single Core

Intel Core i7 9800X +6%

2573

Intel Core i7 7800X

2409

Passmark CPU Multi Core

Intel Core i7 9800X +40%

18121

Intel Core i7 7800X

12894

Intel Core i7 9800X

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Intel Core i7 7800X

General Parameters

Oct 2018

Release Date

May 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Skylake

i7-9800X

Processor Number

i7-7800X

LGA-2066

Socket

LGA-2066

N/A

Integrated Graphics

N/A

Package

14 nm

Manufacturing Process

14 nm

LGA-2066

Socket

LGA-2066

165 W

Power Consumption

140 W

95 °C

Peak Operating Temperature

100 °C

CPU Performance

8

Performance Cores

6

16

Performance Core Threads

12

3.8 GHz

Performance Core Base Frequency

3.5 GHz

4.4 GHz

Performance Core Turbo Frequency

4 GHz

8

Total Core Count

6

16

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

35x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

17 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

4

Max Memory Channels

4

79.47 GB/s

Max Memory Bandwidth

79.47 GB/s

No

ECC Memory Support

No

Miscellaneous

Intel Core i7 9800X

Official Website

Intel Core i7 7800X

3.0

PCIe Version

3.0

44

PCIe Lanes

28

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

Extended Instruction Set

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

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