Intel Core i9 7920X vs Intel Core i7 7820X

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We compared two desktop CPUs: Intel Core i9 7920X with 12 cores 2.9GHz 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 7920X 's Advantages

Larger memory bandwidth (85GB/s vs 79.47GB/s)

Larger L3 cache size (17MB vs 11MB)

Intel Core i7 7820X 's Advantages

Higher base frequency (3.6GHz vs 2.9GHz)

Score

Benchmark

Geekbench 6 Single Core

Intel Core i9 7920X

1053

Intel Core i7 7820X +18%

1252

Geekbench 6 Multi Core

Intel Core i9 7920X

4327

Intel Core i7 7820X +73%

7510

Geekbench 5 Single Core

Intel Core i9 7920X +1%

1137

Intel Core i7 7820X

1120

Geekbench 5 Multi Core

Intel Core i9 7920X +39%

11828

Intel Core i7 7820X

8504

Passmark CPU Single Core

Intel Core i9 7920X

2488

Intel Core i7 7820X +1%

2536

Passmark CPU Multi Core

Intel Core i9 7920X +36%

23468

Intel Core i7 7820X

17189

Intel Core i9 7920X

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Intel Core i7 7820X

General Parameters

Aug 2017

Release Date

May 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Skylake

i9-7920X

Processor Number

i7-7820X

LGA-2066

Socket

LGA-2066

N/A

Integrated Graphics

N/A

Package

14 nm

Manufacturing Process

14 nm

LGA-2066

Socket

LGA-2066

140 W

Power Consumption

140 W

95 °C

Peak Operating Temperature

99 °C

CPU Performance

12

Performance Cores

8

24

Performance Core Threads

16

2.9 GHz

Performance Core Base Frequency

3.6 GHz

4.3 GHz

Performance Core Turbo Frequency

4.3 GHz

12

Total Core Count

8

24

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

29x

Multiplier

36x

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

11 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

4

85 GB/s

Max Memory Bandwidth

79.47 GB/s

No

ECC Memory Support

No

Miscellaneous

Intel Core i9 7920X

Official Website

Intel Core i7 7820X

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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