Intel Core i9 10940X vs Intel Core i9 7900X

VS

Intel Core i9 10940X Intel Core i9 7900X

We compared two desktop CPUs: Intel Core i9 10940X with 14 cores 3.3GHz and Intel Core i9 7900X with 10 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 10940X 's Advantages

Released 2 years and 5 months late

Higher specification of memory (DDR4-2933 vs DDR4-2666)

Larger memory bandwidth (93.8GB/s vs 79.47GB/s)

Larger L3 cache size (20MB vs 14MB)

Intel Core i9 7900X 's Advantages

Lower TDP (140W vs 165W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 10940X +2%

1234

Intel Core i9 7900X

1203

Cinebench R23 Multi Core

Intel Core i9 10940X +36%

16117

Intel Core i9 7900X

11804

Geekbench 6 Single Core

Intel Core i9 10940X +11%

1471

Intel Core i9 7900X

1323

Geekbench 6 Multi Core

Intel Core i9 10940X +32%

11287

Intel Core i9 7900X

8536

Geekbench 5 Single Core

Intel Core i9 10940X +1%

1144

Intel Core i9 7900X

1127

Geekbench 5 Multi Core

Intel Core i9 10940X +33%

13573

Intel Core i9 7900X

10189

Passmark CPU Single Core

Intel Core i9 10940X +5%

2686

Intel Core i9 7900X

2556

Passmark CPU Multi Core

Intel Core i9 10940X +32%

27907

Intel Core i9 7900X

20991

Intel Core i9 10940X

VS

Intel Core i9 7900X

General Parameters

Oct 2019

Release Date

May 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Cascade Lake

Core Architecture

Skylake

i9-10940X

Processor Number

i9-7900X

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

86 °C

Peak Operating Temperature

95 °C

CPU Performance

14

Performance Cores

10

28

Performance Core Threads

20

3.3 GHz

Performance Core Base Frequency

3.3 GHz

4.6 GHz

Performance Core Turbo Frequency

4.3 GHz

14

Total Core Count

10

28

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

33x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

20 MB shared

L3 Cache

14 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2933

Memory Types

DDR4-2666

256 GB

Max Memory Size

128 GB

4

Max Memory Channels

4

93.8 GB/s

Max Memory Bandwidth

79.47 GB/s

No

ECC Memory Support

No

Miscellaneous

Intel Core i9 10940X

Official Website

Intel Core i9 7900X

3.0

PCIe Version

3.0

48

PCIe Lanes

44

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

Extended Instruction Set

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

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