Intel Core i9 9940X vs Intel Core i7 6950X

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We compared two desktop CPUs: Intel Core i9 9940X with 14 cores 3.3GHz and Intel Core i7 6950X with 10 cores 3.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 9940X 's Advantages

Released 2 years and 5 months late

Higher specification of memory (DDR4-2666 vs DDR4-2133)

Larger memory bandwidth (85GB/s vs 76.8GB/s)

Higher base frequency (3.3GHz vs 3.0GHz)

Intel Core i7 6950X 's Advantages

Larger L3 cache size (25MB vs 20MB)

Lower TDP (140W vs 165W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9940X +14%

1228

Intel Core i7 6950X

1069

Cinebench R23 Multi Core

Intel Core i9 9940X +57%

15351

Intel Core i7 6950X

9743

Geekbench 6 Single Core

Intel Core i9 9940X +30%

1328

Intel Core i7 6950X

1020

Geekbench 6 Multi Core

Intel Core i9 9940X +45%

9787

Intel Core i7 6950X

6726

Geekbench 5 Single Core

Intel Core i9 9940X +22%

1189

Intel Core i7 6950X

968

Geekbench 5 Multi Core

Intel Core i9 9940X +55%

14374

Intel Core i7 6950X

9253

Passmark CPU Single Core

Intel Core i9 9940X +11%

2608

Intel Core i7 6950X

2330

Passmark CPU Multi Core

Intel Core i9 9940X +63%

28355

Intel Core i7 6950X

17362

Intel Core i9 9940X

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Intel Core i7 6950X

General Parameters

Oct 2018

Release Date

May 2016

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Broadwell E

i9-9940X

Processor Number

i7-6950X

LGA-2066

Socket

LGA-2011-3

N/A

Integrated Graphics

N/A

Package

14 nm

Manufacturing Process

14 nm

LGA-2066

Socket

LGA-2011-3

165 W

Power Consumption

140 W

88 °C

Peak Operating Temperature

-

CPU Performance

14

Performance Cores

10

28

Performance Core Threads

20

3.3 GHz

Performance Core Base Frequency

3.0 GHz

4.4 GHz

Performance Core Turbo Frequency

3.5 GHz

14

Total Core Count

10

28

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

30x

64 K per core

L1 Cache

32 K per core

1 MB per core

L2 Cache

256 K per core

20 MB shared

L3 Cache

25 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR4-2666

Memory Types

DDR4-2133

128 GB

Max Memory Size

128 GB

4

Max Memory Channels

4

85 GB/s

Max Memory Bandwidth

76.8 GB/s

No

ECC Memory Support

No

Miscellaneous

Intel Core i9 9940X

Official Website

Intel Core i7 6950X

3.0

PCIe Version

3.0

44

PCIe Lanes

40

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

Extended Instruction Set

-

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