Intel Core i9 7900X vs Intel Core i7 6850K

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We compared two desktop CPUs: Intel Core i9 7900X with 10 cores 3.3GHz and Intel Core i7 6850K with 6 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 7900X 's Advantages

Released 1 years late

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

Larger memory bandwidth (79.47GB/s vs 76.8GB/s)

Intel Core i7 6850K 's Advantages

Higher base frequency (3.6GHz vs 3.3GHz)

Larger L3 cache size (15MB vs 14MB)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 7900X +22%

1203

Intel Core i7 6850K

979

Cinebench R23 Multi Core

Intel Core i9 7900X +62%

11804

Intel Core i7 6850K

7282

Geekbench 6 Single Core

Intel Core i9 7900X +34%

1323

Intel Core i7 6850K

986

Geekbench 6 Multi Core

Intel Core i9 7900X +120%

8536

Intel Core i7 6850K

3877

Geekbench 5 Single Core

Intel Core i9 7900X +14%

1127

Intel Core i7 6850K

988

Geekbench 5 Multi Core

Intel Core i9 7900X +73%

10189

Intel Core i7 6850K

5881

Passmark CPU Single Core

Intel Core i9 7900X +6%

2556

Intel Core i7 6850K

2409

Passmark CPU Multi Core

Intel Core i9 7900X +84%

20991

Intel Core i7 6850K

11382

Intel Core i9 7900X

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Intel Core i7 6850K

General Parameters

May 2017

Release Date

May 2016

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Broadwell E

i9-7900X

Processor Number

i7-6850K

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

140 W

Power Consumption

140 W

95 °C

Peak Operating Temperature

-

CPU Performance

10

Performance Cores

6

20

Performance Core Threads

12

3.3 GHz

Performance Core Base Frequency

3.6 GHz

4.3 GHz

Performance Core Turbo Frequency

3.8 GHz

10

Total Core Count

6

20

Total Thread Count

12

100 MHz

Bus Frequency

-

33x

Multiplier

36x

64 K per core

L1 Cache

32 K per core

1 MB per core

L2 Cache

256 K per core

14 MB shared

L3 Cache

15 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

79.47 GB/s

Max Memory Bandwidth

76.8 GB/s

No

ECC Memory Support

No

Miscellaneous

Intel Core i9 7900X

Official Website

Intel Core i7 6850K

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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