Intel Core i7 6900K vs Intel Core i7 7740X

VS

We compared two desktop CPUs: Intel Core i7 6900K with 8 cores 3.2GHz and Intel Core i7 7740X with 4 cores 4.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 6900K 's Advantages

Larger memory bandwidth (76.8GB/s vs 42.7GB/s)

Larger L3 cache size (20MB vs 8MB)

Intel Core i7 7740X 's Advantages

Released 1 years late

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

Higher base frequency (4.3GHz vs 3.2GHz)

Lower TDP (112W vs 140W)

Score

Benchmark

Geekbench 6 Single Core

Intel Core i7 6900K

1286

Intel Core i7 7740X +20%

1553

Geekbench 6 Multi Core

Intel Core i7 6900K +35%

7470

Intel Core i7 7740X

5516

Geekbench 5 Single Core

Intel Core i7 6900K

961

Intel Core i7 7740X +34%

1291

Geekbench 5 Multi Core

Intel Core i7 6900K +46%

7327

Intel Core i7 7740X

5001

Passmark CPU Single Core

Intel Core i7 6900K

2310

Intel Core i7 7740X +19%

2759

Passmark CPU Multi Core

Intel Core i7 6900K +45%

14258

Intel Core i7 7740X

9824

Intel Core i7 6900K

VS

Intel Core i7 7740X

General Parameters

May 2016

Release Date

May 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Broadwell E

Core Architecture

Kaby Lake

i7-6900K

Processor Number

i7-7740X

LGA-2011-3

Socket

LGA-2066

N/A

Integrated Graphics

N/A

Package

14 nm

Manufacturing Process

14 nm

LGA-2011-3

Socket

LGA-2066

140 W

Power Consumption

112 W

-

Peak Operating Temperature

100 °C

CPU Performance

8

Performance Cores

4

16

Performance Core Threads

8

3.2 GHz

Performance Core Base Frequency

4.3 GHz

3.7 GHz

Performance Core Turbo Frequency

4.5 GHz

8

Total Core Count

4

16

Total Thread Count

8

100 MHz

Bus Frequency

-

32x

Multiplier

43x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

20 MB shared

L3 Cache

8 MB shared

No

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2133

Memory Types

DDR4-2666

128 GB

Max Memory Size

64 GB

4

Max Memory Channels

2

76.8 GB/s

Max Memory Bandwidth

42.7 GB/s

No

ECC Memory Support

No

Miscellaneous

Intel Core i7 6900K

Official Website

Intel Core i7 7740X

3.0

PCIe Version

3.0

40

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

Related CPU Comparisons

1

Intel Core i7 6900K vs AMD Ryzen 7 Pro 4750G

2

Intel Core i7 5960X vs Intel Core i7 6900K

3

Intel Core i9 12900F vs Intel Core i7 6900K

4

Intel Core i7 6900K vs Intel Core i5 14400T

5

Intel Core i7 6900K vs Intel Core i9 7960X

6

AMD Ryzen 7 7800X3D vs Intel Core i7 6900K

7

Intel Core i7 6900K vs Intel Core i5 8400

8

Intel Core i7 7740X vs Intel Core i7 7700

9

Intel Core i7 6900K vs Intel Core i9 12900

10

Intel Core i7 6900K vs AMD Ryzen 7 5700