Intel Core i7 7700K vs Intel Core i5 6400

VS

Intel Core i7 7700K

Intel Core i5 6400

We compared two desktop CPUs: Intel Core i7 7700K with 4 cores 4.2GHz and Intel Core i5 6400 with 4 cores 2.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 7700K 's Advantages

Released 1 years and 4 months late

Higher specification of memory (2400 vs 2133)

Larger memory bandwidth (35.76GB/s vs 34.1GB/s)

Higher base frequency (4.2GHz vs 2.7GHz)

Larger L3 cache size (8MB vs 6MB)

Intel Core i5 6400 's Advantages

Lower TDP (65W vs 91W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 7700K +34%

1209

Intel Core i5 6400

898

Cinebench R23 Multi Core

Intel Core i7 7700K +82%

5881

Intel Core i5 6400

3214

Geekbench 6 Single Core

Intel Core i7 7700K +36%

1557

Intel Core i5 6400

1143

Geekbench 6 Multi Core

Intel Core i7 7700K +58%

5260

Intel Core i5 6400

3312

Blender

Intel Core i7 7700K +108%

102

Intel Core i5 6400

49

Geekbench 5 Single Core

Intel Core i7 7700K +32%

1129

Intel Core i5 6400

853

Geekbench 5 Multi Core

Intel Core i7 7700K +67%

4705

Intel Core i5 6400

2805

Passmark CPU Single Core

Intel Core i7 7700K +38%

2712

Intel Core i5 6400

1961

Passmark CPU Multi Core

Intel Core i7 7700K +86%

9594

Intel Core i5 6400

5151

Intel Core i7 7700K

VS

Intel Core i5 6400

General Parameters

Jan 2017

Release Date

Sep 2015

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Kaby Lake

Core Architecture

Skylake

i7-7700K

Processor Number

i5-6400

LGA-1151

Socket

LGA-1151

HD Graphics 630

Integrated Graphics

HD Graphics 530

Package

14 nm

Manufacturing Process

14 nm

91 W

Power Consumption

65 W

100 °C

Peak Operating Temperature

-

CPU Performance

4

Performance Cores

4

8

Performance Core Threads

4

4.2 GHz

Performance Core Base Frequency

2.7 GHz

4.5 GHz

Performance Core Turbo Frequency

3.3 GHz

4

Total Core Count

4

8

Total Thread Count

4

42 MHz

Bus Frequency

100 MHz

100x

Multiplier

27x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

8 MB shared

L3 Cache

6 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR4-2400, DDR3L-1600

Memory Types

DDR4-2133, DDR3L-1600

64 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

35.76 GB/s

Max Memory Bandwidth

34.1 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

350 MHz

GPU Base Frequency

-

1150 MHz

GPU Max Dynamic Frequency

950 MHz

192

Shader Units

-

24

Texture Units

-

3

Raster Operation Units

-

24

Execution Units

-

15 W

Power Consumption

-

4096x2304 - 60 Hz

Max Resolution

-

0.44 TFLOPS

Graphics Performance

-

Miscellaneous

Intel Core i7 7700K

Official Website

Intel Core i5 6400

3.0

PCIe Version

3.0

16

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

Related CPU Comparisons

1

Intel Core i7 7700K vs Intel Core i5 7500

2

Intel Core i7 7700K vs Intel Pentium G4620

3

Intel Core i7 7700K vs Intel Core i9 10900K

4

Intel Core i7 7700K vs AMD Ryzen 5 5625U

5

Intel Core i7 7700K vs AMD Ryzen 3 5425U

6

Intel Core i7 7700K vs Intel Core i7 12700

7

Intel Core i7 7700K vs Intel Core i9 7960X

8

Intel Core i7 7700K vs AMD Ryzen 7 5800X

9

Intel Core i7 7700K vs Intel Core i9 9900X

10

Intel Core i7 7700K vs Intel Core 5 130HL

Related News

1

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

2

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

3

CXMT Reportedly Achieves 80% Yield in DDR5 Production

4

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

5

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

6

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

7

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

8

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

9

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

10

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption