Intel Core i7 7800X vs Intel Core i5 7400

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We compared two desktop CPUs: Intel Core i7 7800X with 6 cores 3.5GHz and Intel Core i5 7400 with 4 cores 3.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 7800X 's Advantages

Larger memory bandwidth (79.47GB/s vs 35.76GB/s)

Higher base frequency (3.5GHz vs 3.0GHz)

Larger L3 cache size (8MB vs 6MB)

Intel Core i5 7400 's Advantages

Integrated graphics card

Higher specification of memory (DDR4-2400 vs DDR4-2400)

Lower TDP (65W vs 140W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 7800X +2%

963

Intel Core i5 7400

937

Cinebench R23 Multi Core

Intel Core i7 7800X +114%

7269

Intel Core i5 7400

3382

Geekbench 6 Single Core

Intel Core i7 7800X +12%

1362

Intel Core i5 7400

1215

Geekbench 6 Multi Core

Intel Core i7 7800X +72%

6082

Intel Core i5 7400

3517

Geekbench 5 Single Core

Intel Core i7 7800X +21%

1069

Intel Core i5 7400

877

Geekbench 5 Multi Core

Intel Core i7 7800X +113%

6578

Intel Core i5 7400

3079

Passmark CPU Single Core

Intel Core i7 7800X +15%

2409

Intel Core i5 7400

2090

Passmark CPU Multi Core

Intel Core i7 7800X +134%

12894

Intel Core i5 7400

5491

Intel Core i7 7800X

VS

Intel Core i5 7400

General Parameters

May 2017

Release Date

Jan 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Kaby Lake

i7-7800X

Processor Number

i5-7400

LGA-2066

Socket

LGA-1151

N/A

Integrated Graphics

HD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

LGA-2066

Socket

LGA-1151

140 W

Power Consumption

65 W

100 °C

Peak Operating Temperature

100 °C

CPU Performance

6

Performance Cores

4

12

Performance Core Threads

4

3.5 GHz

Performance Core Base Frequency

3.0 GHz

4 GHz

Performance Core Turbo Frequency

3.5 GHz

6

Total Core Count

4

12

Total Thread Count

4

100 MHz

Bus Frequency

100 MHz

35x

Multiplier

30x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

8 MB shared

L3 Cache

6 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR4-2400

Memory Types

DDR4-2400, DDR3L-1600

128 GB

Max Memory Size

64 GB

4

Max Memory Channels

2

79.47 GB/s

Max Memory Bandwidth

35.76 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

-

GPU Max Dynamic Frequency

1000 MHz

-

Shader Units

192

-

Texture Units

24

-

Raster Operation Units

3

-

Execution Units

24

-

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

-

Graphics Performance

0.44 TFLOPS

Miscellaneous

Intel Core i7 7800X

Official Website

Intel Core i5 7400

3.0

PCIe Version

3.0

28

PCIe Lanes

16

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

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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