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 +4%

964

Intel Core i5 7400

921

Cinebench R23 Multi Core

Intel Core i7 7800X +117%

7325

Intel Core i5 7400

3364

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

100MHz

Bus Frequency

100MHz

35x

Multiplier

30x

64K per core

L1 Cache

64K per core

1MB per core

L2 Cache

256K per core

8MB shared

L3 Cache

6MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR4-2400

Memory Types

DDR4-2400, DDR3L-1600

128GB

Max Memory Size

64GB

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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