Intel Core i5 8400 vs Intel Core Ultra 7 265K

VS

Intel Core i5 8400

Intel Core Ultra 7 265K

We compared two desktop CPUs: Intel Core i5 8400 with 6 cores 2.8GHz and Intel Core Ultra 7 265K with 20 cores 3.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i5 8400 's Advantages

Lower TDP (65W vs 125W)

Intel Core Ultra 7 265K 's Advantages

Released 7 years late

Better graphics card performance

Higher specification of memory (6400 vs 2666)

Larger memory bandwidth (102.4GB/s vs 41.6GB/s)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (3.9GHz vs 2.8GHz)

Larger L3 cache size (30MB vs 9MB)

More modern manufacturing process (3nm vs 14nm)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i5 8400

1026

Intel Core Ultra 7 265K +124%

2304

Cinebench R23 Multi Core

Intel Core i5 8400

5798

Intel Core Ultra 7 265K +526%

36335

Geekbench 6 Single Core

Intel Core i5 8400

1298

Intel Core Ultra 7 265K +143%

3156

Geekbench 6 Multi Core

Intel Core i5 8400

4677

Intel Core Ultra 7 265K +356%

21364

Blender

Intel Core i5 8400

83

Intel Core Ultra 7 265K +485%

486

Intel Core i5 8400

VS

Intel Core Ultra 7 265K

General Parameters

Oct 2017

Release Date

Oct 2024

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Arrow Lake

i5-8400

Processor Number

265K

LGA-1151

Socket

FCLGA-1851

UHD Graphics 630

Integrated Graphics

Arc Xe2 (Arrow Lake-S)

-

Generation

Ultra 7(Arrow Lake)

Package

14 nm

Manufacturing Process

3 nm

65 W

Power Consumption

125 W

-

Max Turbo Power Consumption

250 W

100 °C

Peak Operating Temperature

105 °C

-

Foundry

TSMC

CPU Performance

6

Performance Cores

8

6

Performance Core Threads

8

2.8 GHz

Performance Core Base Frequency

3.9 GHz

4 GHz

Performance Core Turbo Frequency

5.4 GHz

-

Efficiency Cores

12

-

Efficiency Core Threads

12

-

Efficiency Core Base Frequency

3.3 GHz

-

Efficiency Core Turbo Frequency

4.6 GHz

6

Total Core Count

20

6

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

28x

Multiplier

39

64 K per core

L1 Cache

112 K per core

256 K per core

L2 Cache

3 MB per core

9 MB shared

L3 Cache

30 MB shared

No

Unlocked Multiplier

Yes

-

SMP

1

Memory Parameters

DDR4-2666

Memory Types

DDR5-6400

128 GB

Max Memory Size

192 GB

2

Max Memory Channels

2

41.6 GB/s

Max Memory Bandwidth

102.4 GB/s

No

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

350 MHz

GPU Base Frequency

300 MHz

1050 MHz

GPU Max Dynamic Frequency

2000 MHz

192

Shader Units

512

24

Texture Units

16

3

Raster Operation Units

8

24

Execution Units

64

15 W

Power Consumption

-

4096x2304 - 60 Hz

Max Resolution

-

0.38 TFLOPS

Graphics Performance

2.05 TFLOPS

Miscellaneous

Intel Core i5 8400

Official Website

Intel Core Ultra 7 265K

3.0

PCIe Version

5.0

16

PCIe Lanes

24

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

-

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