Intel Core i5 8400T vs Intel Core i5 1235U

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We compared the desktop Intel Core i5 8400T with 6 cores 1.7GHz and the laptop Intel Core i5 1235U with 10 cores 1.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i5 8400T's Advantages

Higher base frequency (1.7GHz vs 1.3GHz)

Intel Core i5 1235U's Advantages

Released 3 years and 10 months late

Better graphics card performance

Higher specification of memory (LPDDR5-5200 vs DDR4-2666)

Larger memory bandwidth (76.8GB/s vs 41.6GB/s)

Newer PCIe version (4.0 vs 3.0)

Larger L3 cache size (12MB vs 9MB)

More modern manufacturing process (10nm vs 14nm)

Lower TDP (15W vs 35W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i5 8400T

774

Intel Core i5 1235U +109%

1625

Cinebench R23 Multi Core

Intel Core i5 8400T

3638

Intel Core i5 1235U +80%

6564

Geekbench 6 Single Core

Intel Core i5 8400T

1120

Intel Core i5 1235U +89%

2123

Geekbench 6 Multi Core

Intel Core i5 8400T

3670

Intel Core i5 1235U +80%

6631

Blender

Intel Core i5 8400T

35

Intel Core i5 1235U +302%

141

Geekbench 5 Single Core

Intel Core i5 8400T

886

Intel Core i5 1235U +77%

1572

Geekbench 5 Multi Core

Intel Core i5 8400T

4000

Intel Core i5 1235U +56%

6255

Passmark CPU Single Core

Intel Core i5 8400T

1917

Intel Core i5 1235U +71%

3279

Passmark CPU Multi Core

Intel Core i5 8400T

7447

Intel Core i5 1235U +82%

13604

Intel Core i5 8400T

VS

Intel Core i5 1235U

General Parameters

Apr 2018

Release Date

Feb 2022

Intel

Manufacturer

Intel

Desktop

Type

Laptop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Alder Lake-U

i5-8400T

Processor Number

i5-1235U

LGA-1151

Socket

BGA-1744

UHD Graphics 630

Integrated Graphics

Iris Xe Graphics (80EU)

Package

14 nm

Manufacturing Process

10 nm

LGA-1151

Socket

BGA-1744

35 W

Power Consumption

15 W

100 °C

Peak Operating Temperature

100 °C

CPU Performance

6

Performance Cores

2

6

Performance Core Threads

-

1.7 GHz

Performance Core Base Frequency

1.3 GHz

3.3 GHz

Performance Core Turbo Frequency

4.4 GHz

-

Efficiency Cores

8

6

Total Core Count

10

6

Total Thread Count

12

100MHz

Bus Frequency

100MHz

17x

Multiplier

13x

64K per core

L1 Cache

80K per core

256K per core

L2 Cache

1280K per core

9MB shared

L3 Cache

12MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR4-2666

Memory Types

DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267

128GB

Max Memory Size

64GB

2

Max Memory Channels

2

41.6 GB/s

Max Memory Bandwidth

76.8 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

True

Integrated Graphics

True

350 MHz

GPU Base Frequency

300 MHz

1050 MHz

GPU Max Dynamic Frequency

1200 MHz

192

Shader Units

640

24

Texture Units

40

3

Raster Operation Units

20

24

Execution Units

80

15 W

Power Consumption

15 W

4096x2304 - 60 Hz

Max Resolution

-

0.38 TFLOPS

Graphics Performance

1.41 TFLOPS

Miscellaneous

Intel Core i5 8400T

Official Website

Intel Core i5 1235U

3.0

PCIe Version

4.0

16

PCIe Lanes

20

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

-

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