Intel Core i9 12900 vs Intel Core i5 9400T

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We compared two desktop CPUs: Intel Core i9 12900 with 16 cores 2.4GHz and Intel Core i5 9400T with 6 cores 1.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 12900 's Advantages

Released 2 years and 9 months late

Higher specification of memory (DDR5-4800 vs DDR4-2666)

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

Newer PCIe version (5 vs 3.0)

Higher base frequency (2.4GHz vs 1.8GHz)

Larger L3 cache size (30MB vs 9MB)

More modern manufacturing process (10nm vs 14nm)

Intel Core i5 9400T 's Advantages

Integrated graphics card

Lower TDP (35W vs 65W)

Score

Benchmark

Geekbench 6 Single Core

Intel Core i9 12900 +130%

2727

Intel Core i5 9400T

1185

Geekbench 6 Multi Core

Intel Core i9 12900 +221%

13396

Intel Core i5 9400T

4161

Intel Core i9 12900

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Intel Core i5 9400T

General Parameters

Jan 2022

Release Date

Apr 2019

Intel

Manufacturer

Intel

Desktop

Type

Desktop

-

Instruction Set

x86-64

Alder Lake-S

Core Architecture

Coffee Lake

-

Processor Number

i5-9400T

Intel Socket 1700

Socket

LGA-1151

UHD Graphics 770

Integrated Graphics

UHD Graphics 630

Core i9 (Alder Lake-S)

Generation

-

Package

10 nm

Manufacturing Process

14 nm

Intel Socket 1700

Socket

LGA-1151

65 W

Power Consumption

35 W

72 °C

Peak Operating Temperature

100 °C

Intel

Foundry

-

215 mm²

Die Size

-

FC-LGA16A

Package

-

CPU Performance

8

Performance Cores

6

16

Performance Core Threads

6

2.4 GHz

Performance Core Base Frequency

1.8 GHz

5.1 GHz

Performance Core Turbo Frequency

3.4 GHz

8

Efficiency Cores

-

8

Efficiency Core Threads

-

1800 MHz

Efficiency Core Base Frequency

-

3.8 GHz

Efficiency Core Turbo Frequency

-

16

Total Core Count

6

24

Total Thread Count

6

100 MHz

Bus Frequency

100 MHz

24.0

Multiplier

18x

80 KB per core

L1 Cache

64 K per core

1.25 MB per core

L2 Cache

256 K per core

30 MB shared

L3 Cache

9 MB shared

Yes

Unlocked Multiplier

No

1

SMP

-

Memory Parameters

DDR4-3200, DDR5-4800

Memory Types

DDR4-2666

-

Max Memory Size

128 GB

2

Max Memory Channels

2

76.8 GB/s

Max Memory Bandwidth

41.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

-

GPU Max Dynamic Frequency

1050 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

0.38 TFLOPS

Miscellaneous

-

Official Website

Intel Core i5 9400T

5

PCIe Version

3.0

20

PCIe Lanes

16

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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