Intel Core i5 6400 vs Intel Core i5 12400T

VS

Intel Core i5 6400

Intel Core i5 12400T

We compared two desktop CPUs: Intel Core i5 6400 with 4 cores 2.7GHz and Intel Core i5 12400T 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 i5 6400 's Advantages

Higher base frequency (2.7GHz vs 1.8GHz)

Intel Core i5 12400T 's Advantages

Released 6 years and 4 months late

Higher specification of memory (4800 vs 2133)

Larger memory bandwidth (76.8GB/s vs 34.1GB/s)

Newer PCIe version (5 vs 3.0)

Larger L3 cache size (18MB vs 6MB)

More modern manufacturing process (10nm vs 14nm)

Lower TDP (35W vs 65W)

Score

Benchmark

Geekbench 6 Single Core

Intel Core i5 6400

1143

Intel Core i5 12400T +78%

2041

Geekbench 6 Multi Core

Intel Core i5 6400

3312

Intel Core i5 12400T +103%

6750

Intel Core i5 6400

VS

Intel Core i5 12400T

General Parameters

Sep 2015

Release Date

Jan 2022

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

-

Skylake

Core Architecture

Alder Lake-S

i5-6400

Processor Number

-

LGA-1151

Socket

Intel Socket 1700

HD Graphics 530

Integrated Graphics

UHD Graphics 730

-

Generation

Core i5 (Alder Lake-S)

Package

14 nm

Manufacturing Process

10 nm

65 W

Power Consumption

35 W

-

Foundry

Intel

-

Die Size

163 mm²

CPU Performance

4

Performance Cores

-

4

Performance Core Threads

-

2.7 GHz

Performance Core Base Frequency

1.8 GHz

3.3 GHz

Performance Core Turbo Frequency

4.2 GHz

4

Total Core Count

6

4

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

27x

Multiplier

18.0

64 K per core

L1 Cache

80 KB per core

256 K per core

L2 Cache

1.25 MB per core

6 MB shared

L3 Cache

18 MB shared

No

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR4-2133, DDR3L-1600

Memory Types

DDR4-3200, DDR5-4800

64 GB

Max Memory Size

-

2

Max Memory Channels

2

34.1 GB/s

Max Memory Bandwidth

76.8 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

300 MHz

950 MHz

GPU Max Dynamic Frequency

1450 MHz

-

Execution Units

24

Miscellaneous

Intel Core i5 6400

Official Website

Intel Core i5 12400T

3.0

PCIe Version

5

16

PCIe Lanes

20

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

-

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