Intel Core i5 8400 vs Intel Core i9 12900

VS

Intel Core i5 8400

Intel Core i9 12900

We compared two desktop CPUs: Intel Core i5 8400 with 6 cores 2.8GHz and Intel Core i9 12900 with 16 cores 2.4GHz . 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

Integrated graphics card

Higher base frequency (2.8GHz vs 2.4GHz)

Intel Core i9 12900 's Advantages

Released 4 years and 3 months late

Higher specification of memory (4800 vs 2666)

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

Newer PCIe version (5 vs 3.0)

Larger L3 cache size (30MB vs 9MB)

More modern manufacturing process (10nm vs 14nm)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i5 8400

1026

Intel Core i9 12900 +93%

1988

Cinebench R23 Multi Core

Intel Core i5 8400

5798

Intel Core i9 12900 +356%

26454

Geekbench 6 Single Core

Intel Core i5 8400

1298

Intel Core i9 12900 +110%

2727

Geekbench 6 Multi Core

Intel Core i5 8400

4677

Intel Core i9 12900 +186%

13396

Intel Core i5 8400

VS

Intel Core i9 12900

General Parameters

Oct 2017

Release Date

Jan 2022

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

-

Coffee Lake

Core Architecture

Alder Lake-S

i5-8400

Processor Number

-

LGA-1151

Socket

Intel Socket 1700

UHD Graphics 630

Integrated Graphics

UHD Graphics 770

-

Generation

Core i9 (Alder Lake-S)

Package

14 nm

Manufacturing Process

10 nm

65 W

Power Consumption

65 W

100 °C

Peak Operating Temperature

72 °C

-

Foundry

Intel

-

Die Size

215 mm²

CPU Performance

6

Performance Cores

8

6

Performance Core Threads

16

2.8 GHz

Performance Core Base Frequency

2.4 GHz

4 GHz

Performance Core Turbo Frequency

5.1 GHz

-

Efficiency Cores

8

-

Efficiency Core Threads

8

-

Efficiency Core Base Frequency

1800 MHz

-

Efficiency Core Turbo Frequency

3.8 GHz

6

Total Core Count

16

6

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

28x

Multiplier

24.0

64 K per core

L1 Cache

80 KB per core

256 K per core

L2 Cache

1.25 MB per core

9 MB shared

L3 Cache

30 MB shared

No

Unlocked Multiplier

Yes

-

SMP

1

Memory Parameters

DDR4-2666

Memory Types

DDR4-3200, DDR5-4800

128 GB

Max Memory Size

-

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

-

350 MHz

GPU Base Frequency

-

1050 MHz

GPU Max Dynamic Frequency

-

192

Shader Units

-

24

Texture Units

-

3

Raster Operation Units

-

24

Execution Units

-

15 W

Power Consumption

-

4096x2304 - 60 Hz

Max Resolution

-

0.38 TFLOPS

Graphics Performance

-

Miscellaneous

Intel Core i5 8400

Official Website

-

3.0

PCIe Version

5

16

PCIe Lanes

20

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

-

Related CPU Comparisons

1

Intel Core i5 8400 vs Intel Core i5 10600K

2

Intel Core i5 8400 vs Intel Core i3 10100

3

Intel Core i5 8400 vs Intel Core i5 10600KF

4

Intel Core i5 8400 vs Intel Core i7 11700

5

Intel Core i5 8400 vs Intel Pentium G4400

6

Intel Core i5 8400 vs Intel Core i7 12700T

7

Intel Core i5 8400 vs Intel Core i9 10900K

8

Intel Core i5 8400 vs Intel Celeron J4025

9

Intel Core i5 8400 vs Intel Core i9 7900X

10

Intel Core i5 8400 vs Intel Core Ultra 7 265

Related News

1

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

2

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

3

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

4

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

5

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

6

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

7

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

8

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

9

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

10

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU