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Intel Core i5-12400 vs Intel Core i5-2400

Last updated: 2026-07-04

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Intel Core i5-2400 (Sandy Bridge S) was manufactured in 32 nm in the first quarter of 2011. It offers 4 cores, 4 threads, PCIe 2.0, 21 GB/s memory bandwidth, and Intel HD Graphics 2000.

Intel Core i5-12400 (Alder Lake S) was released in 10 nm in the first quarter of 2022. This processor features 6 cores, 12 threads, supports PCIe 5.0, achieves 77 GB/s memory bandwidth, and offers Intel UHD Graphics 730.

In single-core and multi-core benchmarks, the Intel Core i5-12400 outperforms the Intel Core i5-2400 by well over 100 percent. Even in gaming, the Intel Core i5-12400 offers better performance thanks to a more advanced architecture and higher memory bandwidth. Despite its superior performance, the Intel Core i5-12400 is more efficient (base TDP 65 W vs.

95 W). The Intel Core i5-2400 is now only inexpensive used. As a new part in the mid-price segment, the Intel Core i5-12400 offers good value for money. The Intel Core i5-2400 is an outdated CPU for budget-conscious upgrades of old systems. The Intel Core i5-12400 is a modern, powerful processor for gaming and multitasking.

For new systems, the Intel Core i5-12400 is the clear recommendation.

Intel Core i5-2400

Sandy Bridge S architecture
32 nm manufacturing
4 cores and 4 threads
PCIe 2.0 support

Intel Core i5-12400

Alder Lake S architecture
10 nm manufacturing
6 cores and 12 threads
PCIe 5.0 support

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 1 - 100 %

Intel Core i5-12400

Rank 2 - 36 %

Intel Core i5-2400

Multi-core performance

6C / 12T · 2.50 GHz

4,737

4C / 4T · 3.10 GHz

1,230

More benchmarks

Cinebench 2026 (ST)
218 entries

Cinebench 2026 (MC)
219 entries

Cinebench 2024 (SC)
427 entries

Cinebench 2024 (MC)
422 entries

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Cinebench R20 (SC)
666 entries

Geekbench 5 (SC)
2,512 entries

Cinebench R20 (MC)
615 entries

Geekbench 5 (MC)
2,483 entries

FP32 SP (iGPU)
2,219 entries

3DMark Timespy (iGPU)
534 entries

Blender 3.1 Benchmark
213 entries

PassMark CPU-Mark
2,504 entries

CPU-Z Benchmark 17 (SC)
250 entries

CPU-Z Benchmark 17 (MC)
751 entries

V-Ray CPU-Render
251 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Geekbench 3 (SC)
945 entries

Geekbench 3 (MC)
941 entries

CPU performance per watt (efficiency)
140 entries

Specifications

At a glance

Wischen	Intel Core i5-12400	Intel Core i5-2400
Family	Intel Core i5 (336)	Intel Core i5 (336)
CPU group	Intel Core i 12000 (34)	Intel Core i 2000 (28)
Architecture	Alder Lake S	Sandy Bridge S
Technology	10 nm	32 nm
Segment	Desktop	Desktop
Socket	LGA 1700	LGA 1155
Predecessor	Intel Core i5-11400
Successor	Intel Core i5-13400

CPU Cores and Base Frequency

Wischen	Intel Core i5-12400	Intel Core i5-2400
CPU Cores / Threads	6 / 12	4 / 4
Hyperthreading / SMT	✓	✗
Core architecture	normal	normal
Cores:	6x Golden Cove	4x
Frequency:	2.50 GHz	3.10 GHz
Turbo (1 Core):	4.40 GHz	3.40 GHz
Turbo (All Cores):	4.00 GHz
L2-Cache	7.50 MB
L3-Cache	18.00 MB	6.00 MB
Overclocking	✗	✗

Integrated graphics (iGPU)

Wischen	Intel Core i5-12400	Intel Core i5-2400
GPU name	Intel UHD Graphics 730	Intel HD Graphics 2000
GPU frequency	0.30 - 1.45 GHz	0.85 - 1.10 GHz
CUs / Shader	24 / 192	6 / 48
Raytracing	✗	✗
Max. displays	3	2
Max. GPU Memory	64 GB	2 GB
Technology	14 nm	32 nm
Release date	Q1/2021	Q1/2011

NPU AI performance

Wischen	Intel Core i5-12400	Intel Core i5-2400
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core i5-12400	Intel Core i5-2400
Memory	DDR5-4800 (76.8 GB/s) DDR4-3200 (51.2 GB/s)	DDR3-1333 (21.3 GB/s)
Max. Memory	128 GB	32 GB
Memory channels	2	2
ECC	No	No
PCIe	5.0 x 20	2.0 x 16
PCIe Bandwidth	78.8 GB/s	8.0 GB/s

Thermal Management

Wischen	Intel Core i5-12400	Intel Core i5-2400
TDP	65 W	95 W
TDP (PL2)	117 W
TDP up
TDP down
T. junction max.	100 °C

Technical details

Wischen	Intel Core i5-12400	Intel Core i5-2400
Chip design	Monolithic	Monolithic
AES-NI	✓	✓
Operating systems	Windows 10, Windows 11, Linux	Windows 10, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX2, AVX2+	SSE4.1, SSE4.2, AVX
Release date	Q1/2022	Q1/2011
Release price	192 $
Documents	Technical data sheet	Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core i5-12400 is 4.4 stars (181 ratings), while Intel Core i5-2400 has received 3.7 stars (45 ratings).

Click on the stars to rate one or both processors.

Intel Core i5-12400
6C / 12T · 2.50 - 4.40 GHz

★★★★★

Intel Core i5-2400
4C / 4T · 3.10 - 3.40 GHz

★★★★★