Home > CPU Comparison > Core i5 12400 or Core i5 10400: what's better?

Intel Core i5 12400 vs i5 10400

49 out of 100
Intel Core i5 12400
VS
33 out of 100
Intel Core i5 10400
Intel Core i5 12400
Intel Core i5 10400

We compared two 6-core desktop CPUs: the 2.5 GHz Intel Core i5 12400 against the 2.9 GHz i5 10400. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

  1. Review
  2. Differences
  3. Performance
  4. Specs
  5. Comments

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
The "iGPU" and "Power Efficiency" have a minor impact on the NanoReview Score for desktop CPU.
NanoReview Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
🔌 Usage Scenario:

Value for money (Beta)

Global average CPU prices are used by default! For better accuracy, enter your current prices and click “Calculate".
Currency
VS
42.6
(Average)
Value Index
27.2
(Mediocre)

Key Differences

What are the key differences between 10400 and 12400
Advantages of Intel Core i5 12400
  • Around 35.2 GB/s (85%) higher theoretical memory bandwidth
  • Newer PCI Express version – 5.0
  • Has 6 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • More powerful Intel UHD Graphics 730 integrated graphics: 0.6 vs 0.4 TFLOPS
  • 50% faster in a single-core Geekbench v6 test - 2245 vs 1499 points
  • More modern manufacturing process – 10 versus 14 nanometers
  • Newer - released 1 year and 8 months later
  • 2% higher Turbo Boost frequency (4.4 GHz vs 4.3 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core i5 12400
vs
Core i5 10400

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench 2026 (Single) 295 -
Cinebench 2026 (Multi) 1710 -
Submit your benchmark results

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Core i5 12400 +50%
2245
Core i5 10400
1499
Geekbench 6 (Multi-Core)
Core i5 12400 +60%
9788
Core i5 10400
6113
File compression 879.2 MB/sec 438.2 MB/sec
Clang compilation 65.6 Klines/sec 47.1 Klines/sec
HTML 5 Browser 223.7 pages/sec 137.5 pages/sec
PDF Renderer 275.6 Mpixels/sec 201.7 Mpixels/sec
Text processing 225.9 pages/sec 148.5 pages/sec
Background blur 49.5 images/sec 33.2 images/sec
Photo processing 81.2 images/sec 54.5 images/sec
Ray tracing 15.1 Mpixels/sec 9.62 Mpixels/sec
Sources: GeekBench [1], [2] – 1015 & 442 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Core i5 12400 +36%
3464
Core i5 10400
2556
Passmark CPU (Multi-Core)
Core i5 12400 +57%
18816
Core i5 10400
11971
Integer math 58.9 GOps/sec 41.7 GOps/sec
Floating point math 45.9 GOps/sec 26.1 GOps/sec
Find prime numbers 67M Primes/sec 33M Primes/sec
Random string sorting 22.6M Strings/sec 23.2M Strings/sec
Data encryption 11.5 GBytes/sec 4 GBytes/sec
Data compression 228 MBytes/sec 186.9 MBytes/sec
Physics 1090 Frames/sec 665 Frames/sec
Extended instructions 15.5B Matrices/sec 12.5B Matrices/sec
Sources: PassMark [3], [4] – 6661 & 6025 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core i5 12400 +46%
166.74
Core i5 10400
113.96

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 9.2 PPW 5.2 PPW
Geekbench 6 Multi / Watt 150.6 PPW 94 PPW
Passmark CPU Mark / Watt 289.5 PPW 184.2 PPW
Blender / Watt 2.57 PPW 1.75 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users
Intel Core i5 12400
DateBenchmarkResult
📘 2026-05-24 (MortalMech)Cinebench 2026295 / 1710
📘 2024-06-27 (Renni)Cinebench 202499 / 598
Add View all (2)
Intel Core i5 10400
DateBenchmarkResult
📘 2025-10-18 (shueizhiyueri)Cinebench 202457 / 338
Add View all (1)

Specifications

Full technical specification of Intel Core i5 12400 and i5 10400

General

Vendor Intel Intel
Released January 4, 2022 May 1, 2020
Type Desktop Desktop
Instruction Set x86-64 x86-64
Codename Alder Lake Comet Lake
Model number i5-12400 i5-10400
Integrated GPU UHD Graphics 730 UHD Graphics 630
Successor - Intel Core Ultra 5 225 - Intel Core Ultra 5 225
Intel CPU rating (#164th place)

CPU

Performance Cores
P-Cores 6 6
P-Threads 12 12
Base Frequency (P) 2.5 GHz 2.9 GHz
Turbo Boost Frequency (P) 4.4 GHz 4.3 GHz
Total
Total Cores 6 6
Total Threads 12 12
Bus Frequency 100 MHz 100 MHz
Multiplier 25x 29x
Bus Bandwidth - 8 GT/s
L1 Cache 80K (per core) 64K (per core)
L2 Cache 1280K (per core) 256K (per core)
L3 Cache 18MB (shared) 12MB (shared)
Unlocked Multiplier No No

Package

Fabrication Process 10 nm 14 nm
TDP (PL1) 65 W 65 W
Max. Boost TDP (PL2) 117 W -
Socket LGA-1700 LGA-1200
Peak Temperature 100°C 100°C
Desktop CPU ranking (109th and 169th place)

iGPU

Integrated Graphics Intel UHD Graphics 730 Intel UHD Graphics 630
GPU Base Clock 300 MHz 350 MHz
GPU Boost Clock 1450 MHz 1100 MHz
Shading Units 192 192
TMUs 48 24
ROPs 24 3
Execution Units 24 24
TGP 15 W 15 W
iGPU FLOPS
Core i5 12400 +50%
0.6 TFLOPS
Core i5 10400
0.4 TFLOPS
More info: UHD Graphics 630 compared to Graphics 730

Memory Support

Memory Types - DDR5-4800
- DDR4-3200		 - DDR4-2666
Max. Memory Size 128 GB 128 GB
Memory Channels 2 2
Max. Memory Bandwidth 76.8 GB/s 41.6 GB/s
ECC Support No No

Misc

Official Site Intel Core i5 12400 official page Intel Core i5 10400 official page
PCI Express Version 5.0 3.0
PCI Express Lanes 20 16

Cast your vote

Choose between two processors
215 (74.1%)
75 (25.9%)
Total votes: 290

Competitors

1. Intel Core i5 10400 vs Intel Core i3 12100 (2)
2. Intel Core i5 10400 vs Intel Core i5 10400F (12)
3. Intel Core i5 12400 vs Intel Core i5 13400
4. Intel Core i5 12400 vs Intel Core i3 14100
5. Intel Core i5 12400 vs Apple M2 Pro
6. Intel Core i5 12400 vs AMD Ryzen 7 5700G (5)
7. Intel Core i5 12400 vs Intel Core i3 13100
8. Intel Core i5 12400 vs Intel Core i5 14400
9. Intel Core i5 12400 vs AMD Ryzen 5 5600G (6)
Compare other CPUs (460+)

Comments

So which CPU will you choose: Intel Core i5 10400 or i5 12400?
🌐 Register your profile and become part of NanoReview community!
EnglishРусский