Intel Core i5 12600K vs i5 12400

We compared two desktop CPUs: the 3.7 GHz Intel Core i5 12600K with 10-cores against the 2.5 GHz i5 12400 with 6-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 12400 and 12600K
Advantages of Intel Core i5 12600K
  • Unlocked multiplier
  • Has 4 more physical cores
  • 18% faster in a single-core Geekbench v5 test - 1915 vs 1623 points
  • 11% higher Turbo Boost frequency (4.9 GHz vs 4.4 GHz)
  • Has 2 MB larger L3 cache size
Advantages of Intel Core i5 12400
  • Consumes up to 48% less energy than the Core i5 12600K – 65 vs 125 Watt


Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
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Full technical specification of Intel Core i5 12600K and i5 12400


Vendor Intel Intel
Released October 27, 2021 January 4, 2022
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Alder Lake-S Alder Lake-S
Model number i5-12600K i5-12400
Socket LGA-1700 LGA-1700
Integrated GPU UHD Graphics 770 UHD Graphics 730


Cores 10 6
Threads 16 12
Base Frequency 3.7 GHz 2.5 GHz
Turbo Boost Frequency 4.9 GHz 4.4 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 37x 25x
L1 Cache 80K (per core) 80K (per core)
L2 Cache 9728K (shared) 1280K (per core)
L3 Cache 20MB (shared) 18MB (shared)
Unlocked Multiplier Yes No


Fabrication process 10 nm 10 nm
TDP 125 W 65 W
Max. temperature 100°C 100°C


Integrated Graphics Intel UHD Graphics 770 Intel UHD Graphics 730
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1450 MHz 1450 MHz
Shading Units 256 192
TMUs 16 48
ROPs 8 24
Execution Units 32 24
TGP 15 W 15 W
Max. Resolution - 3840x2160 - 60 Hz

Memory support

Memory types DDR5-4800, DDR4-3200 DDR5-4800, DDR4-3200
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 76.8 GB/s 76.8 GB/s
ECC Support Yes No


Official site Intel Core i5 12600K official page Intel Core i5 12400 official page
PCI Express Version 5.0 5.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
198 (67.3%)
96 (32.7%)
Total votes: 294


So which CPU will you choose: Intel Core i5 12400 or i5 12600K?
ThunderStorm 13 September 2022 18:27
Actually, I owned both Processor PC, and both PC run the same game with the Raytracing Ultra setting, I feel 12400 is slightly smooth than 12600K. Daily web browsing, words, and excel processing are fine without a difference. PC1 12600K + 16GB 3600mhz + RTX 3060ti (2x Fan) 1TB NVME + 2TB HDD + 2TB SSD LG Ultra Wide 34" 2560x1080 Curve 144hz 240mm AIO PC2 12400 + 16GB 3600mhz + RTX 3070ti (3x Fan) 512GB NVME + 512GB NVME + 2TB SSD HP X34 Ultra Wide 34" 3440x1440 165hz 240mm AIO
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