Intel Core i7 10700K vs i5 12400

We compared two desktop CPUs: the 3.8 GHz Intel Core i7 10700K with 8-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.

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Performance
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 10700K
Advantages of Intel Core i7 10700K
  • Unlocked multiplier
  • Has 2 more physical cores
  • 16% higher Turbo Boost frequency (5.1 GHz vs 4.4 GHz)
Advantages of Intel Core i5 12400
  • Newer - released 1-year and 9-months later
  • Consumes up to 48% less energy than the Core i7 10700K – 65 vs 125 Watt
  • Around 31 GB/s (68%) higher theoretical memory bandwidth
  • Newer PCI Express version – 5.0
  • More modern manufacturing process – 10 versus 14 nanometers
  • 18% faster in a single-core Geekbench v5 test - 1623 vs 1381 points
  • Has 2 MB larger L3 cache size

Benchmarks

Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
1709
Cinebench R23 (Multi-Core)
12654
Passmark CPU (Single-Core)
3529
Passmark CPU (Multi-Core)
19508
Geekbench 5 (Single-Core)
1616
Geekbench 5 (Multi-Core)
By purchasing through links on this site, we may receive a commission from Amazon. This does not affect our assessment methodology.

Specifications

Full technical specification of Intel Core i7 10700K and i5 12400

General

Vendor Intel Intel
Released May 1, 2020 January 4, 2022
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Comet Lake-S Alder Lake-S
Model number i7-10700K i5-12400
Socket LGA-1200 LGA-1700
Integrated GPU UHD Graphics 630 UHD Graphics 730

Performance

Cores 8 6
Threads 16 12
Base Frequency 3.8 GHz 2.5 GHz
Turbo Boost Frequency 5.1 GHz 4.4 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 38x 25x
Bus Bandwidth 8 GT/s -
L1 Cache 64K (per core) 80K (per core)
L2 Cache 256K (per core) 1280K (per core)
L3 Cache 16MB (shared) 18MB (shared)
Unlocked Multiplier Yes No

Power

Fabrication process 14 nm 10 nm
TDP 125 W 65 W
Max. temperature 100°C 100°C

iGPU

Integrated Graphics Intel UHD Graphics 630 Intel UHD Graphics 730
GPU Base Clock 350 MHz 300 MHz
GPU Boost Clock 1200 MHz 1450 MHz
Shading Units 192 192
TMUs 24 48
ROPs 3 24
Execution Units 24 24
TGP 15 W 15 W
Max. Resolution 4096x2304 - 60 Hz 3840x2160 - 60 Hz
iGPU FLOPS
0.38 TFLOPS
0.35 TFLOPS

Memory support

Memory types DDR4-2933 DDR5-4800, DDR4-3200
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 45.8 GB/s 76.8 GB/s
ECC Support No No

Misc

Official site Intel Core i7 10700K official page Intel Core i5 12400 official page
PCI Express Version 3.0 5.0
PCI Express Lanes 16 20

Cast your vote

Choose between two processors
14 (18.7%)
61 (81.3%)
Total votes: 75

Comments

So which CPU will you choose: Intel Core i5 12400 or i7 10700K?
Avatar
I5 12400 vs i7 10700k 08 February 2022 00:26
Overall both cpus are very good. But now the i7 10700k is $350 and the 12400 is only $210. Both have almost the same performance but the 12400 has a better TDP. The extra threads are nice too. Have but if you’re editing photos or videos, gaming, or doing work. The i5 12400 is better.
+5 Reply
Promotion