Home Comparison Intel Core i5 8400 vs Intel Core i7 12700K

Intel Core i5 8400 vs Intel Core i7 12700K

Intel Core i5 8400
VS
Intel Core i7 12700K
Intel Core i5 8400
Intel Core i7 12700K
We compared two desktop CPUs: Intel Core i5 8400 with 6 cores 2.8GHz and Intel Core i7 12700K with 12 cores 3.6GHz . 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
Lower TDP (65W vs 125W)
Intel Core i7 12700K 's Advantages
Released 4 years late
Better graphics card performance
Higher specification of memory (4800 vs 2666)
Larger memory bandwidth (76.8GB/s vs 41.6GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (3.6GHz vs 2.8GHz)
Larger L3 cache size (25MB vs 9MB)
More modern manufacturing process (10nm vs 14nm)

Score

Benchmark

Cinebench R23 Single Core
Intel Core i5 8400
1026
Intel Core i7 12700K +89%
1944
Cinebench R23 Multi Core
Intel Core i5 8400
5798
Intel Core i7 12700K +293%
22801
Geekbench 6 Single Core
Intel Core i5 8400
1298
Intel Core i7 12700K +102%
2625
Geekbench 6 Multi Core
Intel Core i5 8400
4677
Intel Core i7 12700K +214%
14728
Blender
Intel Core i5 8400
83
Intel Core i7 12700K +338%
364
Geekbench 5 Single Core
Intel Core i5 8400
1032
Intel Core i7 12700K +101%
2084
Geekbench 5 Multi Core
Intel Core i5 8400
4611
Intel Core i7 12700K +236%
15499
Passmark CPU Single Core
Intel Core i5 8400
2387
Intel Core i7 12700K +69%
4040
Passmark CPU Multi Core
Intel Core i5 8400
9214
Intel Core i7 12700K +276%
34674
Intel Core i5 8400
VS
Intel Core i7 12700K

General Parameters

Oct 2017
Release Date
Oct 2021
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Coffee Lake
Core Architecture
Alder Lake
i5-8400
Processor Number
i7-12700K
LGA-1151
Socket
LGA-1700
UHD Graphics 630
Integrated Graphics
UHD Graphics 770

Package

14 nm
Manufacturing Process
10 nm
65 W
Power Consumption
125 W
-
Max Turbo Power Consumption
190 W
100 °C
Peak Operating Temperature
100°C

CPU Performance

6
Performance Cores
8
6
Performance Core Threads
16
2.8 GHz
Performance Core Base Frequency
3.6 GHz
4 GHz
Performance Core Turbo Frequency
4.9 GHz
-
Efficiency Cores
4
-
Efficiency Core Threads
4
-
Efficiency Core Base Frequency
2.7 GHz
-
Efficiency Core Turbo Frequency
3.8 GHz
6
Total Core Count
12
6
Total Thread Count
20
100 MHz
Bus Frequency
100 MHz
28x
Multiplier
36x
64 K per core
L1 Cache
80 K per core
256 K per core
L2 Cache
12 MB shared
9 MB shared
L3 Cache
25 MB shared
No
Unlocked Multiplier
Yes

Memory Parameters

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

Graphics Card Parameters

true
Integrated Graphics
true
350 MHz
GPU Base Frequency
300 MHz
1050 MHz
GPU Max Dynamic Frequency
1500 MHz
192
Shader Units
256
24
Texture Units
16
3
Raster Operation Units
8
24
Execution Units
32
15 W
Power Consumption
15 W
4096x2304 - 60 Hz
Max Resolution
-
0.38 TFLOPS
Graphics Performance
0.78 TFLOPS

Miscellaneous

Intel Core i5 8400
Official Website
Intel Core i7 12700K
3.0
PCIe Version
5.0
16
PCIe Lanes
20
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
-

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