Home Comparison Intel Core i9 12900KS vs Intel Core i5 8400

Intel Core i9 12900KS vs Intel Core i5 8400

Intel Core i9 12900KS
VS
Intel Core i5 8400
Intel Core i9 12900KS
Intel Core i5 8400
We compared two desktop CPUs: Intel Core i9 12900KS with 16 cores 3.4GHz and Intel Core i5 8400 with 6 cores 2.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 12900KS 's Advantages
Released 4 years and 6 months 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 (3.4GHz vs 2.8GHz)
Larger L3 cache size (30MB vs 9MB)
More modern manufacturing process (10nm vs 14nm)
Intel Core i5 8400 's Advantages
Lower TDP (65W vs 150W)

Score

Benchmark

Cinebench R23 Single Core
Intel Core i9 12900KS +102%
2082
Intel Core i5 8400
1026
Cinebench R23 Multi Core
Intel Core i9 12900KS +379%
27796
Intel Core i5 8400
5798
Geekbench 6 Single Core
Intel Core i9 12900KS +97%
2559
Intel Core i5 8400
1298
Geekbench 6 Multi Core
Intel Core i9 12900KS +232%
15546
Intel Core i5 8400
4677
Blender
Intel Core i9 12900KS +393%
410
Intel Core i5 8400
83
Geekbench 5 Single Core
Intel Core i9 12900KS +97%
2041
Intel Core i5 8400
1032
Geekbench 5 Multi Core
Intel Core i9 12900KS +283%
17685
Intel Core i5 8400
4611
Passmark CPU Single Core
Intel Core i9 12900KS +82%
4357
Intel Core i5 8400
2387
Passmark CPU Multi Core
Intel Core i9 12900KS +382%
44470
Intel Core i5 8400
9214
Intel Core i9 12900KS
VS
Intel Core i5 8400

General Parameters

Apr 2022
Release Date
Oct 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Alder Lake-S
Core Architecture
Coffee Lake
i9-12900KS
Processor Number
i5-8400
LGA-1700
Socket
LGA-1151
UHD Graphics 770
Integrated Graphics
UHD Graphics 630

Package

10 nm
Manufacturing Process
14 nm
150 W
Power Consumption
65 W
100 °C
Peak Operating Temperature
100 °C

CPU Performance

8
Performance Cores
6
-
Performance Core Threads
6
3.4 GHz
Performance Core Base Frequency
2.8 GHz
5.5 GHz
Performance Core Turbo Frequency
4 GHz
8
Efficiency Cores
-
16
Total Core Count
6
24
Total Thread Count
6
100 MHz
Bus Frequency
100 MHz
34x
Multiplier
28x
64 K per core
L1 Cache
64 K per core
14 MB shared
L2 Cache
256 K per core
30 MB shared
L3 Cache
9 MB shared
Yes
Unlocked Multiplier
No

Memory Parameters

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

Graphics Card Parameters

true
Integrated Graphics
true
300 MHz
GPU Base Frequency
350 MHz
1550 MHz
GPU Max Dynamic Frequency
1050 MHz
256
Shader Units
192
16
Texture Units
24
8
Raster Operation Units
3
32
Execution Units
24
15 W
Power Consumption
15 W
-
Max Resolution
4096x2304 - 60 Hz
0.78 TFLOPS
Graphics Performance
0.38 TFLOPS

Miscellaneous

Intel Core i9 12900KS
Official Website
Intel Core i5 8400
5.0
PCIe Version
3.0
20
PCIe Lanes
16
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2

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