Home Comparison Intel Core i7 8700K vs Intel Core i5 8400

Intel Core i7 8700K vs Intel Core i5 8400

Intel Core i7 8700K
VS
Intel Core i5 8400
Intel Core i7 8700K
Intel Core i5 8400
We compared two desktop CPUs: Intel Core i7 8700K with 6 cores 3.7GHz 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 i7 8700K 's Advantages
Higher base frequency (3.7GHz vs 2.8GHz)
Larger L3 cache size (12MB vs 9MB)
Intel Core i5 8400 's Advantages
Lower TDP (65W vs 95W)

Score

Benchmark

Cinebench R23 Single Core
Intel Core i7 8700K +18%
1215
Intel Core i5 8400
1026
Cinebench R23 Multi Core
Intel Core i7 8700K +50%
8734
Intel Core i5 8400
5798
Geekbench 6 Single Core
Intel Core i7 8700K +13%
1475
Intel Core i5 8400
1298
Geekbench 6 Multi Core
Intel Core i7 8700K +35%
6339
Intel Core i5 8400
4677
Blender
Intel Core i7 8700K +87%
156
Intel Core i5 8400
83
Geekbench 5 Single Core
Intel Core i7 8700K +19%
1233
Intel Core i5 8400
1032
Geekbench 5 Multi Core
Intel Core i7 8700K +43%
6632
Intel Core i5 8400
4611
Passmark CPU Single Core
Intel Core i7 8700K +15%
2748
Intel Core i5 8400
2387
Passmark CPU Multi Core
Intel Core i7 8700K +48%
13661
Intel Core i5 8400
9214
Intel Core i7 8700K
VS
Intel Core i5 8400

General Parameters

Oct 2017
Release Date
Oct 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Coffee Lake
Core Architecture
Coffee Lake
i7-8700K
Processor Number
i5-8400
LGA-1151
Socket
LGA-1151
UHD Graphics 630
Integrated Graphics
UHD Graphics 630

Package

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

CPU Performance

6
Performance Cores
6
12
Performance Core Threads
6
3.7 GHz
Performance Core Base Frequency
2.8 GHz
4.7 GHz
Performance Core Turbo Frequency
4 GHz
6
Total Core Count
6
12
Total Thread Count
6
100 MHz
Bus Frequency
100 MHz
37x
Multiplier
28x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
256 K per core
12 MB shared
L3 Cache
9 MB shared
Yes
Unlocked Multiplier
No

Memory Parameters

DDR4-2666
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
2
Max Memory Channels
2
41.6 GB/s
Max Memory Bandwidth
41.6 GB/s
No
ECC Memory Support
No

Graphics Card Parameters

true
Integrated Graphics
true
350 MHz
GPU Base Frequency
350 MHz
1200 MHz
GPU Max Dynamic Frequency
1050 MHz
192
Shader Units
192
24
Texture Units
24
3
Raster Operation Units
3
24
Execution Units
24
15 W
Power Consumption
15 W
4096x2304 - 60 Hz
Max Resolution
4096x2304 - 60 Hz
0.38 TFLOPS
Graphics Performance
0.38 TFLOPS

Miscellaneous

Intel Core i7 8700K
Official Website
Intel Core i5 8400
3.0
PCIe Version
3.0
16
PCIe Lanes
16
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2

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