Home Comparison Intel Core i7 6900K vs Intel Core i5 8400

Intel Core i7 6900K vs Intel Core i5 8400

Intel Core i7 6900K
VS
Intel Core i5 8400
Intel Core i7 6900K
Intel Core i5 8400
We compared two desktop CPUs: Intel Core i7 6900K with 8 cores 3.2GHz 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 6900K 's Advantages
Larger memory bandwidth (76.8GB/s vs 41.6GB/s)
Higher base frequency (3.2GHz vs 2.8GHz)
Larger L3 cache size (20MB vs 9MB)
Intel Core i5 8400 's Advantages
Released 1 years and 5 months late
Integrated graphics card
Higher specification of memory (2666 vs 2133)
Lower TDP (65W vs 140W)

Score

Benchmark

Cinebench R23 Single Core
Intel Core i7 6900K +12%
1151
Intel Core i5 8400
1026
Cinebench R23 Multi Core
Intel Core i7 6900K +95%
11326
Intel Core i5 8400
5798
Geekbench 6 Single Core
Intel Core i7 6900K
1286
Intel Core i5 8400
1298
Geekbench 6 Multi Core
Intel Core i7 6900K +59%
7470
Intel Core i5 8400
4677
Blender
Intel Core i7 6900K +131%
192
Intel Core i5 8400
83
Geekbench 5 Single Core
Intel Core i7 6900K
961
Intel Core i5 8400 +7%
1032
Geekbench 5 Multi Core
Intel Core i7 6900K +58%
7327
Intel Core i5 8400
4611
Passmark CPU Single Core
Intel Core i7 6900K
2310
Intel Core i5 8400 +3%
2387
Passmark CPU Multi Core
Intel Core i7 6900K +54%
14258
Intel Core i5 8400
9214
Intel Core i7 6900K
VS
Intel Core i5 8400

General Parameters

May 2016
Release Date
Oct 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Broadwell E
Core Architecture
Coffee Lake
i7-6900K
Processor Number
i5-8400
LGA-2011-3
Socket
LGA-1151
N/A
Integrated Graphics
UHD Graphics 630

Package

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

CPU Performance

8
Performance Cores
6
16
Performance Core Threads
6
3.2 GHz
Performance Core Base Frequency
2.8 GHz
3.7 GHz
Performance Core Turbo Frequency
4 GHz
8
Total Core Count
6
16
Total Thread Count
6
100 MHz
Bus Frequency
100 MHz
32x
Multiplier
28x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
256 K per core
20 MB shared
L3 Cache
9 MB shared
No
Unlocked Multiplier
No

Memory Parameters

DDR4-2133
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
2
76.8 GB/s
Max Memory Bandwidth
41.6 GB/s
No
ECC Memory Support
No

Graphics Card Parameters

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

Miscellaneous

Intel Core i7 6900K
Official Website
Intel Core i5 8400
3.0
PCIe Version
3.0
40
PCIe Lanes
16
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2

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