Home Comparison Intel Core i5 6400 vs Intel Core i9 9980XE

Intel Core i5 6400 vs Intel Core i9 9980XE

We compared two desktop CPUs: Intel Core i5 6400 with 4 cores 2.7GHz and Intel Core i9 9980XE with 18 cores 3.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i5 6400 's Advantages
Integrated graphics card
Lower TDP (65W vs 165W)
Intel Core i9 9980XE 's Advantages
Released 3 years and 1 months late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (79.47GB/s vs 34.1GB/s)
Higher base frequency (3.0GHz vs 2.7GHz)
Larger L3 cache size (25MB vs 6MB)

Score

Benchmark

Cinebench R23 Single Core
Intel Core i5 6400
898
Intel Core i9 9980XE +24%
1114
Cinebench R23 Multi Core
Intel Core i5 6400
3214
Intel Core i9 9980XE +742%
27093
Geekbench 6 Single Core
Intel Core i5 6400
1143
Intel Core i9 9980XE +29%
1480
Geekbench 6 Multi Core
Intel Core i5 6400
3312
Intel Core i9 9980XE +234%
11091
Blender
Intel Core i5 6400
49
Intel Core i9 9980XE +491%
290
Geekbench 5 Single Core
Intel Core i5 6400
853
Intel Core i9 9980XE +31%
1122
Geekbench 5 Multi Core
Intel Core i5 6400
2805
Intel Core i9 9980XE +511%
17154
Passmark CPU Single Core
Intel Core i5 6400
1961
Intel Core i9 9980XE +31%
2569
Passmark CPU Multi Core
Intel Core i5 6400
5151
Intel Core i9 9980XE +520%
31938

General Parameters

Sep 2015
Release Date
Oct 2018
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
i5-6400
Processor Number
i9-9980XE
LGA-1151
Socket
LGA-2066
HD Graphics 530
Integrated Graphics
N/A

Package

14 nm
Manufacturing Process
14 nm
65 W
Power Consumption
165 W
-
Peak Operating Temperature
84°C

CPU Performance

4
Performance Cores
18
4
Performance Core Threads
36
2.7 GHz
Performance Core Base Frequency
3.0 GHz
3.3 GHz
Performance Core Turbo Frequency
4.4 GHz
4
Total Core Count
18
4
Total Thread Count
36
100 MHz
Bus Frequency
100 MHz
27x
Multiplier
30x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
1 MB per core
6 MB shared
L3 Cache
25 MB shared
No
Unlocked Multiplier
Yes

Memory Parameters

DDR4-2133, DDR3L-1600
Memory Types
DDR4-2666
64 GB
Max Memory Size
128 GB
2
Max Memory Channels
4
34.1 GB/s
Max Memory Bandwidth
79.47 GB/s
No
ECC Memory Support
No

Graphics Card Parameters

true
Integrated Graphics
-
950 MHz
GPU Max Dynamic Frequency
-

Miscellaneous

3.0
PCIe Version
3.0
16
PCIe Lanes
44
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
© 2025 - TopCPU.net