Intel Core i5 6400 vs Intel Core i9 7980XE
We compared two desktop CPUs: Intel Core i5 6400 with 4 cores 2.7GHz and Intel Core i9 7980XE with 18 cores 2.6GHz . 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
Higher base frequency (2.7GHz vs 2.6GHz)
Lower TDP (65W vs 165W)
Intel Core i9 7980XE 's Advantages
Released 2 years late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (79.47GB/s vs 34.1GB/s)
Larger L3 cache size (25MB vs 6MB)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i5 6400
898
Intel Core i9 7980XE
+40%
1263
Cinebench R23 Multi Core
Intel Core i5 6400
3214
Intel Core i9 7980XE
+777%
28196
Geekbench 6 Single Core
Intel Core i5 6400
1143
Intel Core i9 7980XE
+23%
1410
Geekbench 6 Multi Core
Intel Core i5 6400
3312
Intel Core i9 7980XE
+244%
11418
Blender
Intel Core i5 6400
49
Intel Core i9 7980XE
+522%
305
Geekbench 5 Single Core
Intel Core i5 6400
853
Intel Core i9 7980XE
+30%
1117
Geekbench 5 Multi Core
Intel Core i5 6400
2805
Intel Core i9 7980XE
+425%
14735
Passmark CPU Single Core
Intel Core i5 6400
1961
Intel Core i9 7980XE
+27%
2492
Passmark CPU Multi Core
Intel Core i5 6400
5151
Intel Core i9 7980XE
+491%
30462
General Parameters
Sep 2015
Release Date
Sep 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
i5-6400
Processor Number
i9-7980XE
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
94 °C
CPU Performance
4
Performance Cores
18
4
Performance Core Threads
36
2.7 GHz
Performance Core Base Frequency
2.6 GHz
3.3 GHz
Performance Core Turbo Frequency
4.2 GHz
4
Total Core Count
18
4
Total Thread Count
36
100 MHz
Bus Frequency
100 MHz
27x
Multiplier
26x
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
