Intel Core i9 9900X vs Intel Core i5 6600K
We compared two desktop CPUs: Intel Core i9 9900X with 10 cores 3.5GHz and Intel Core i5 6600K with 4 cores 3.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i9 9900X Advantages
Released 3 years and 2 months late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (85GB/s vs 34.1GB/s)
Larger L3 cache size (20MB vs 6MB)
Intel Core i5 6600K Advantages
Integrated graphics card
Lower TDP (91W vs 165W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i9 9900X
+13%
1182
Intel Core i5 6600K
1040
Cinebench R23 Multi Core
Intel Core i9 9900X
+253%
13994
Intel Core i5 6600K
3963
Geekbench 6 Single Core
Intel Core i9 9900X
1455
Intel Core i5 6600K
+2%
1486
Geekbench 6 Multi Core
Intel Core i9 9900X
+133%
10273
Intel Core i5 6600K
4406
Geekbench 5 Single Core
Intel Core i9 9900X
+3%
1165
Intel Core i5 6600K
1125
Geekbench 5 Multi Core
Intel Core i9 9900X
+183%
10704
Intel Core i5 6600K
3775
Passmark CPU Single Core
Intel Core i9 9900X
+10%
2565
Intel Core i5 6600K
2327
Passmark CPU Multi Core
Intel Core i9 9900X
+244%
21833
Intel Core i5 6600K
6329
General Parameters
Oct 2018
Release Date
Aug 2015
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
i9-9900X
Processor Number
i5-6600K
LGA-2066
Socket
LGA-1151
N/A
Integrated Graphics
HD Graphics 530
Package
14 nm
Manufacturing Process
14 nm
165 W
Power Consumption
91 W
92 °C
Peak Operating Temperature
-
CPU Performance
10
Performance Cores
4
20
Performance Core Threads
4
3.5 GHz
Performance Core Base Frequency
3.5 GHz
4.4 GHz
Performance Core Turbo Frequency
3.9 GHz
10
Total Core Count
4
20
Total Thread Count
4
100 MHz
Bus Frequency
100 MHz
35x
Multiplier
35
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
256 K per core
20 MB shared
L3 Cache
6 MB shared
Yes
Unlocked Multiplier
No
Memory Parameters
DDR4-2666
Memory Types
DDR4-2133, DDR3L-1600
128 GB
Max Memory Size
64 GB
4
Max Memory Channels
2
85 GB/s
Max Memory Bandwidth
34.1 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
-
Integrated Graphics
true
-
GPU Max Dynamic Frequency
1150 MHz
Miscellaneous
3.0
PCIe Version
3.0
44
PCIe Lanes
16
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
