Intel Core i9 9900X vs Intel Core i5 8600K
CPU · Specs Compare
General Parameters
Release Date
Oct 2018
Oct 2017
Manufacturer
Intel
Intel
Type
Desktop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Skylake
Coffee Lake
Processor Number
i9-9900X
i5-8600K
Integrated Graphics
N/A
UHD Graphics 630
Package
Manufacturing Process
14 nm
14 nm
Socket
LGA-2066
LGA-1151
Power Consumption
165 W
95 W
Peak Operating Temperature
92 °C
100 °C
CPU Performance
Performance Cores
10
6
Performance Core Threads
20
6
Performance Core Base Frequency
3.5 GHz
3.6 GHz
Performance Core Turbo Frequency
4.4 GHz
4.3 GHz
Total Core Count
10
6
Total Thread Count
20
6
Bus Frequency
100 MHz
100 MHz
Multiplier
35x
36x
L1 Cache
64 K per core
64 K per core
L2 Cache
1 MB per core
256 K per core
L3 Cache
20 MB shared
9 MB shared
Unlocked Multiplier
Yes
Yes
Memory Parameters
Memory Types
DDR4-2666
DDR4-2666
Max Memory Size
128 GB
128 GB
Max Memory Channels
4
2
Max Memory Bandwidth
85 GB/s
41.6 GB/s
ECC Memory Support
No
No
Miscellaneous
PCIe Version
3.0
3.0
PCIe Lanes
44
16
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
SSE4.1, SSE4.2, AVX-2
Graphics Card Parameters
Integrated Graphics
—
true
GPU Base Frequency
—
350 MHz
GPU Max Dynamic Frequency
—
1150 MHz
Shader Units
—
192
Texture Units
—
24
Raster Operation Units
—
3
Execution Units
—
24
Power Consumption
—
15 W
Max Resolution
—
4096x2304 - 60 Hz
Benchmark
Cinebench R23
1,182
1,201
Cinebench R23
13,994
6,612
Geekbench 6
1,455
1,649
Geekbench 5
1,165
1,163
Geekbench 6
10,273
6,050
Geekbench 5
10,704
5,367
Passmark CPU
2,565
2,603
Passmark CPU
21,833
10,201
▲ Specs Compare
Data sourced from official specifications and benchmark tests.