Intel Core i9-9900KS vs Intel Core i9-9900X

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i9-9900KS or Intel Core i9-9900KS – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i9-9900KS features 8 processor cores and has the capability to manage 16 threads concurrently.
It was released in Q4/2019 and belongs to the 9 generation of the Intel Core i9 series.
To use the Intel Core i9-9900KS, you'll need a motherboard with a LGA 1151-2 socket.
The Intel Core i9-9900X features 10 processor cores and has the capability to manage 20 threads concurrently.
It was released in Q4/2018 and belongs to the 9 generation of the Intel Core i9 series.
To use the Intel Core i9-9900X, you'll need a motherboard with a LGA 2066 socket.
Intel Core i 9000 Group Intel Core i 9000X
9 Generation 9
Desktop / Server Segment Desktop / Server
Intel Core i9-9900KS Name Intel Core i9-9900X
Intel Core i9 Family Intel Core i9
 
 

CPU Cores and Base Frequency

The Intel Core i9-9900KS has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the Intel Core i9-9900KS is 4.0 GHz
and turbo frequency for one core is 5.0 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i9-9900X has 10 CPU cores and can calculate 20 threads in parallel.
The clock frequency of the Intel Core i9-9900X is 3.5 GHz
and turbo frequency for one core is 4.5 GHz.
16 Threads 20
8x Cores 10x
8 CPU Cores 10
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking Yes
5.0 GHz Turbo Frequency (1 core) 4.5 GHz
4.0 GHz Frequency 3.5 GHz
4.8 GHz Turbo Frequency (all cores) None
 
 

Internal Graphics

The Intel Core i9-9900KS has integrated graphics, called iGPU for short.
Specifically, the Intel Core i9-9900KS uses the Intel UHD Graphics 630, which has 192 texture shaders
and 24 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i9-9900X does not have integrated graphics.
192 Shaders --
Q4/2017 Release date --
14 nm Technology --
12 Direct X --
64.0 GB Max. GPU Memory 0 bytes
-- Max. displays --
24 Execution units --
0.35 GHz GPU frequency --
9.5 Generation --
1.2 GHz GPU (Turbo) --
Intel UHD Graphics 630 GPU name
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Decode / Encode VP8 --
Decode VC-1 --
Decode / Encode JPEG --
No AV1 --
Decode / Encode h265 / HEVC (8 bit) --
Decode / Encode AVC --
Decode / Encode h264 --
Decode / Encode VP9 --
Decode / Encode h265 / HEVC (10 bit) --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 42.7 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 128.0 GB distributed across 4 memory channels. It offers a peak memory bandwidth of 42.7 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
pci PCIe pci
Yes AES-NI Yes
DDR4-2666 Memory type DDR4-2666
No ECC No
128.0 GB Max. Memory 128.0 GB
2 Memory channels 4
42.7 GB/s Bandwidth 42.7 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 127 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 165 W watts.
127 W TDP (PL1 / PBP) 165 W
100 °C Tjunction max 92 °C
 
 

Technical details

The Intel Core i9-9900KS is manufactured using a 14 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 16.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i9-9900X is manufactured using a 14 nm process.
In total, this processor boasts a generous 19.0 MB cache.
Q4/2019 Release date Q4/2018
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
14 nm Technology 14 nm
Monolithic Chip design Monolithic
524 $ Release price 989 $
Coffee Lake S Refresh Architecture Skylake X Refresh
16.0 MB L3-Cache 19.0 MB
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux, Windows 11
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
LGA 1151-2 Socket LGA 2066
0 bytes L2-Cache 0 bytes
 
 

Benchmarks

Estimated results for PassMark CPU Mark

Intel Core i9-9900X
10C 20T @ 3.5 GHz
21882
21882
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
19602
19602

Geekbench 5, 64bit (Multi-Core)

Intel Core i9-9900X
10C 20T @ 3.5 GHz
10490
10490
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
9471
9471

Geekbench 6 (Multi-Core)

Intel Core i9-9900X
10C 20T @ 3.5 GHz
9475
9475
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
8514
8514

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
6012
6012
Intel Core i9-9900X
10C 20T @ 3.5 GHz
5640
5640

Cinebench R20 (Multi-Core)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
5226
5226
Intel Core i9-9900X
10C 20T @ 3.5 GHz
4855
4855

Cinebench R15 (Multi-Core)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
2201
2201
Intel Core i9-9900X
10C 20T @ 3.5 GHz
2114
2114

Geekbench 6 (Single-Core)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
1650
1650
Intel Core i9-9900X
10C 20T @ 3.5 GHz
1459
1459

Geekbench 5, 64bit (Single-Core)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
1419
1419
Intel Core i9-9900X
10C 20T @ 3.5 GHz
1174
1174

Cinebench R20 (Single-Core)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
518
518
Intel Core i9-9900X
10C 20T @ 3.5 GHz
455
455

Blender 2.81 (bmw27)

Intel Core i9-9900X
10C 20T @ 3.5 GHz
169.7
169.7
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
148
148