AMD Ryzen 9 3900X vs Intel Core i9-9900KS

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD Ryzen 9 3900X or AMD Ryzen 9 3900X – 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 AMD Ryzen 9 3900X features 12 processor cores and has the capability to manage 24 threads concurrently.
It was released in Q3/2019 and belongs to the 3 generation of the AMD Ryzen 9 series.
To use the AMD Ryzen 9 3900X, you'll need a motherboard with a AM4 (PGA 1331) socket.
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.
AMD Ryzen 3000 Group Intel Core i 9000
3 Generation 9
Desktop / Server Segment Desktop / Server
AMD Ryzen 9 3900X Name Intel Core i9-9900KS
AMD Ryzen 9 Family Intel Core i9
 
 

CPU Cores and Base Frequency

The AMD Ryzen 9 3900X has 12 CPU cores and can calculate 24 threads in parallel.
The clock frequency of the AMD Ryzen 9 3900X is 3.8 GHz
and turbo frequency for one core is 4.6 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
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.
24 Threads 16
12x Cores 8x
12 CPU Cores 8
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking Yes
4.6 GHz Turbo Frequency (1 core) 5.0 GHz
3.8 GHz Frequency 4.0 GHz
None None 4.8 GHz
 
 

Internal Graphics

The AMD Ryzen 9 3900X does not have integrated 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.
-- Shaders 192
-- Release date Q4/2017
-- Technology 14 nm
-- Direct X 12
0 bytes Max. GPU Memory 64.0 GB
-- Max. displays --
-- Execution units 24
-- GPU frequency 0.35 GHz
-- Generation 9.5
-- GPU (Turbo) 1.2 GHz
GPU name Intel UHD Graphics 630
 
 

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.
-- VP8 Decode / Encode
-- VC-1 Decode
-- JPEG Decode / Encode
-- AV1 No
-- h265 / HEVC (8 bit) Decode / Encode
-- AVC Decode / Encode
-- h264 Decode / Encode
-- VP9 Decode / Encode
-- h265 / HEVC (10 bit) Decode / Encode
 
 

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 51.2 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 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.
pci PCIe pci
Yes AES-NI Yes
DDR4-3200 Memory type DDR4-2666
Yes ECC No
128.0 GB Max. Memory 128.0 GB
2 Memory channels 2
51.2 GB/s Bandwidth 42.7 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 105 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 127 W watts.
142 W TDP (PL2) None
105 W TDP (PL1 / PBP) 127 W
95 °C Tjunction max 100 °C
 
 

Technical details

The AMD Ryzen 9 3900X is manufactured using a 7 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 64.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i9-9900KS is manufactured using a 14 nm process.
In total, this processor boasts a generous 16.0 MB cache.
Q3/2019 Release date Q4/2019
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
SSE4a, SSE4.1, SSE4.2, FMA3, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
7 nm Technology 14 nm
Chiplet Chip design Monolithic
485 $ Release price 524 $
Matisse (Zen 2) Architecture Coffee Lake S Refresh
64.0 MB L3-Cache 16.0 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 --
AM4 (PGA 1331) Socket LGA 1151-2
6.0 MB L2-Cache 0 bytes
 
 

Benchmarks

Estimated results for PassMark CPU Mark

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
32755
32755
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
19602
19602

Cinebench R23 (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
18165
18165
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
13305
13305

V-Ray CPU-Render Benchmark

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
13271
13271
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
11511
11511

Geekbench 5, 64bit (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
12454
12454
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
9471
9471

Geekbench 6 (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
10689
10689
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
8514
8514

CPU-Z Benchmark 17 (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
8183
8183
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
6012
6012

Cinebench R20 (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
6954
6954
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
5226
5226

Cinebench R15 (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
3168
3168
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
2201
2201

Geekbench 6 (Single-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
1714
1714
Intel Core i9-9900KS
8C 16T @ 4.0 GHz
1650
1650

Geekbench 5, 64bit (Single-Core)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
1419
1419
AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
1300
1300

Cinebench R23 (Single-Core)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
1333
1333
AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
1302
1302

Cinebench R20 (Single-Core)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
518
518
AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
502
502

Cinebench R15 (Single-Core)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
222
222
AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
214
214

Blender 2.81 (bmw27)

Intel Core i9-9900KS
8C 16T @ 4.0 GHz
148
148
AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
115.9
115.9

AMD Ryzen 9 3900X and Intel Core i9-9900KS in leaderboards