Intel Core i9-9900X vs AMD Ryzen 7 3800X

Last updated:

CPU comparison with benchmarks


Intel Core i9-9900X CPU1 vs CPU2 AMD Ryzen 7 3800X
Intel Core i9-9900X AMD Ryzen 7 3800X

CPU comparison

In this CPU comparison, we compare the Intel Core i9-9900X and the AMD Ryzen 7 3800X and use benchmarks to check which processor is faster.

We compare the Intel Core i9-9900X 10 core processor released in Q4/2018 with the AMD Ryzen 7 3800X which has 8 CPU cores and was introduced in Q3/2019.
Intel Core i9 (78) Family AMD Ryzen 7 (63)
Intel Core i 9000X (8) CPU group AMD Ryzen 3000 (15)
9 Generation 3
Skylake X Refresh Architecture Matisse (Zen 2)
Desktop / Server Segment Desktop / Server
Intel Core i9-7900X Predecessor --
Intel Core i9-10900X Successor AMD Ryzen 7 5800X

CPU Cores and Base Frequency

The Intel Core i9-9900X is a 10 core processor with a clock frequency of 3.50 GHz (4.50 GHz). The processor can compute 20 threads at the same time. The AMD Ryzen 7 3800X clocks with 3.90 GHz (4.50 GHz), has 8 CPU cores and can calculate 16 threads in parallel.

Intel Core i9-9900X Characteristic AMD Ryzen 7 3800X
10 Cores 8
20 Threads 16
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? Yes
3.50 GHz Frequency 3.90 GHz
4.50 GHz Turbo Frequency (1 Core) 4.50 GHz
4.30 GHz Turbo Frequency (All Cores) 4.20 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core i9-9900X Characteristic AMD Ryzen 7 3800X
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

no iGPU GPU no iGPU
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
Technology
Max. displays
-- Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version --

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.

no iGPU GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

Up to 128 GB of memory in a maximum of 4 memory channels is supported by the Intel Core i9-9900X, while the AMD Ryzen 7 3800X supports a maximum of 128 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled.

Intel Core i9-9900X Characteristic AMD Ryzen 7 3800X
DDR4-2666 Memory DDR4-3200
128 GB Max. Memory 128 GB
4 (Quad Channel) Memory channels 2 (Dual Channel)
42.7 GB/s Max. Bandwidth 51.2 GB/s
No ECC Yes
-- L2 Cache --
19.00 MB L3 Cache 32.00 MB
3.0 PCIe version 4.0
44 PCIe lanes 20
43.3 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The Intel Core i9-9900X has a TDP of 165 W. The TDP of the AMD Ryzen 7 3800X is 105 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core i9-9900X Characteristic AMD Ryzen 7 3800X
165 W TDP (PL1 / PBP) 105 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
92 °C Tjunction max. 95 °C

Technical details

The Intel Core i9-9900X has 19.00 MB cache and is manufactured in 14 nm. The cache of AMD Ryzen 7 3800X is at 32.00 MB. The processor is manufactured in 7 nm.

Intel Core i9-9900X Characteristic AMD Ryzen 7 3800X
14 nm Technology 7 nm
Monolithic Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512 ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
LGA 2066 Socket AM4 (PGA 1331)
VT-x, VT-x EPT, VT-d Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q4/2018 Release date Q3/2019
989 $ Release price 385 $
show more data show more data


Rate these processors

Here you can rate the Intel Core i9-9900X to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the AMD Ryzen 7 3800X to help other visitors make their purchasing decisions. The average rating is 3.5 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 4 CPU benchmarks
⌀ Multi core performance in 7 CPU benchmarks

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
1174 (92%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
1271 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
10490 (100%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
9065 (86%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
1459 (84%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
1742 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
9475 (100%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
7965 (84%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
455 (89%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
509 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
4855 (98%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
4960 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
21882 (94%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
23322 (100%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
169.7 (100%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
167.6 (99%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 3.50 GHz
5640 (100%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 3.90 GHz
5544 (98%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
197 (94%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
209 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
2114 (98%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
2165 (100%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
76 (100%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
712 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.50 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.50 GHz
1325 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
12874 (100%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
182 (100%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i9-9900X Intel Core i9-9900X
10C 20T @ 4.30 GHz
0 (0%)
AMD Ryzen 7 3800X AMD Ryzen 7 3800X
8C 16T @ 4.20 GHz
517 (100%)

Devices using this processor

Intel Core i9-9900X AMD Ryzen 7 3800X
Unknown dercomputerladen PC mit Ryzen 7 3800X
Memory PC mit Ryzen 7 3800X

Popular comparisons containing this CPUs

1. AMD Ryzen 5 5600XAMD Ryzen 7 3800X AMD Ryzen 5 5600X vs AMD Ryzen 7 3800X
2. AMD Ryzen 7 3800XAMD Ryzen 7 5800X AMD Ryzen 7 3800X vs AMD Ryzen 7 5800X
3. AMD Ryzen 7 3800XAMD Ryzen 7 3700X AMD Ryzen 7 3800X vs AMD Ryzen 7 3700X
4. AMD Ryzen 7 3800XTAMD Ryzen 7 3800X AMD Ryzen 7 3800XT vs AMD Ryzen 7 3800X
5. AMD Ryzen 7 3800XIntel Core i7-10700K AMD Ryzen 7 3800X vs Intel Core i7-10700K
6. AMD Ryzen 7 3800XAMD Ryzen 9 3900X AMD Ryzen 7 3800X vs AMD Ryzen 9 3900X
7. AMD Ryzen 7 3800XIntel Core i7-9700K AMD Ryzen 7 3800X vs Intel Core i7-9700K
8. AMD Ryzen 7 3800XIntel Core i9-9900K AMD Ryzen 7 3800X vs Intel Core i9-9900K
9. AMD Ryzen 7 3800XAMD Ryzen 9 5900X AMD Ryzen 7 3800X vs AMD Ryzen 9 5900X
10. AMD Ryzen 7 3800XAMD Ryzen 7 2700X AMD Ryzen 7 3800X vs AMD Ryzen 7 2700X


back to index