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AMD Ryzen 9 3950X vs Intel Core i9-9940X

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CPU comparison with benchmarks


AMD Ryzen 9 3950X CPU1 vs CPU2 Intel Core i9-9940X
AMD Ryzen 9 3950X Intel Core i9-9940X

CPU comparison

AMD Ryzen 9 3950X or Intel Core i9-9940X - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The AMD Ryzen 9 3950X has 16 cores with 32 threads and clocks with a maximum frequency of 4.70 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 3950X was released in Q3/2019.

The Intel Core i9-9940X has 14 cores with 28 threads and clocks with a maximum frequency of 4.50 GHz. The CPU supports up to 128 GB of memory in 4 memory channels. The Intel Core i9-9940X was released in Q4/2018.
AMD Ryzen 9 (47) Family Intel Core i9 (81)
AMD Ryzen 3000 (15) CPU group Intel Core i 9000X (8)
3 Generation 9
Matisse (Zen 2) Architecture Skylake X Refresh
Desktop Segment Desktop
-- Predecessor Intel Core i9-7940X
AMD Ryzen 9 5950X Successor --

CPU Cores and Base Frequency

The AMD Ryzen 9 3950X is a 16 core processor with a clock frequency of 3.50 GHz (4.70 GHz). The Intel Core i9-9940X has 14 CPU cores with a clock frequency of 3.30 GHz (4.50 GHz).
AMD Ryzen 9 3950X Characteristic Intel Core i9-9940X
16 Cores 14
32 Threads 28
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? Yes
3.50 GHz Frequency 3.30 GHz
4.70 GHz Turbo Frequency (1 Core) 4.50 GHz
4.00 GHz Turbo Frequency (All Cores) 4.20 GHz

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.
AMD Ryzen 9 3950X Characteristic Intel Core i9-9940X
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
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

The AMD Ryzen 9 3950X supports a maximum of 128 GB of memory in 2 memory channels. The Intel Core i9-9940X can connect up to 128 GB of memory in 4 memory channels.
AMD Ryzen 9 3950X Characteristic Intel Core i9-9940X
DDR4-3200 Memory DDR4-2666
128 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 4 (Quad Channel)
51.2 GB/s Max. Bandwidth 85.4 GB/s
Yes ECC No
-- L2 Cache --
64.00 MB L3 Cache 19.00 MB
4.0 PCIe version 3.0
20 PCIe lanes 44
39.4 GB/s PCIe Bandwidth 43.3 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 9 3950X has a TDP of 105 W, that of the Intel Core i9-9940X is 165 W.
AMD Ryzen 9 3950X Characteristic Intel Core i9-9940X
105 W TDP (PL1 / PBP) 165 W
142 W TDP (PL2) --
-- TDP up --
-- TDP down --
95 °C Tjunction max. 92 °C

Technical details

The AMD Ryzen 9 3950X has a 64.00 MB cache, while the Intel Core i9-9940X cache has a total of 19.00 MB.
AMD Ryzen 9 3950X Characteristic Intel Core i9-9940X
7 nm Technology 14 nm
Chiplet Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
AM4 (PGA 1331) Socket LGA 2066
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q3/2019 Release date Q4/2018
749 $ Release price 1387 $
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 9 3950X to help other visitors make their purchasing decisions. The average rating is 4.5 stars (35 ratings). Rate now:
Here you can rate the Intel Core i9-9940X to help other visitors make their purchasing decisions. The average rating is 5.0 stars (1 ratings). Rate now:

Average performance in benchmarks

⌀ Single core performance in 4 CPU benchmarks
AMD Ryzen 9 3950X (100%)
Intel Core i9-9940X (87%)
⌀ Multi core performance in 5 CPU benchmarks
AMD Ryzen 9 3950X (100%)
Intel Core i9-9940X (78%)

Price-performance ratio

Geekbench 6 multi-core score divided by the processor's release price. Higher is better.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
Geekbench 6 MT: 11,830 / 749 $
15.79
Intel Core i9-9940X Intel Core i9-9940X
Geekbench 6 MT: 10,820 / 1387 $
7.80

Geekbench 6 (Single-Core)

Geekbench 6 is a partial load benchmark for modern computers, notebooks and smartphones. In the single-core test, only the fastest CPU core is measured. The test run simulates the performance in practice.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz
1697 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.50 GHz
1459 (86%)

Geekbench 6 (Multi-Core)

The practical Geekbench 6 multi-core benchmark tests the system's performance under partial load. The processor's maximum power consumption is far from being used up.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz
11830 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.20 GHz
10820 (91%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz
1408 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.50 GHz
1174 (83%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz
14322 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.20 GHz
13946 (97%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz
531 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.50 GHz
457 (86%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz
9148 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.20 GHz
5912 (65%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz
39079 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.20 GHz
28390 (73%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz
217 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.50 GHz
197 (91%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz
3897 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.20 GHz
2587 (66%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz
74 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.50 GHz
0 (0%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz
1325 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.50 GHz
0 (0%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz
1371 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.50 GHz
0 (0%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz
24050 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.20 GHz
0 (0%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz
384 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.20 GHz
0 (0%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz
85.4 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.20 GHz
0 (0%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz
523 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 4.50 GHz
0 (0%)

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.
AMD Ryzen 9 3950X AMD Ryzen 9 3950X
16C 32T @ 3.50 GHz
10761 (100%)
Intel Core i9-9940X Intel Core i9-9940X
14C 28T @ 3.30 GHz
0 (0%)

Devices using this processor
AMD Ryzen 9 3950X Intel Core i9-9940X
Memory PC High End Gaming PC AMD Ryzen 9 3950X
Kiebel Gamer-PC Loki [184903]
 Unknown

News and articles for the AMD Ryzen 9 3950X and the Intel Core i9-9940X

The evolution of AMD Ryzen processors
The evolution of AMD Ryzen processors
Posted by Stefan on 2022-09-06
The AMD Ryzen processors are designed for the mid to high-end range and are grouped into the Ryzen 3, Ryzen 5, Ryzen 7 and Ryzen 9 classes. AMD follows the market leader Intel, which groups its Core i series (Intel Core i3, Core i5, Core i7 and Core i9) identically.

The AMD Ryzen processors were first introduced by AMD in Q1 2017. They are the successor to the not particularly successful AMD Bulldozer processors. The latter were manufactured using an outdated manufacturing process and could not keep up with the competing products from Intel. AMD lost a large portion of its desktop processor market share during this period.

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