AMD Ryzen 7 5700X vs AMD Ryzen 9 3900X

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CPU comparison with benchmarks


AMD Ryzen 7 5700X CPU1 vs CPU2 AMD Ryzen 9 3900X
AMD Ryzen 7 5700X AMD Ryzen 9 3900X

CPU comparison

AMD Ryzen 7 5700X or AMD Ryzen 9 3900X - 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 7 5700X has 8 cores with 16 threads and clocks with a maximum frequency of 4.60 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 7 5700X was released in Q2/2022.

The AMD Ryzen 9 3900X has 12 cores with 24 threads and clocks with a maximum frequency of 4.60 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 9 3900X was released in Q3/2019.
AMD Ryzen 7 (63) Family AMD Ryzen 9 (34)
AMD Ryzen 5000 (12) CPU group AMD Ryzen 3000 (15)
4 Generation 3
Vermeer (Zen 3) Architecture Matisse (Zen 2)
Desktop / Server Segment Desktop / Server
AMD Ryzen 7 3700X Predecessor --
AMD Ryzen 7 7700X Successor AMD Ryzen 9 5900X

CPU Cores and Base Frequency

The AMD Ryzen 7 5700X is a 8 core processor with a clock frequency of 3.40 GHz (4.60 GHz). The AMD Ryzen 9 3900X has 12 CPU cores with a clock frequency of 3.80 GHz (4.60 GHz).

AMD Ryzen 7 5700X Characteristic AMD Ryzen 9 3900X
8 Cores 12
16 Threads 24
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? Yes
3.40 GHz Frequency 3.80 GHz
4.60 GHz Turbo Frequency (1 Core) 4.60 GHz
4.20 GHz Turbo Frequency (All Cores) 4.00 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.

AMD Ryzen 7 5700X Characteristic AMD Ryzen 9 3900X
-- AI hardware --
-- AI specifications --

Internal Graphics

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 7 5700X supports a maximum of 128 GB of memory in 2 memory channels. The AMD Ryzen 9 3900X can connect up to 128 GB of memory in 2 memory channels.

AMD Ryzen 7 5700X Characteristic AMD Ryzen 9 3900X
DDR4-3200 Memory DDR4-3200
128 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
51.2 GB/s Max. Bandwidth 51.2 GB/s
Yes ECC Yes
4.00 MB L2 Cache 6.00 MB
32.00 MB L3 Cache 64.00 MB
4.0 PCIe version 4.0
20 PCIe lanes 20
39.4 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 7 5700X has a TDP of 65 W, that of the AMD Ryzen 9 3900X is 105 W.

AMD Ryzen 7 5700X Characteristic AMD Ryzen 9 3900X
65 W TDP (PL1 / PBP) 105 W
-- TDP (PL2) 142 W
-- TDP up --
-- TDP down --
90 °C Tjunction max. 95 °C

Technical details

The AMD Ryzen 7 5700X has a 36.00 MB cache, while the AMD Ryzen 9 3900X cache has a total of 70.00 MB.

AMD Ryzen 7 5700X Characteristic AMD Ryzen 9 3900X
7 nm Technology 7 nm
Chiplet Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
AM4 (PGA 1331) Socket AM4 (PGA 1331)
AMD-V, SVM Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q2/2022 Release date Q3/2019
299 $ Release price 485 $
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 7 5700X to help other visitors make their purchasing decisions. The average rating is 4.2 stars (29 ratings). Rate now:
Here you can rate the AMD Ryzen 9 3900X to help other visitors make their purchasing decisions. The average rating is 4.0 stars (8 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 6 CPU benchmarks
⌀ Multi core performance in 7 CPU benchmarks

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 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.60 GHz
93 (100%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.60 GHz
78 (84%)

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 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.60 GHz
852 (80%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.60 GHz
1068 (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.
AMD Ryzen 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.60 GHz
1532 (100%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.60 GHz
1302 (85%)

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 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.20 GHz
14230 (78%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz
18165 (100%)

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 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.60 GHz
1717 (100%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.60 GHz
1300 (76%)

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 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.20 GHz
11380 (91%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz
12454 (100%)

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.
AMD Ryzen 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.60 GHz
2114 (100%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.60 GHz
1714 (81%)

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.
AMD Ryzen 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.20 GHz
10745 (100%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz
10689 (99%)

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 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.60 GHz
588 (100%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.60 GHz
502 (85%)

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 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.20 GHz
5330 (77%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz
6954 (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.
AMD Ryzen 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.20 GHz
26815 (82%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz
32755 (100%)

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 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.60 GHz
253 (100%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.60 GHz
214 (85%)

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 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.20 GHz
2307 (73%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz
3168 (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.
AMD Ryzen 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.20 GHz
0 (0%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz
281 (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.
AMD Ryzen 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.20 GHz
0 (0%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz
115.9 (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.
AMD Ryzen 7 5700X AMD Ryzen 7 5700X
8C 16T @ 4.20 GHz
0 (0%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 4.00 GHz
536 (100%)

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 7 5700X AMD Ryzen 7 5700X
8C 16T @ 3.40 GHz
0 (0%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
12C 24T @ 3.80 GHz
8183 (100%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
AMD Ryzen 7 5700X AMD Ryzen 7 5700X
14,230 CB R23 MC @ 92 W
155 (100%)
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
3.80 GHz
0 (0%)

Devices using this processor

AMD Ryzen 7 5700X AMD Ryzen 9 3900X
Unknown Unknown

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