Ryzen 9 3900 vs Ryzen 9 3950X

#ad
Buy on Amazon
VS

Aggregated performance score

Ryzen 9 3950X
2019
16 cores / 32 threads
25.10
+25.9%
Ryzen 9 3900
2019
12 cores / 24 threads
19.94

Ryzen 9 3950X outperforms Ryzen 9 3900 by 26% based on our aggregated benchmark results.

General info

Comparing Ryzen 9 3950X and Ryzen 9 3900 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking170245
Place by popularitynot in top-100not in top-100
Value for money15.1136.66
Market segmentDesktop processorDesktop processor
SeriesAMD Ryzen 9AMD Matisse (Ryzen 3000 Desktop)
Architecture codenameMatisse (Zen 2) (2019−2020)Matisse (Zen 2) (2019−2020)
Release date14 November 2019 (4 years ago)9 October 2019 (4 years ago)
Launch price (MSRP)$799no data
Current price$1336 (1.7x MSRP)$388

Value for money

Performance per price, higher is better.

Ryzen 9 3900 has 143% better value for money than Ryzen 9 3950X.

Technical specs

Ryzen 9 3950X and Ryzen 9 3900 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores16 (Hexadeca-Core)12 (Dodeca-Core)
Threads3224
Base clock speed3.5 GHz3.1 GHz
Boost clock speed4.7 GHz4.3 GHz
L1 cache96K (per core)768 KB
L2 cache512K (per core)6 MB
L3 cache64 MB64 MB
Chip lithography7 nm7 nm
Die size2 x 72 mm + 125 mm (IO-Die) mm2no data
Number of transistors19,200 millionno data
64 bit support++
Windows 11 compatibility+-
Unlocked multiplierYesYes

Compatibility

Information on Ryzen 9 3950X and Ryzen 9 3900 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1 (Uniprocessor)no data
SocketAM4AM4 (1331)
Power consumption (TDP)105 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3950X and Ryzen 9 3900. You'll probably need this information if you require some particular technology.

Instruction set extensions86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 286x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2
AES-NI++
AVX++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 3950X and Ryzen 9 3900 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3950X and Ryzen 9 3900. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4 Dual-channelDDR4-3200
Maximum memory size128 GB128 GB
Max memory channelsno data2
Maximum memory bandwidth51.196 GB/s51.196 GB/s
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card--

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Ryzen 9 3950X 25.10
+25.9%
Ryzen 9 3900 19.94

Ryzen 9 3950X outperforms Ryzen 9 3900 by 26% based on our aggregated benchmark results.


Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Benchmark coverage: 68%

Ryzen 9 3950X 38806
+25.8%
Ryzen 9 3900 30836

Ryzen 9 3950X outperforms Ryzen 9 3900 by 26% in Passmark.

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 42%

Ryzen 9 3950X 1719
+4.2%
Ryzen 9 3900 1650

Ryzen 9 3950X outperforms Ryzen 9 3900 by 4% in GeekBench 5 Single-Core.

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 42%

Ryzen 9 3950X 10857
+14%
Ryzen 9 3900 9520

Ryzen 9 3950X outperforms Ryzen 9 3900 by 14% in GeekBench 5 Multi-Core.

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

Benchmark coverage: 20%

Ryzen 9 3950X 6102
+7.1%
Ryzen 9 3900 5700

Ryzen 9 3950X outperforms Ryzen 9 3900 by 7% in Cinebench 10 32-bit single-core.

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Benchmark coverage: 19%

Ryzen 9 3950X 53396
+20.8%
Ryzen 9 3900 44191

Ryzen 9 3950X outperforms Ryzen 9 3900 by 21% in Cinebench 10 32-bit multi-core.

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

Benchmark coverage: 17%

Ryzen 9 3950X 44
+41.1%
Ryzen 9 3900 31

Ryzen 9 3950X outperforms Ryzen 9 3900 by 41% in Cinebench 11.5 64-bit multi-core.

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

Benchmark coverage: 15%

Ryzen 9 3950X 4002
+42.7%
Ryzen 9 3900 2804

Ryzen 9 3950X outperforms Ryzen 9 3900 by 43% in Cinebench 15 64-bit multi-core.

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

Benchmark coverage: 15%

Ryzen 9 3950X 209
+6.1%
Ryzen 9 3900 197

Ryzen 9 3950X outperforms Ryzen 9 3900 by 6% in Cinebench 15 64-bit single-core.

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

Benchmark coverage: 14%

Ryzen 9 3950X 2.37
+6.8%
Ryzen 9 3900 2.22

Ryzen 9 3950X outperforms Ryzen 9 3900 by 7% in Cinebench 11.5 64-bit single-core.

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

Benchmark coverage: 13%

Ryzen 9 3950X 10.8
+3.8%
Ryzen 9 3900 10.4

Ryzen 9 3950X outperforms Ryzen 9 3900 by 4% in TrueCrypt AES.

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

Benchmark coverage: 13%

Ryzen 9 3950X 7409
+3.7%
Ryzen 9 3900 7145

Ryzen 9 3950X outperforms Ryzen 9 3900 by 4% in WinRAR 4.0.

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

Benchmark coverage: 13%

Ryzen 9 3950X 265
+3.7%
Ryzen 9 3900 256

Ryzen 9 3950X outperforms Ryzen 9 3900 by 4% in x264 encoding pass 1.

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

Benchmark coverage: 13%

Ryzen 9 3950X 168
+27.4%
Ryzen 9 3900 132

Ryzen 9 3950X outperforms Ryzen 9 3900 by 27% in x264 encoding pass 2.

Gaming performance

Advantages and disadvantages


Performance score 25.10 19.94
Recency 14 November 2019 9 October 2019
Physical cores 16 12
Threads 32 24
Power consumption (TDP) 105 Watt 65 Watt

The Ryzen 9 3950X is our recommended choice as it beats the Ryzen 9 3900 in performance tests.


Should you still have questions on choice between Ryzen 9 3950X and Ryzen 9 3900, ask them in Comments section, and we shall answer.

Vote

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


AMD Ryzen 9 3950X
Ryzen 9 3950X
AMD Ryzen 9 3900
Ryzen 9 3900

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

User Ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.5 685 votes

Rate Ryzen 9 3950X on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.6 558 votes

Rate Ryzen 9 3900 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions and comments

Here you can ask a question about Ryzen 9 3950X or Ryzen 9 3900, agree or disagree with our judgements, or report an error or mismatch.