Ryzen 9 3900X: specs and benchmarks

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Aggregate performance score

Ryzen 9 3900X provides good benchmark performance at 21.11% of a leader's which is a 96-core Ryzen Threadripper PRO 7995WX.

Summary

AMD started Ryzen 9 3900X sales 7 July 2019 at a recommended price of $499. This is a Matisse (Zen 2) architecture desktop processor primarily aimed at office systems. It has 12 cores and 24 threads, and is based on 7 nm manufacturing technology, with a max turbo frequency of 4600 MHz and an unlocked multiplier.

Compatibility-wise, this is AMD Socket AM4 processor with a TDP of 125 Watt. It supports DDR4 Dual-channel memory.

Primary details

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

Place in performance ranking237
Place by popularitynot in top-100
Cost-effectiveness evaluation36.40
Market segmentDesktop processor
SeriesAMD Ryzen 9
Architecture codenameMatisse (Zen 2) (2019−2020)
Release date7 July 2019 (4 years ago)
Launch price (MSRP)$499of 305 (Core i7-870)
Current price$381 (0.8x MSRP)of 15701 (Xeon Platinum 8276L)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores12 (Dodeca-Core)
Threads24
Base clock speed3.8 GHzof 4.7 (FX-9590)
Boost clock speed4.6 GHzof 6.2 (Core i9-14900KS)
L1 cache96K (per core)of 7475.2 (Apple M2 Pro 10-Core)
L2 cache512K (per core)of 98304 (Ryzen Threadripper PRO 7995WX)
L3 cache64 MBof 768 (EPYC 7373X)
Chip lithography7 nmof 3 (Apple M3 Max 16-Core)
Maximum core temperature95 °Cof 110 (Atom x7-E3950)
Number of transistors19,200 millionof 92000 (Apple M3 Max 16-Core)
64 bit support+
Windows 11 compatibility+
Unlocked multiplierYes

Compatibility

Information on Ryzen 9 3900X compatibility with other computer components and devices: 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)of 8 (Opteron 842)
SocketAM4
Power consumption (TDP)125 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

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

AES-NI+
AVX+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

AMD-V+

Memory specs

Types, maximum amount and channel number of RAM supported by Ryzen 9 3900X's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR4 Dual-channel
Maximum memory size128 GBof 786 (Xeon E5-2670 v3)
Max memory channels2of 12 (Xeon Platinum 9221)
Maximum memory bandwidth51.196 GB/sof 460.8 (EPYC 9124)
ECC memory support-

Graphics specifications

General parameters of a GPU integrated into Ryzen 9 3900X.

Integrated graphics card-

Benchmark performance

Single-core and multi-core benchmark results of Ryzen 9 3900X. Overall benchmark performance 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 3900X 21.11

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 3900X 32647

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 3900X 1694

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 3900X 9919

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 3900X 6019

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 3900X 45539

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

Benchmark coverage: 19%

Ryzen 9 3900X 14889

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 3900X 34

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 3900X 3049

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 3900X 207

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 3900X 2.36

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 3900X 10.8

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 3900X 7534

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 3900X 147

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 3900X 268

Gaming performance

Closest competitors

Ryzen 9 3900X's performance relative to its closest rivals among desktop CPUs.


Core i5-14500 100.33
Ryzen 9 3900X 100

Intel equivalent

According to our data, the closest Intel alternative to Ryzen 9 3900X is Core i5-14500, which is nearly equal in speed and higher by 2 positions in our ranking.

Here are some closest Intel rivals to Ryzen 9 3900X:

Core i5-14500 100.33
Ryzen 9 3900X 100

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

Recommended GPUs

People consider these graphics cards to be good for Ryzen 9 3900X, according to our PC configuration statistics.

These are the fastest graphics cards for Ryzen 9 3900X in our user configuration statistics. There is a total of 2923 configurations using Ryzen 9 3900X in our database.

Community ratings

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.


4.7 5027 votes

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Questions & comments

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