Ryzen 9 3900XT vs Ryzen 9 3900X

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Aggregate performance score

Ryzen 9 3900X
2019
12 cores / 24 threads, 105 Watt
21.32
Ryzen 9 3900XT
2020
12 cores / 24 threads, 105 Watt
21.35
+0.1%

Primary details

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

Place in the ranking266264
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation21.8126.30
Market segmentDesktop processorDesktop processor
SeriesAMD Ryzen 9AMD Ryzen 9
Power efficiency18.5118.54
Architecture codenameMatisse (Zen 2) (2019−2020)Matisse 2 (2020)
Release date7 July 2019 (5 years ago)16 June 2020 (4 years ago)
Launch price (MSRP)$499$499

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 3900XT has 21% better value for money than Ryzen 9 3900X.

Detailed specifications

Ryzen 9 3900X and Ryzen 9 3900XT 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 cores12 (Dodeca-Core)12 (Dodeca-Core)
Threads2424
Base clock speed3.8 GHz3.8 GHz
Boost clock speed4.6 GHz4.7 GHz
L1 cache768 KB768 KB
L2 cache6 MB6 MB
L3 cache64 MB64 MB
Chip lithography7 nm, 12 nm7 nm, 12 nm
Die sizeno data74 mm2
Maximum core temperature95 °Cno data
Maximum case temperature (TCase)no data95 °C
Number of transistors19,200 million3,800 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on Ryzen 9 3900X and Ryzen 9 3900XT 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)1
SocketAM4AM4
Power consumption (TDP)105 Watt105 Watt

Technologies and extensions

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

AES-NI++
AVX++
Precision Boost 2++

Virtualization technologies

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

AMD-V++

Memory specs

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

Supported memory typesDDR4 Dual-channelDDR4-3200
Maximum memory size128 GB128 GB
Max memory channels22
Maximum memory bandwidth51.196 GB/s51.196 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card--

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900X and Ryzen 9 3900XT.

PCIe versionno data4.0

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 3900X 21.32
Ryzen 9 3900XT 21.35
+0.1%

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.

Ryzen 9 3900X 32621
Ryzen 9 3900XT 32670
+0.2%

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.

Ryzen 9 3900X 1709
Ryzen 9 3900XT 1741
+1.9%

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.

Ryzen 9 3900X 9943
+0.2%
Ryzen 9 3900XT 9928

Gaming performance

Pros & cons summary


Performance score 21.32 21.35
Recency 7 July 2019 16 June 2020

Ryzen 9 3900XT has a 0.1% higher aggregate performance score, and an age advantage of 11 months.

Given the minimal performance differences, no clear winner can be declared between Ryzen 9 3900X and Ryzen 9 3900XT.


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

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AMD Ryzen 9 3900X
Ryzen 9 3900X
AMD Ryzen 9 3900XT
Ryzen 9 3900XT

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Community ratings

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


4.7 5120 votes

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Questions & comments

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