Ryzen 9 7900X3D vs Ryzen 9 3900XT

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Aggregate performance score

Ryzen 9 3900XT
2020
12 cores / 24 threads, 105 Watt
20.56
Ryzen 9 7900X3D
2023
12 cores / 24 threads, 120 Watt
31.73
+54.3%

Ryzen 9 7900X3D outperforms Ryzen 9 3900XT by an impressive 54% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 3900XT and Ryzen 9 7900X3D processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking274130
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation26.0449.24
Market segmentDesktop processorDesktop processor
SeriesAMD Ryzen 9AMD Ryzen 9
Power efficiency18.5225.01
Architecture codenameMatisse 2 (2020)Raphael (2023−2024)
Release date7 July 2020 (4 years ago)4 January 2023 (1 year ago)
Launch price (MSRP)$499$599

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 7900X3D has 89% better value for money than Ryzen 9 3900XT.

Detailed specifications

Ryzen 9 3900XT and Ryzen 9 7900X3D 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 GHz4.4 GHz
Boost clock speed4.7 GHz5.6 GHz
L1 cache96K (per core)64K (per core)
L2 cache512K (per core)1 MB (per core)
L3 cache64 MB128 MB (shared)
Chip lithography7 nm, 12 nm5 nm, 6 nm
Die size74 mm22x 71 mm2
Maximum case temperature (TCase)95 °C47 °C
Number of transistors3,800 million13,140 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on Ryzen 9 3900XT and Ryzen 9 7900X3D 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 configuration11
SocketAM4AM5
Power consumption (TDP)105 Watt120 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900XT and Ryzen 9 7900X3D. 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 3900XT and Ryzen 9 7900X3D are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900XT and Ryzen 9 7900X3D. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5-5200
Maximum memory size128 GB128 GB
Max memory channels2no data
Maximum memory bandwidth51.196 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card-AMD Radeon Graphics

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900XT and Ryzen 9 7900X3D.

PCIe version4.05.0
PCI Express lanesno data24

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 3900XT 20.56
Ryzen 9 7900X3D 31.73
+54.3%

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 3900XT 32659
Ryzen 9 7900X3D 50409
+54.3%

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 3900XT 1741
Ryzen 9 7900X3D 2858
+64.2%

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 3900XT 9908
Ryzen 9 7900X3D 17584
+77.5%

Gaming performance

Pros & cons summary


Performance score 20.56 31.73
Recency 7 July 2020 4 January 2023
Chip lithography 7 nm 5 nm
Power consumption (TDP) 105 Watt 120 Watt

Ryzen 9 3900XT has 14.3% lower power consumption.

Ryzen 9 7900X3D, on the other hand, has a 54.3% higher aggregate performance score, an age advantage of 2 years, and a 40% more advanced lithography process.

The Ryzen 9 7900X3D is our recommended choice as it beats the Ryzen 9 3900XT in performance tests.


Should you still have questions on choice between Ryzen 9 3900XT and Ryzen 9 7900X3D, ask them in Comments section, and we shall answer.

Vote for your favorite

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


AMD Ryzen 9 3900XT
Ryzen 9 3900XT
AMD Ryzen 9 7900X3D
Ryzen 9 7900X3D

Similar processor comparisons

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Community ratings

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


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Questions & comments

Here you can ask a question about Ryzen 9 3900XT or Ryzen 9 7900X3D, agree or disagree with our judgements, or report an error or mismatch.