AMD

AMD Ryzen 9 3900XT

AMD processor specifications and benchmark scores

12
Cores
24
Threads
4.7
GHz Boost
105W
TDP
πŸ”“Unlocked

AMD Ryzen 9 3900XT Specifications

βš™οΈ

Ryzen 9 3900XT Core Configuration

Processing cores and threading

The AMD Ryzen 9 3900XT features 12 physical cores and 24 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
12
Threads
24
SMP CPUs
1
⏱️

9 3900XT Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Ryzen 9 3900XT benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Ryzen 9 3900XT by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.9 GHz
Boost Clock
4.7 GHz
Multiplier
39x πŸ”“
πŸ’Ύ

AMD's Ryzen 9 3900XT Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the 9 3900XT processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Ryzen 9 3900XT's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
64 KB (per core)
L2 Cache
512 KB (per core)
L3 Cache
64 MB
πŸ—οΈ

Zen 2 Architecture & Process

Manufacturing and design details

The AMD Ryzen 9 3900XT is built on AMD's 7 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in 9 3900XT incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Zen 2
Codename
Matisse 2
Process Node
7 nm
Foundry
TSMC
Transistors
7,600 million
Die Size
2x 74 mmΒ²
Generation
Ryzen 9 (Zen 2 (Matisse))
πŸ”’

Zen 2 Instruction Set Features

Supported CPU instructions and extensions

The Ryzen 9 3900XT by AMD supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
SSE3
SSSE3
SSE4A
SSE4.1
SSE4.2
AES
AVX
AVX2
BMI1
BMI2
SHA
F16C
FMA3
AMD64
AMD-V
SMAP
SMEP
SMT
Precision Boost 2
XFR 2
πŸ”Œ

9 3900XT Power & Thermal

TDP and power specifications

The AMD Ryzen 9 3900XT has a TDP (Thermal Design Power) of 105W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
105W
PPT
142 W
πŸ”§

AMD Socket AM4 Platform & Socket

Compatibility information

The Ryzen 9 3900XT uses the AMD Socket AM4 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
AMD Socket AM4
PCIe
Gen 4, 24 Lanes(CPU only)
Package
Β΅OPGA-1331
DDR5

AMD Socket AM4 Memory Support

RAM compatibility and speeds

Memory support specifications for the 9 3900XT define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Ryzen 9 3900XT determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR4
Memory Bus
Dual-channel
Memory Bandwidth
51.2 GB/s
πŸ“¦

Ryzen 9 3900XT Product Information

Release and pricing details

The AMD Ryzen 9 3900XT is manufactured by AMD and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Ryzen 9 3900XT by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Jul 2020
Launch Price
$499
Market
Desktop
Status
Active
Part Number
100-100000277WOF

Ryzen 9 3900XT Benchmark Scores

3dmark_16_threadsSource

3DMark 16-thread tests AMD Ryzen 9 3900XT with heavily-threaded game workloads. This shows performance in games that fully utilize high-core-count CPUs for maximum parallelization. The most demanding and well-optimized games can leverage this many threads.

3dmark_16_threads #72 of 166
7,537
46%
Max: 16,374
Compare with other CPUs

3dmark_2_threadsSource

3DMark 2-thread tests AMD Ryzen 9 3900XT performance with dual-threaded game workloads. This shows capability in games that use limited parallelization typical of older titles. Some game engines still primarily utilize only two threads for core logic. Dual-core performance remains relevant for many indie and older games.

3dmark_2_threads #139 of 166
1,452
57%
Max: 2,549
Compare with other CPUs

3dmark_4_threadsSource

3DMark 4-thread tests AMD Ryzen 9 3900XT with quad-threaded game workloads. This shows performance in games optimized for four cores, which represents many current titles. Quad-core optimization is common in mainstream game development.

3dmark_4_threads #136 of 166
2,796
56%
Max: 4,963
Compare with other CPUs

3dmark_8_threadsSource

3DMark 8-thread tests AMD Ryzen 9 3900XT with octa-threaded game workloads. This shows performance in well-optimized modern games that leverage eight threads effectively. AAA titles increasingly scale to eight or more threads. Open-world games and simulations particularly benefit from higher thread counts.

3dmark_8_threads #106 of 166
5,200
56%
Max: 9,298

3dmark_max_threadsSource

3DMark max threads tests AMD Ryzen 9 3900XT using all available threads for game workloads. This shows the maximum parallel gaming performance capability of the processor. This reveals the ceiling of what games could achieve with perfect thread scaling. Future games may increasingly approach this level of parallelization.

3dmark_max_threads #53 of 166
8,515
46%
Max: 18,441

3dmark_single_threadSource

3DMark CPU single-thread tests how AMD Ryzen 9 3900XT handles game physics and AI calculations on one core. This is critical for games that rely on single-thread performance. Many games still bottleneck on single-core speed despite having multiple threads. Higher scores indicate better frame rates in CPU-limited gaming scenarios.

3dmark_single_thread #143 of 166
735
57%
Max: 1,293

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how AMD Ryzen 9 3900XT performs in parallel rendering workloads like video production and 3D animation. The R15 version remains useful for comparing against older hardware benchmarks. Higher scores directly correlate with faster render times in Cinema 4D and similar 3D applications.

cinebench_cinebench_r15_multicore #245 of 1788
2,790
19%
Max: 14,978
Compare with other CPUs

cinebench_cinebench_r15_singlecoreSource

Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how AMD Ryzen 9 3900XT handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance. A higher single-core score means snappier system responsiveness in everyday use.

cinebench_cinebench_r15_singlecore #244 of 1245
393
19%
Max: 2,114

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on AMD Ryzen 9 3900XT. The more demanding workload provides better differentiation between current-generation processors.

cinebench_cinebench_r20_multicore #245 of 1788
11,628
19%
Max: 62,412
Compare with other CPUs

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of AMD Ryzen 9 3900XT. The increased complexity provides more accurate performance differentiation between modern CPUs.

cinebench_cinebench_r20_singlecore #245 of 1784
1,641
19%
Max: 8,811
Compare with other CPUs

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of AMD Ryzen 9 3900XT after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss.

cinebench_cinebench_r23_multicore #245 of 1788
27,688
19%
Max: 148,601
Compare with other CPUs

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how AMD Ryzen 9 3900XT maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance.

cinebench_cinebench_r23_singlecore #245 of 1788
3,909
19%
Max: 20,979
Compare with other CPUs

geekbench_multicoreSource

Geekbench multi-core tests AMD Ryzen 9 3900XT across real-world workloads including image processing, machine learning, and data compression. All available threads are utilized to measure parallel performance. Higher scores indicate better capability in multitasking and content creation.

geekbench_multicore #109 of 711
9,950
44%
Max: 22,515
Compare with other CPUs

πŸ† Top 5 Performers

geekbench_singlecoreSource

Geekbench single-core measures how fast one thread of AMD Ryzen 9 3900XT can process tasks like web browsing and document editing. This score correlates with how snappy the system feels during normal use. Many applications still depend primarily on single-thread performance.

geekbench_singlecore #178 of 711
1,739
51%
Max: 3,401
Compare with other CPUs

passmark_data_compressionSource

Data compression measures how fast AMD Ryzen 9 3900XT can compress and decompress files. This is important for archiving, backup software, and file transfer applications. Higher scores mean faster ZIP, RAR, and backup operations.

passmark_data_compression #142 of 528
452,328
8%
Max: 5,427,555
Compare with other CPUs

πŸ† Top 5 Performers

#1 AMD EPYC 9965
5,427,555
#2 AMD EPYC 9845
4,680,013
#3 AMD EPYC 9755
4,517,407
#4 AMD EPYC 9745
3,929,890

passmark_data_encryptionSource

Data encryption tests how fast AMD Ryzen 9 3900XT can encrypt information using AES and other algorithms. This is critical for security applications, VPNs, and secure communications.

passmark_data_encryption #131 of 528
28,634
9%
Max: 316,606
Compare with other CPUs

πŸ† Top 5 Performers

#1 AMD EPYC 9965
316,606
#2 AMD EPYC 9845
296,808
#3 AMD EPYC 9755
284,927
#4 AMD EPYC 9754
231,891
#5 AMD EPYC 9745
229,447

passmark_extended_instructionsSource

Extended instructions tests AMD Ryzen 9 3900XT performance using SSE and AVX instruction sets. These specialized instructions accelerate multimedia, scientific, and AI workloads. Video encoding and image processing heavily utilize SIMD capabilities.

passmark_extended_instructions #161 of 528
28,586
7%
Max: 392,159
Compare with other CPUs

πŸ† Top 5 Performers

#1 AMD EPYC 9965
392,159
#2 AMD EPYC 9845
314,798
#3 AMD EPYC 9755
303,321
#4 AMD EPYC 9745
280,477

passmark_find_prime_numbersSource

Find prime numbers tests AMD Ryzen 9 3900XT ability to identify primes through intensive calculations. This is a pure computational benchmark that stresses CPU arithmetic units without memory bottlenecks. The test reveals raw mathematical processing capability. Higher scores indicate superior arithmetic throughput independent of memory subsystem performance.

passmark_find_prime_numbers #127 of 528
214
9%
Max: 2,422
Compare with other CPUs

passmark_floating_point_mathSource

Floating point math measures how AMD Ryzen 9 3900XT handles decimal calculations critical for scientific computing and 3D rendering. This affects performance in CAD and physics simulations. Game physics engines also rely heavily on floating point operations.

passmark_floating_point_math #247 of 528
58,513
5%
Max: 1,141,430
Compare with other CPUs

πŸ† Top 5 Performers

#1 AMD EPYC 9965
1,141,430
#2 AMD EPYC 9845
978,377
#3 AMD EPYC 9755
922,900
#4 AMD EPYC 9745
761,219
#5 AMD EPYC 9655P
710,260

passmark_integer_mathSource

Integer math tests how fast AMD Ryzen 9 3900XT processes whole number calculations essential for database operations and compression algorithms. This is fundamental to general computing performance.

passmark_integer_math #193 of 528
99,722
6%
Max: 1,806,439
Compare with other CPUs

πŸ† Top 5 Performers

#1 AMD EPYC 9965
1,806,439
#2 AMD EPYC 9845
1,687,531
#3 AMD EPYC 9755
1,549,946
#4 AMD EPYC 9745
1,224,315

passmark_multithreadSource

PassMark multi-thread tests AMD Ryzen 9 3900XT across integer math, floating point, compression, and encryption using all cores. This provides an overall multi-threaded CPU performance score.

passmark_multithread #169 of 528
32,575
19%
Max: 174,825
Compare with other CPUs

passmark_physicsSource

Physics tests how AMD Ryzen 9 3900XT handles physics simulations used in games and engineering software. This measures performance in calculating object interactions and movements. Games with complex physics benefit from higher scores.

passmark_physics #206 of 528
1,776
6%
Max: 27,806
Compare with other CPUs

πŸ† Top 5 Performers

#1 AMD EPYC 9755
27,806
#2 AMD EPYC 9655P
26,810
#3 AMD EPYC 9655
25,958
#4 AMD EPYC 9684X
24,686
#5 AMD EPYC 9575F
22,021

passmark_random_string_sortingSource

Random string sorting measures how fast AMD Ryzen 9 3900XT can organize text data. This is important for database operations, search indexing, and data processing applications. Applications that process large amounts of text benefit from higher scores.

passmark_random_string_sorting #153 of 528
48,327
8%
Max: 609,901
Compare with other CPUs

πŸ† Top 5 Performers

#1 AMD EPYC 9965
609,901
#2 AMD EPYC 9755
571,185
#3 AMD EPYC 9845
538,060
#4 AMD EPYC 9745
468,975
#5 AMD EPYC 9655P
455,310

passmark_single_threadSource

PassMark single-thread measures per-core performance of AMD Ryzen 9 3900XT across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use. Many legacy applications and games still depend heavily on single-thread speed.

passmark_single_thread #410 of 528
2,742
54%
Max: 5,097
Compare with other CPUs

passmark_singlethreadSource

PassMark single-thread measures per-core performance of AMD Ryzen 9 3900XT across various computational tasks. This score is critical for gaming and single-threaded applications.

passmark_singlethread #410 of 528
2,742
54%
Max: 5,097
Compare with other CPUs

About AMD Ryzen 9 3900XT

is a high-performance processor engineered for demanding users and enthusiasts. Built on a 7 nm manufacturing process, the AMD Ryzen 9 3900XT delivers exceptional efficiency and performance. This chip features 12 cores and 24 threads, making it ideal for multitasking and complex workloads. Its base clock speed of 3.90 GHz and a turbo clock of 4.70 GHz ensure robust performance across a range of applications. The AMD Ryzen 9 3900XT is a strong contender in the high-end desktop market, offering excellent value for its capabilities. The performance of the AMD Ryzen 9 3900XT is highlighted by its impressive PassMark scores. It achieves 452,328 points in data compression, 99,722 points in integer math, 58,513 points in floating-point math, and 48,327 points in random string sorting. These scores reflect its versatility and power in both single and multi-threaded tasks. The AMD Ryzen 9 3900XT also scores 32,575 points in multithreaded performance, demonstrating its effectiveness in handling heavy workloads. With these numbers, the AMD Ryzen 9 3900XT stands out as a top-tier processor. In terms of competitive positioning, the AMD Ryzen 9 3900XT holds its own against similarly priced Intel processors. Its 12-core, 24-thread design and 7 nm process make it a compelling choice for users seeking performance without compromise. The chip’s 105W TDP also ensures it remains energy-efficient while delivering high performance. The AMD Ryzen 9 3900XT is particularly well-suited for gaming, content creation, and professional applications. It offers a balanced mix of power and efficiency, making it a solid upgrade option. For those considering an upgrade, the AMD Ryzen 9 3900XT offers a significant performance boost over older generations. It supports the AMD Socket AM4, allowing compatibility with a range of motherboards. Users looking to maximize performance should ensure their system supports the latest AM4 chipsets. The AMD Ryzen 9 3900XT is a great investment for those seeking long-term value.
  • 12 cores and 24 threads
  • 7 nm manufacturing process
  • 105W TDP
  • Supports AMD Socket AM4

The Intel Equivalent of Ryzen 9 3900XT

Looking for a similar processor from Intel? The Intel Core i9-10850K offers comparable performance and features in the Intel lineup.

Intel Core i9-10850K

Intel β€’ 10 Cores

View Specs Compare

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