AMD

AMD Ryzen 9 3900

AMD processor specifications and benchmark scores

12
Cores
24
Threads
4.3
GHz Boost
65W
TDP
๐Ÿ”“Unlocked

AMD Ryzen 9 3900 Specifications

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Ryzen 9 3900 Core Configuration

Processing cores and threading

The AMD Ryzen 9 3900 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
โฑ๏ธ

9 3900 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Ryzen 9 3900 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 3900 by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.1 GHz
Boost Clock
4.3 GHz
Multiplier
31x ๐Ÿ”“
๐Ÿ’พ

AMD's Ryzen 9 3900 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the 9 3900 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 3900'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
๐Ÿ—๏ธ

Zen 2 Architecture & Process

Manufacturing and design details

The AMD Ryzen 9 3900 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 3900 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Zen 2
Codename
Matisse
Process Node
7 nm
Foundry
TSMC
Transistors
7,600 million
Die Size
2x 74 mmยฒ
Generation
Ryzen 9 (Zen 2 (Matisse))
๐Ÿ”ข

Zen 2 Instruction Set Features

Supported CPU instructions and extensions

The Ryzen 9 3900 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
๐Ÿ”Œ

9 3900 Power & Thermal

TDP and power specifications

The AMD Ryzen 9 3900 has a TDP (Thermal Design Power) of 65W, 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
65W
PPT
88 W
Tj Max
95ยฐC
๐Ÿ”ง

AMD Socket AM4 Platform & Socket

Compatibility information

The Ryzen 9 3900 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
Chipsets
A300, X300, A320, B350, X370, B450, X470, A520, B550, X570
PCIe
Gen 4, 24 Lanes(CPU only)
Package
ยตOPGA-1331
DDR5

AMD Socket AM4 Memory Support

RAM compatibility and speeds

Memory support specifications for the 9 3900 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 3900 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
๐Ÿ“ฆ

Ryzen 9 3900 Product Information

Release and pricing details

The AMD Ryzen 9 3900 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 3900 by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Sep 2019
Launch Price
$499
Market
Desktop
Status
Active
Part Number
100-000000070

Ryzen 9 3900 Benchmark Scores

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 3900 performs in parallel rendering workloads like video production and 3D animation. Higher scores mean faster render times in professional applications.

cinebench_cinebench_r15_multicore #271 of 1788
2,619
17%
Max: 14,978

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 3900 handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance.

cinebench_cinebench_r15_singlecore #271 of 1245
369
17%
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 3900.

cinebench_cinebench_r20_multicore #271 of 1788
10,914
17%
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 3900.

cinebench_cinebench_r20_singlecore #271 of 1784
1,540
17%
Max: 8,811

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 3900 after thermal limits kick in.

cinebench_cinebench_r23_multicore #271 of 1788
25,988
17%
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 3900 maintains boost clocks under continuous load.

cinebench_cinebench_r23_singlecore #271 of 1788
3,669
17%
Max: 20,979

passmark_data_compressionSource

Data compression measures how fast AMD Ryzen 9 3900 can compress and decompress files. This is important for archiving, backup software, and file transfer applications.

passmark_data_compression #158 of 528
413,887
8%
Max: 5,427,555
Compare with other CPUs

๐Ÿ† 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

๐Ÿ“ Nearby Performers

passmark_data_encryptionSource

Data encryption tests how fast AMD Ryzen 9 3900 can encrypt information using AES and other algorithms. This is critical for security applications, VPNs, and secure communications. Modern CPUs with AES-NI hardware acceleration score significantly higher. Disk encryption, secure browsing, and VPN performance all benefit from faster encryption.

passmark_data_encryption #139 of 528
26,657
8%
Max: 316,606
Compare with other CPUs

๐Ÿ† 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 3900 performance using SSE and AVX instruction sets. These specialized instructions accelerate multimedia, scientific, and AI workloads.

passmark_extended_instructions #181 of 528
26,073
7%
Max: 392,159
Compare with other CPUs

๐Ÿ† 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 3900 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.

passmark_find_prime_numbers #138 of 528
203
8%
Max: 2,422
Compare with other CPUs

passmark_floating_point_mathSource

Floating point math measures how AMD Ryzen 9 3900 handles decimal calculations critical for scientific computing and 3D rendering. This affects performance in CAD and physics simulations.

passmark_floating_point_math #254 of 528
56,730
5%
Max: 1,141,430
Compare with other CPUs

๐Ÿ† 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 3900 processes whole number calculations essential for database operations and compression algorithms. This is fundamental to general computing performance. Encryption and data processing heavily rely on integer operations. Higher scores benefit applications that work primarily with non-decimal numbers.

passmark_integer_math #203 of 528
97,698
5%
Max: 1,806,439
Compare with other CPUs

๐Ÿ† 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 3900 across integer math, floating point, compression, and encryption using all cores. This provides an overall multi-threaded CPU performance score. The combined result reflects general-purpose parallel computing capability. Results can be compared against millions of submissions in the PassMark database.

passmark_multithread #190 of 528
30,586
17%
Max: 174,825
Compare with other CPUs

๐Ÿ† Top 5 Performers

passmark_physicsSource

Physics tests how AMD Ryzen 9 3900 handles physics simulations used in games and engineering software. This measures performance in calculating object interactions and movements.

passmark_physics #236 of 528
1,617
6%
Max: 27,806
Compare with other CPUs

๐Ÿ† 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 3900 can organize text data. This is important for database operations, search indexing, and data processing applications.

passmark_random_string_sorting #167 of 528
44,902
7%
Max: 609,901
Compare with other CPUs

๐Ÿ† 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 3900 across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use.

passmark_single_thread #438 of 528
2,604
51%
Max: 5,097
Compare with other CPUs

passmark_singlethreadSource

PassMark single-thread measures per-core performance of AMD Ryzen 9 3900 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_singlethread #438 of 528
2,604
51%
Max: 5,097
Compare with other CPUs

About AMD Ryzen 9 3900

Delving into the Ryzen 9 3900 by AMD reveals a powerhouse built on Zen 2 architecture with 12 cores and 24 threads, delivering a base clock of 3.10 GHz that boosts up to 4.30 GHz for demanding tasks. Its 65W TDP stands out as remarkably efficient for such multi-threaded prowess, especially on the 7nm process with a massive 64MB L3 cache that accelerates data-heavy workloads. Benchmark scores underscore its practical performance, like the 413,887 points in PassMark data compression and 30,586 in multithreading, making it ideal for video editing, 3D rendering, and software compilation where parallel processing shines. Investigators note how the 97,698 integer math points handle everyday productivity with ease, while floating-point math at 56,730 points supports scientific simulations effectively. Even random string sorting at 44,902 points highlights its organizational efficiency in database operations. This AMD Ryzen 9 3900 processor proves its mettle in real-world scenarios, balancing speed and thermal headroom without excessive power draw. Shifting focus to gaming capabilities, the Ryzen 9 3900 by AMD punches above its weight in modern titles, leveraging high thread counts for CPU-intensive games like strategy sims or open-world epics that scale beyond typical quad-cores. Paired with a strong GPU, its turbo clock ensures smooth 1080p and 1440p frame rates, though single-thread performance trails slightly behind newer rivals in pure e-sports scenarios. Cost-effectiveness shines through its $499 launch price in September 2019, offering exceptional value even today on the mature AM4 socket platform requiring compatible motherboards like B450 or X570. Platform requirements remain straightforward DDR4 RAM up to 128GB and no need for exotic cooling beyond a decent air cooler making upgrades accessible for enthusiasts probing budget builds. AMD's Ryzen 9 3900 processor continues to deliver bang-for-buck in hybrid gaming-productivity rigs, outpacing many contemporaries in sustained loads. Overall, it invites deeper investigation for users seeking longevity without premium outlays.

The Intel Equivalent of Ryzen 9 3900

Looking for a similar processor from Intel? The Intel Core i9-10920X offers comparable performance and features in the Intel lineup.

Intel Core i9-10920X

Intel โ€ข 12 Cores

View Specs Compare

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