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AMD Ryzen 9 Pro 3900 Review | 78 Data compared

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  • Avg. price in UK: ~£180
  • Avg. price in US: ~$220
  • PassMark benchmark result: 31232
  • N. of physical cores: 12
  • CPU boost clock speed: 4.3 GHz

AMD Ryzen 9 Pro 3900 review. Compare 78 technical specifications and user reviews to see how it ranks among processors and if it is worth buying.

6.3

Overall score

What it is: An overall evaluation of the processor's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best processors on the market.

Score components:

90.0%

6.3

Technical Score

10.0%

?

User score

Good
6.3

Technical Score

What it is: An assessment of the processor's technical performance, covering key areas such as processing performance, core configuration, efficiency, platform support, integrated features, and thermal behavior.

When it matters: When you want to compare processors based on technical performance and available features.

Score components:

60.0%

5.9

Performance

18.0%

7.4

Cache & Architecture

10.0%

7.4

Memory & PCIe

7.0%

4.5

Power & Thermal

4.0%

8.4

Platform

1.0%

3.4

Integrated Graphics

Good
?

User score

What it is: A rating that combines user reviews and the total number of reviews received by the processor.

When it matters: When you want to know how a processor performs in real workloads and how reliable it is for gaming, productivity, and efficiency according to user feedback.

Score components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 5.7
    Gaming

    Score components:

    30.0%

    4.5

    PassMark single-core benchmark score

    25.0%

    4.7

    Geekbench 6 single-core benchmark score

    20.0%

    5.5

    CPU boost clock speed

    17.0%

    10

    L3 cache

    8.0%

    5.1

    N. of physical cores

  • 6.0
    Video editing

    Score components:

    45.0%

    4.4

    Geekbench 6 multi-core benchmark score

    20.0%

    5.1

    N. of physical cores

    20.0%

    7.6

    CPU threads

    15.0%

    10

    L3 cache

  • No image
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Best prices in UK

    N/A~ £180

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The AMD Ryzen 9 PRO 3900 is a high-performance 12-core, 24-thread desktop processor built on a 7nm Zen 2 architecture, primarily designed for professional OEM and business environments. It features a 3.1 GHz base clock, a 4.3 GHz boost clock, a massive 64MB L3 cache, and support for PCIe 4.0 and DDR4-3200 memory. Its primary advantages include exceptional multi-threaded performance for content creation, enterprise-grade security features like AMD Memory Guard, and a highly efficient 65W TDP that allows for cool and quiet operation in compact systems. However, it lacks integrated graphics, is generally unavailable as a standalone retail product for DIY builders, and has lower clock speeds and single-core performance compared to its 105W counterpart, the 3900X.

Technical Specifications of processor AMD Ryzen 9 Pro 3900

Technical Score

What it is: An assessment of the processor's technical performance, covering key areas such as processing performance, core configuration, efficiency, platform support, integrated features, and thermal behavior.

When it matters: When you want to compare processors based on technical performance and available features.

Score components:

60.0%

?

Performance

18.0%

?

Cache & Architecture

10.0%

?

Memory & PCIe

7.0%

?

Power & Thermal

4.0%

?

Platform

1.0%

?

Integrated Graphics

6.3
AMD Ryzen 9 Pro 3900 has a technical score of 6.27 points, which is higher than that of 68.9% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the processor.

When it matters: When you want to know how a processor performs in real workloads and how reliable it is for gaming, productivity, and efficiency according to user feedback.

Score components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
What it is: An indicator based on the number of reviews received by the processor.
When it matters: When you prefer to choose a processor reviewed and selected by many other buyers.
1.0
AMD Ryzen 9 Pro 3900 has a popularity of 1 points, which is higher than 0% of products in this category.
Ratio quality/price

What it is: An indicator that combines the processor's overall rating with its cost.

When it matters: When you are looking for a processor with a good balance between performance, efficiency, and price.

Score components:

60.0%

6.3

Overall score

40.0%

9.6

Price

7.3
AMD Ryzen 9 Pro 3900 has a quality-to-price ratio of 7.3 points, which is higher than 79.4% of products in this category.
Brand name
What it is: The manufacturer or brand of the product.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

AMD
Processor type
What it is: The kind of system the processor is built for, such as desktop PCs, laptops, workstations, or servers.
When it matters: When you want a processor meant for the kind of machine you are actually building or buying, rather than a chip aimed at a different class of system.

Importance: HIGH

desktop
AMD Ryzen 9 Pro 3900 belongs to the desktop processor class, which is more advanced than that of 56% of processors and equal to that of 37.9% of processors.
CPU socket
What it is: The physical socket the processor fits into on the motherboard.
When it matters: When you need to make sure the CPU can actually be installed on a specific motherboard.

Importance: HIGH

AM4
AMD Ryzen 9 Pro 3900 uses the AM4 CPU socket, which is newer than that of 76.3% of processors and equal to that of 9.7% of processors.
Chipset
What it is: The motherboard chipset families officially meant to work with the processor.
When it matters: When you are checking whether a CPU will work with the motherboard features and platform you plan to use.

Importance: HIGH

X570, B550, A520, X470, B450
AMD Ryzen 9 Pro 3900 supports X570, B550, A520, X470, B450 chipsets, which is broader compatibility than 67.7% of processors and equal to that of 1.6% of processors.
CPU architecture
What it is: The processor family or design generation behind the chip, such as Zen 4 or Raptor Lake.
When it matters: When you are comparing CPUs across generations and want a clearer sense of their design age, feature level, and expected performance class.

Importance: HIGH

x86-64
AMD Ryzen 9 Pro 3900 uses the x86-64 architecture, which is more advanced than that of 1.7% of processors and equal to that of 98.3% of processors.
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N. of physical cores
What it is: The number of physical CPU cores on the processor.
When it matters: When you run workloads that benefit from more real cores.

Importance: HIGH

Good value: 8+

12
AMD Ryzen 9 Pro 3900 has 12 CPU cores, which is more than 81.5% of processors and equal to 5.5% of processors.
CPU threads
What it is: The total number of processing threads the CPU can handle at once.
When it matters: When you run heavily threaded workloads or multitask a lot.

Importance: HIGH

Good value: 16+

24
AMD Ryzen 9 Pro 3900 offers 24 CPU threads, which is more than 90.3% of processors and equal to 4% of processors.
Threads per core
What it is: The number of threads each physical core can handle at once.
When it matters: When you want to understand how much thread-level parallelism each core can provide in multitasking or heavily threaded work.

Importance: MEDIUM

Good value: 2

2
AMD Ryzen 9 Pro 3900 offers 2 threads per core, which is more than 30.4% of processors and equal to 69.6% of processors.
CPU boost clock speed
What it is: The highest clock speed the processor can reach under boost conditions.
When it matters: When you care about peak speed in short bursts.

Importance: HIGH

Good value: >4.7 GHz

4.3 GHz
AMD Ryzen 9 Pro 3900 reaches a boost clock of 4.3 GHz which is higher than that of 48.2% of processors and equal to that of 2.9% of processors.
CPU base clock speed
What it is: The processor's normal all-core starting frequency before boost behavior raises clocks temporarily.
When it matters: When you care about steadier performance in longer workloads rather than short burst speed alone.

Importance: MEDIUM

12 x 3.1 GHz
AMD Ryzen 9 Pro 3900 has a base clock of 12x3.1 GHz which is equal to that of 100% of processors.
Show more
Semiconductor size
What it is: The manufacturing process node used to produce the processor, usually expressed in nanometers.
When it matters: When efficiency, heat, and the relative modernity of the chip-making process matter to your comparison.

Importance: HIGH

Good value: <10 nm

7 nm
AMD Ryzen 9 Pro 3900 uses a 7 nm process node, which is more advanced than that of 71.5% of processors and equal to that of 10.9% of processors.
Foundry
What it is: The semiconductor manufacturer that physically fabricates the processor chip.
When it matters: When process source, manufacturing generation, or foundry differences matter to your comparison more than day-to-day performance alone.

Importance: MEDIUM

TSMC 7 nm
AMD Ryzen 9 Pro 3900 is built on the TSMC 7 nm foundry process, which is more advanced than that of 56.7% of processors and equal to that of 9.4% of processors.
L3 cache
What it is: The total amount of L3 cache available on the processor.
When it matters: When you want better performance in cache-sensitive workloads and games.

Importance: MEDIUM

Good value: >=16 MB

64 MB
AMD Ryzen 9 Pro 3900 has an L3 cache of 64 MB which is larger than that of 94.6% of processors and equal to that of 2.8% of processors.
L2 cache
What it is: The total amount of L2 cache available across the processor.
When it matters: When you want to compare CPU design efficiency and how much fast intermediate cache the cores have available.

Importance: MEDIUM

Good value: >=6 MB

6 MB
AMD Ryzen 9 Pro 3900 has an L2 cache of 6 MB which is larger than that of 67% of processors and equal to that of 4% of processors.
L1 cache
What it is: The total amount of L1 cache built into the processor, which sits closest to the cores.
When it matters: When you are comparing low-level CPU design details rather than the broader performance picture buyers usually notice first.

Importance: MEDIUM

Good value: >=512 KB

768 KB
AMD Ryzen 9 Pro 3900 has an L1 cache of 768 KB which is larger than that of 78.2% of processors and equal to that of 3.4% of processors.
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DDR memory version
What it is: The RAM generation the processor is designed to support, such as DDR4 or DDR5.
When it matters: When you need the CPU to match the kind of memory platform you want to buy or reuse.

Importance: MEDIUM

Good value: DDR5

DDR4
AMD Ryzen 9 Pro 3900 supports DDR DDR4, which is newer than that of 26.3% of processors and equal to that of 31.7% of processors.
Maximum memory speed
What it is: The highest official memory speed supported by the processor.
When it matters: When you choose RAM and want to know the supported speed ceiling.

Importance: HIGH

Good value: >=4800 MHz

3,200 MHz
AMD Ryzen 9 Pro 3900 supports memory speeds up to 3200 MHz, which is higher than that of 51.5% of processors and equal to 8.3% of processors.
Max memory speed (JEDEC)
What it is: The highest official RAM speed the processor supports under standard JEDEC settings, before any memory overclocking profiles are applied.
When it matters: When officially supported stock RAM speed matters more than XMP, EXPO, or manual memory tuning.

Importance: MEDIUM

Good value: >=5600 MHz

DDR4-3200 MHz
AMD Ryzen 9 Pro 3900 supports JEDEC memory speeds up to DDR4-3200 MHz, which is higher than that of 51.1% of processors and equal to 8.4% of processors.
Max memory speed (XMP / EXPO)
What it is: The highest memory speed supported through XMP or EXPO profiles.
When it matters: When you want faster RAM through memory profiles.

Importance: MEDIUM

Good value: >=5200 MHz

?
Maximum memory capacity
What it is: The largest total amount of memory officially supported by the processor.
When it matters: When you plan a system with very large RAM capacity.

Importance: HIGH

Good value: >=128 GB

128 GB
AMD Ryzen 9 Pro 3900 supports up to 128 GB of memory, which is more than 61.9% of processors and equal to 21.4% of processors.
Show more
Integrated graphics
What it is: Includes built-in graphics, so the system can output video without a separate graphics card.
When it matters: When you want the PC to work without a dedicated GPU, or you are building an office, media, compact, or troubleshooting-friendly system.

Importance: HIGH

no
AMD Ryzen 9 Pro 3900 does not include integrated graphics. 87.6% of processors include integrated graphics.
Integrated GPU model
What it is: The model name of the integrated graphics processor, if present.
When it matters: When you plan to use the CPU's built-in graphics.

Importance: MEDIUM

N/A
Integrated GPU execution units
What it is: The number of execution units available in the integrated graphics part of the processor.
When it matters: When you plan to rely on built-in graphics and want a better sense of its light gaming, display, or media capability.

Importance: MEDIUM

Good value: >=24

N/A
Integrated GPU base frequency
What it is: The base operating frequency of the integrated GPU.
When it matters: When integrated graphics performance matters to you.

Importance: MEDIUM

Good value: >=350 MHz

?
Integrated media encoders/decoders
What it is: The hardware media formats the processor can encode or decode directly.
When it matters: When you stream, edit video, or rely on hardware media acceleration.

Importance: LOW

N/A
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TDP (Thermal design power)
What it is: The rated thermal design power, which gives a general idea of cooling and power needs.
When it matters: When you choose a cooler or build in a tighter case.

Importance: HIGH

Good value: <30 W

65 W
AMD Ryzen 9 Pro 3900 has a TDP of 65 W which is higher than that of 70% of processors and equal to that of 16.1% of processors.
Base power (PL1)
What it is: The sustained power target used for longer CPU loads.
When it matters: When you choose cooling and power delivery for sustained workloads.

Importance: MEDIUM

Good value: <30 W

65 W
AMD Ryzen 9 Pro 3900 has a base power of 65 W which is higher than that of 70.3% of processors and equal to that of 16.4% of processors.
Boost power (PL2)
What it is: The short-term boost power limit the processor may draw under heavier turbo loads.
When it matters: When you size cooling and power delivery for peak turbo behavior.

Importance: MEDIUM

Good value: <50 W

88 W
AMD Ryzen 9 Pro 3900 has a boost power of 88 W which is higher than that of 57.6% of processors and equal to that of 6.3% of processors.
Tau (power duration limit)
What it is: The time limit the CPU can stay at higher boost power before dropping toward sustained power.
When it matters: When you want to understand turbo behavior under longer loads.

Importance: MEDIUM

Good value: <=28 s

N/A
Configurable TDP
What it is: Allows the processor to run in alternate power modes instead of being fixed to one default TDP target.
When it matters: When you want more control over heat, noise, and power draw in compact systems, quieter builds, or thermally limited machines.

Importance: LOW

no
AMD Ryzen 9 Pro 3900 does not support configurable TDP. 52.9% of processors support configurable TDP.
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AMD Ryzen 9 Pro 3900 vs the average processor

  • 8x larger L3 cache
    AMD Ryzen 9 Pro 3900 has a higher L3 cache than the average processor (64 MB vs 8 MB). The average processor has L3 cache of 8 MB.
    What it is: The total amount of L3 cache available on the processor.
    When it matters: When you want better performance in cache-sensitive workloads and games.

    Importance: MEDIUM

    Good value: >=16 MB

    AMD Ryzen 9 Pro 3900 has a higher L3 cache than the average processor (64 MB vs 8 MB). The average processor has L3 cache of 8 MB.64 MB vs 8 MB
  • 2.27x better multi-core performance
    AMD Ryzen 9 Pro 3900 has a higher multi-core performance than the average processor (6,321 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.
    What it is: A Cinebench R20 score that reflects how well the processor handles long, heavy rendering workloads across many cores.
    When it matters: When you care about sustained multi-core performance in rendering, compiling, heavy creation work, or productivity workloads that use many threads.

    Importance: HIGH

    Good value: >4700

    AMD Ryzen 9 Pro 3900 has a higher multi-core performance than the average processor (6,321 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.6,321 vs 2,783
  • 16 more CPU threads
    AMD Ryzen 9 Pro 3900 has more CPU threads than the average processor (24 vs 8). The average processor has 8 CPU threads.
    What it is: The total number of processing threads the CPU can handle at once.
    When it matters: When you run heavily threaded workloads or multitask a lot.

    Importance: HIGH

    Good value: 16+

    AMD Ryzen 9 Pro 3900 has more CPU threads than the average processor (24 vs 8). The average processor has 8 CPU threads.24 vs 8
  • 2.97x higher PassMark score
    AMD Ryzen 9 Pro 3900 has a higher PassMark benchmark score than the average processor (31,232 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.
    What it is: A benchmark score that gives a broad idea of overall processor performance.
    When it matters: When you want a quick overall performance comparison.

    Importance: HIGH

    Good value: >19000

    AMD Ryzen 9 Pro 3900 has a higher PassMark benchmark score than the average processor (31,232 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.31,232 vs 10,532.5
  • 6 more CPU cores
    AMD Ryzen 9 Pro 3900 has more CPU cores than the average processor (12 vs 6). The average processor has 6 CPU cores.
    What it is: The number of physical CPU cores on the processor.
    When it matters: When you run workloads that benefit from more real cores.

    Importance: HIGH

    Good value: 8+

    AMD Ryzen 9 Pro 3900 has more CPU cores than the average processor (12 vs 6). The average processor has 6 CPU cores.12 vs 6
  • Unlocked for overclocking
    AMD Ryzen 9 Pro 3900 has an unlocked multiplier, the average processor does not.
    What it is: Has an unlocked CPU multiplier, which makes manual CPU overclocking much easier on supported platforms.
    When it matters: When you plan to push clock speeds beyond stock settings instead of leaving the processor completely at default behavior.

    Importance: MEDIUM

    AMD Ryzen 9 Pro 3900 has an unlocked multiplier, the average processor does not.
  • 8 more PCIe lanes
    AMD Ryzen 9 Pro 3900 has more PCIe lanes than the average processor (24 vs 16). The average processor offers 16 PCIe lanes.
    What it is: The number of PCIe lanes provided directly by the processor.
    When it matters: When you connect fast GPUs, SSDs, or expansion cards.

    Importance: HIGH

    Good value: >=20

    AMD Ryzen 9 Pro 3900 has more PCIe lanes than the average processor (24 vs 16). The average processor offers 16 PCIe lanes.24 vs 16
  • 3.11x more L3 per core
    AMD Ryzen 9 Pro 3900 has more L3 cache per core than the average processor (5.3 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.
    What it is: The amount of L3 cache effectively available per CPU core.
    When it matters: When you are comparing how much shared cache each core can draw on in deeper technical analysis.

    Importance: MEDIUM

    Good value: >=2 MB/core

    AMD Ryzen 9 Pro 3900 has more L3 cache per core than the average processor (5.3 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.5.33 MB/core vs 1.714 MB/core
  • Modern CPU socket
    AMD Ryzen 9 Pro 3900 uses a more modern CPU socket than the average processor (AM4 vs FP2).
  • 2.27x better multi-core performance
    AMD Ryzen 9 Pro 3900 has a higher multi-core performance than the average processor (6,321 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.
  • 16 more CPU threads
    AMD Ryzen 9 Pro 3900 has more CPU threads than the average processor (24 vs 8). The average processor has 8 CPU threads.
  • 2.97x higher PassMark score
    AMD Ryzen 9 Pro 3900 has a higher PassMark benchmark score than the average processor (31,232 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.
  • 6 more CPU cores
    AMD Ryzen 9 Pro 3900 has more CPU cores than the average processor (12 vs 6). The average processor has 6 CPU cores.
  • Unlocked for overclocking
    AMD Ryzen 9 Pro 3900 has an unlocked multiplier, the average processor does not.
  • 90.3% higher multi-core score
    AMD Ryzen 9 Pro 3900 has a higher Geekbench 6 multi-core score than the average processor (9,122 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.
  • 11.5% higher single-core score
    AMD Ryzen 9 Pro 3900 has a higher Geekbench 6 single-core score than the average processor (1,640 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
  • 8x larger L3 cache
    AMD Ryzen 9 Pro 3900 has a higher L3 cache than the average processor (64 MB vs 8 MB). The average processor has L3 cache of 8 MB.
  • 3.11x more L3 per core
    AMD Ryzen 9 Pro 3900 has more L3 cache per core than the average processor (5.3 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.
  • 41.7% smaller process node
    AMD Ryzen 9 Pro 3900 has a lower process node than the average processor (7 nm vs 12 nm). The average processor uses a process node of 12 nm.
  • 2.4x larger L2 cache
    AMD Ryzen 9 Pro 3900 has a higher L2 cache than the average processor (6 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.
  • 2x larger L1 cache
    AMD Ryzen 9 Pro 3900 has a higher L1 cache than the average processor (768 KB vs 384 KB). The average processor has L1 cache of 384 KB.
  • More advanced foundry
    AMD Ryzen 9 Pro 3900 uses a more advanced foundry process than the average processor (TSMC 7 nm vs Intel 14 nm).
  • More advanced microarchitecture
    AMD Ryzen 9 Pro 3900 uses a more advanced microarchitecture than the average processor (Matisse vs Kaby Lake).
  • 8 more PCIe lanes
    AMD Ryzen 9 Pro 3900 has more PCIe lanes than the average processor (24 vs 16). The average processor offers 16 PCIe lanes.
  • Newer PCIe version
    AMD Ryzen 9 Pro 3900 supports a newer PCIe version than the average processor (4 vs 3.0).
  • Supports memory overclocking
    AMD Ryzen 9 Pro 3900 supports memory overclocking, the average processor does not.
  • 2x more memory capacity
    AMD Ryzen 9 Pro 3900 has more maximum memory capacity than the average processor (128 GB vs 64 GB). The average processor supports 64 GB of memory.
  • Supports ECC memory
    AMD Ryzen 9 Pro 3900 supports ECC memory, the average processor does not.
  • 5 °C lower CPU temperature
    AMD Ryzen 9 Pro 3900 has a lower CPU temperature than the average processor (95 °C vs 100 °C). The average processor runs at a CPU temperature of 100 °C.

Total
Platform
Performance
Cache & Architecture
Memory & PCIe
Power & Thermal
  • Older TPM support
    AMD Ryzen 9 Pro 3900 supports an older TPM version than the average processor (fTPM 2.0 vs PTT 2.0).
  • No integrated graphics
    AMD Ryzen 9 Pro 3900 does not include integrated graphics, the average processor does.
  • 44.4% higher base power
    AMD Ryzen 9 Pro 3900 has a higher base power draw than the average processor (65 W vs 45 W). The average processor has a base power draw of 45 W.
  • No configurable TDP
    AMD Ryzen 9 Pro 3900 does not support configurable TDP, the average processor does.
  • 5 °C lower TJ Max
    AMD Ryzen 9 Pro 3900 has a lower TJ Max than the average processor (95 °C vs 100 °C). The average processor has a TJ Max of 100 °C.
  • 44.4% higher TDP
    AMD Ryzen 9 Pro 3900 has a higher TDP than the average processor (65 W vs 45 W). The average processor has a TDP of 45 W.
  • 37.5% higher boost power
    AMD Ryzen 9 Pro 3900 has a higher boost power draw than the average processor (88 W vs 64 W). The average processor has a boost power draw of 64 W.
  • 44.4% higher base power
    AMD Ryzen 9 Pro 3900 has a higher base power draw than the average processor (65 W vs 45 W). The average processor has a base power draw of 45 W.
    What it is: The sustained power target used for longer CPU loads.
    When it matters: When you choose cooling and power delivery for sustained workloads.

    Importance: MEDIUM

    Good value: <30 W

    AMD Ryzen 9 Pro 3900 has a higher base power draw than the average processor (65 W vs 45 W). The average processor has a base power draw of 45 W.65 W vs 45 W
  • No configurable TDP
    AMD Ryzen 9 Pro 3900 does not support configurable TDP, the average processor does.
    What it is: Allows the processor to run in alternate power modes instead of being fixed to one default TDP target.
    When it matters: When you want more control over heat, noise, and power draw in compact systems, quieter builds, or thermally limited machines.

    Importance: LOW

    AMD Ryzen 9 Pro 3900 does not support configurable TDP, the average processor does.
  • 5 °C lower TJ Max
    AMD Ryzen 9 Pro 3900 has a lower TJ Max than the average processor (95 °C vs 100 °C). The average processor has a TJ Max of 100 °C.
    What it is: The highest safe operating junction temperature before the CPU starts throttling or protecting itself.
    When it matters: When you tune cooling or monitor thermals under load.

    Importance: LOW

    Good value: >=100 °C

    AMD Ryzen 9 Pro 3900 has a lower TJ Max than the average processor (95 °C vs 100 °C). The average processor has a TJ Max of 100 °C.95 °C vs 100 °C
  • No integrated graphics
    AMD Ryzen 9 Pro 3900 does not include integrated graphics, the average processor does.
    What it is: Includes built-in graphics, so the system can output video without a separate graphics card.
    When it matters: When you want the PC to work without a dedicated GPU, or you are building an office, media, compact, or troubleshooting-friendly system.

    Importance: HIGH

    AMD Ryzen 9 Pro 3900 does not include integrated graphics, the average processor does.
  • 44.4% higher TDP
    AMD Ryzen 9 Pro 3900 has a higher TDP than the average processor (65 W vs 45 W). The average processor has a TDP of 45 W.
    What it is: The rated thermal design power, which gives a general idea of cooling and power needs.
    When it matters: When you choose a cooler or build in a tighter case.

    Importance: HIGH

    Good value: <30 W

    AMD Ryzen 9 Pro 3900 has a higher TDP than the average processor (65 W vs 45 W). The average processor has a TDP of 45 W.65 W vs 45 W
  • 37.5% higher boost power
    AMD Ryzen 9 Pro 3900 has a higher boost power draw than the average processor (88 W vs 64 W). The average processor has a boost power draw of 64 W.
    What it is: The short-term boost power limit the processor may draw under heavier turbo loads.
    When it matters: When you size cooling and power delivery for peak turbo behavior.

    Importance: MEDIUM

    Good value: <50 W

    AMD Ryzen 9 Pro 3900 has a higher boost power draw than the average processor (88 W vs 64 W). The average processor has a boost power draw of 64 W.88 W vs 64 W
  • Older TPM support
    AMD Ryzen 9 Pro 3900 supports an older TPM version than the average processor (fTPM 2.0 vs PTT 2.0).
    What it is: The kind of TPM security support associated with the processor or its platform.
    When it matters: When operating-system requirements, device encryption, enterprise security, or platform trust features matter.

    Importance: LOW

    AMD Ryzen 9 Pro 3900 supports an older TPM version than the average processor (fTPM 2.0 vs PTT 2.0).fTPM 2.0 vs PTT 2.0
Total
Platform
Integrated Graphics
Power & Thermal

Graphic comparison of AMD Ryzen 9 Pro 3900 and other processors

Attribute category
Attribute
No results found

Third-party reviews

What customers like about AMD Ryzen 9 Pro 3900?

  • High core and thread count (12C/24T) provides excellent multi-threaded performance for rendering and video editing.
  • Superior power efficiency with a 65W TDP, making it ideal for small form factor (SFF) builds.
  • Strong performance-per-watt metrics compared to higher-wattage counterparts like the 3900X.
  • Includes professional-grade security features such as AMD Memory Guard and Secure Boot.
  • Supports PCIe 4.0 for faster data transfer speeds with compatible NVMe SSDs and GPUs.
  • Overclocks well, often reaching performance levels similar to the 3900X when power limits are removed.

What customers dislike about AMD Ryzen 9 Pro 3900?

  • Lower base and boost clock speeds (3.1 GHz / 4.3 GHz) compared to the retail 3900X model.
  • Limited retail availability as it was primarily intended for system integrators and OEMs.
  • Single-core performance and 1080p gaming speeds trail slightly behind Intel competitors and newer Ryzen generations.
  • Lacks integrated graphics, necessitating a dedicated GPU for any display output.
  • Actual power draw under heavy load can exceed the 65W rating, reaching closer to 90W.

Expert reviews

T
tomshardware.com
04/10/2019
AMD Ryzen 9 3900 Tested: Unreleased 65W Processor Sets World Records Key Technical Difference: The "PRO" version includes AMD's PRO technologies for b...

The Tom's Hardware review highlights the AMD Ryzen 9 3900 as a highly efficient, unreleased 12-core, 24-thread CPU with a 65W TDP that achieves its energy efficiency by reducing base and boost clocks to 3.1 GHz and 4.3 GHz, respectively. A significant pro is its incredible performance-per-watt suitable for SFF systems, though a major con is its limited availability, as it is...Read more

H
hardwarecanucks.com
28/08/2020
The Best CPU You CAN'T Buy - Ryzen 9 3900 Performance Review

The Hardware Canucks review of the AMD Ryzen 9 3900 labels it a "hidden gem" offering exceptional 12-core, 24-thread performance within a 65W TDP. Despite lower rated clocks, it performs very close to the 3900X, making it ideal for SFF builds. Key pros include remarkable power efficiency—drawing roughly 100W less than competing Intel chips—and excellent overclocking potential via...Read more

T
tomshardware.com
12/11/2019
AMD Ryzen 9 3900 Review: a Taste of Eco Mode

The Tom's Hardware review of the 12-core AMD Ryzen 9 3900 analyzes a 65W TDP processor designed for OEMs, highlighting its role as a pre-cursor to AMD's Eco-Mode feature. The chip offers exceptional efficiency and performance-per-watt, maintaining ~91% of the 3900X’s multi-threaded performance while running roughly 20°C cooler, making it ideal for small form factor builds. However,...Read more

C
cpubenchmark.net
Ongoing
AMD Ryzen 9 PRO 3900 - CPU Benchmarks

The AMD Ryzen 9 PRO 3900 is a 12-core, 24-thread workstation processor based on the 7nm Zen 2 architecture, designed for OEM and system integrators with a 3.1 GHz base clock and 64 MB L3 cache. A key advantage is its exceptional performance-per-watt, operating at a 65W TDP while offering roughly 90% of the performance of the 105W Ryzen 9 3900X, making it ideal for efficient content...Read more

P
planet3dnow.de
04/10/2019
AMD Ryzen 9 3900 Review: 12-Core CPU with 65W TDP Set for Launch

The Planet 3DNow! review identifies the 12-core AMD Ryzen 9 3900 as a highly efficient 65W TDP processor, delivering near 3900X multi-threaded performance with significantly lower power consumption and thermal output. Its main advantages include suitability for small form factor systems and full overclocking capability via PBO to close the performance gap with higher-TDP models,...Read more

(Translated)Show original
T
tomshardware.fr
04/10/2019
AMD: Ryzen 9 3900 test – a 65W TDP chip that hits 160W at full load

The AMD Ryzen 9 3900 is a 12-core, 24-thread, 65W TDP processor designed for OEM systems that, despite its efficiency focus, can reach 160W under heavy loads, maintaining 3.95–4.05 GHz. As a 65W chip with a 3.1 GHz base and 4.3 GHz boost, it provides massive multi-core performance for small form factor (SFF) builds, yet it trails the 3900X in lightly-threaded, stock gaming...Read more

(Translated)Show original
T
tomshw.it
04/10/2019
AMD Ryzen 9 3900 Preview: A World Record-Breaking CPU

The Tom's Hardware review highlights the 12-core/24-thread AMD Ryzen 9 3900 as a highly efficient, 65W "beast" capable of setting world records, including a 4,319-point Cinebench R15 score at 5.5 GHz under sub-zero cooling. Despite its lower stock clocks (3.1 GHz base), the chip boasts exceptional overclocking headroom, with its "cherry silicon" nearly matching the 3900X when power...Read more

(Translated)Show original

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