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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: 31,232
  • 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
No image

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.
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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 (6321 vs 2783). The average processor scores 2783 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 (6321 vs 2783). The average processor scores 2783 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 (31232 vs 10532.5). The average processor scores 10532.5 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 (31232 vs 10532.5). The average processor scores 10532.5 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
  • Advanced security extensions
    AMD Ryzen 9 Pro 3900 provides more advanced security extensions than the average processor (AES-NI, SHA, Memory Guard, Secure Boot, Shadow Stack, SME, TSME, SEV vs AES-NI, NX bit, Secure Processor).
  • 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 (6321 vs 2783). The average processor scores 2783 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 (31232 vs 10532.5). The average processor scores 10532.5 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 (9122 vs 4793). The average processor scores 4793 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 (1640 vs 1471). The average processor scores 1471 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 vs PTT 2
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
Summary of the review
AMD Ryzen 9 3900 Tested: Unreleased 65W Processor Sets World Records Key Technical Difference: The "PRO" version includes AMD's PRO technologies for b...
H
hardwarecanucks.com
28/08/2020
Summary of the review
The Best CPU You CAN'T Buy - Ryzen 9 3900 Performance Review
T
tomshardware.com
12/11/2019
Summary of the review
AMD Ryzen 9 3900 Review: a Taste of Eco Mode
C
cpubenchmark.net
Ongoing
Summary of the review
AMD Ryzen 9 PRO 3900 - CPU Benchmarks
P
planet3dnow.de
04/10/2019
Summary of the review
AMD Ryzen 9 3900 Review: 12-Core CPU with 65W TDP Set for Launch
(Translated)Show original
T
tomshardware.fr
04/10/2019
Summary of the review
AMD: Ryzen 9 3900 test – a 65W TDP chip that hits 160W at full load
(Translated)Show original
T
tomshw.it
04/10/2019
Summary of the review
AMD Ryzen 9 3900 Preview: A World Record-Breaking CPU
(Translated)Show original

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