AMD Ryzen 9 3900XT
- Brand:
- AMD
- Form Factor:
- Desktop
- Core/Thread Count:
- 12C/24T
- TDP:
- 105W
- iGPU:
- Discrete Graphics Card Required
- CPU Series:
- Ryzen 3000 Series
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Manufacturer: AMD Last updated:
AMD Ryzen 9 3900XT Review
AMD Ryzen 9 3900XT desktop processor, 12C/24T 3.8 GHz base clock boosting up to 4.7 ghz, 105W TDP.
The AMD Ryzen 9 3900XT is part of AMD's Ryzen 3000 Series lineup (Matisse), built for desktop systems. It offers 12C/24T with a 3.8 GHz base clock boosting up to 4.7 ghz, backed by 64 MB of L3 cache, within a 105W TDP, with Discrete Graphics Card Required integrated graphics.
Performance and Architecture
With 12C/24T, the AMD Ryzen 9 3900XT runs at 3.8 GHz base clock boosting up to 4.7 ghz. Cache totals 6 MB L2 and 64 MB L3. Its Discrete Graphics Card Required integrated graphics handle display output and light graphics work without a discrete GPU.
Platform and Compatibility
It supports DDR4 memory (Up to 3200 MT/s). The multiplier is unlocked for overclocking on a compatible motherboard and cooler.
Comparison to Alternatives
Within the Ryzen 3000 Series lineup in this catalog, the AMD Ryzen 9 3900XT is positioned by its core/thread count and TDP relative to other Ryzen parts. Buyers comparing options in this class should weigh core count and clock speed against platform cost and intended workload.
Specifications
Identity
| Product Line | Ryzen 9 |
|---|---|
| Model Number | 3900XT |
| Codename | Matisse |
| Release Year | 2020 |
Segment and platform
| Market Segment | Desktop |
|---|---|
| Socket | AM4 |
| Socket Status | End of Life |
| Process Node | 7 nm |
Core configuration
| Total Cores | 12 |
|---|---|
| Performance Cores | 12 |
| Efficiency Cores | 0 |
| Total Threads | 24 |
| SMT Enabled | Yes |
Clock speeds
| P-Core Base Clock | 3.8 GHz |
|---|---|
| P-Core Boost Clock | 4.7 GHz |
| Unlocked Multiplier | Yes |
Cache
| L2 Cache | 6 MB |
|---|---|
| L3 Cache | 64 MB |
Power and thermal
| Base Power | 105 W |
|---|---|
| Max Turbo Power | 142 W |
Memory
| Memory Type | DDR4 |
|---|---|
| Max Memory Speed | 3200 MT/s |
| Memory Channels | 2 |
| Max Memory Capacity | 128 GB |
| ECC Support | No |
Graphics and AI
| Integrated Graphics | No |
|---|
Expansion
| PCIe Generation | PCIe 4.0 |
|---|---|
| PCIe Generation | 4 |
| PCIe Lanes | 20 |
Commercial
| Launch MSRP | 499 USD |
|---|---|
| Retail Availability | Retail |
| Form Factor | Desktops, Boxed Processor |
|---|---|
| TDP | 105 W |
| iGPU | Discrete Graphics Card Required |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Mainstream desktop builds
- Everyday productivity
- Value-focused upgrades
Not for
- Extreme overclocking (unless K/X-series)
- Workstation-class multi-threaded workloads
- SFF builds without adequate cooling
FAQs
What are the key specifications of the AMD Ryzen 9 3900XT?
The AMD Ryzen 9 3900XT is a processor from AMD. Key specs: Cores 12, Threads 24, Base Clock 3.8 GHz, Boost Clock Up to 4.7 GHz, L2 Cache 6.
Who is the AMD Ryzen 9 3900XT best suited to?
It suits mainstream desktop builds, everyday productivity, value-focused upgrades.
What are the drawbacks of the AMD Ryzen 9 3900XT?
It is a poor fit for extreme overclocking (unless k/x-series), workstation-class multi-threaded workloads, sff builds without adequate cooling.