AMD Ryzen 9 3900X 12-core AM4
The 12-core, 24-thread Ryzen 9 3900X delivers a 4.6 GHz boost and 64MB of L3 cache on the 7nm Zen 2 architecture, providing strong multi-threaded performance for its 105W TDP. Its unlocked multiplier and Socket AM4 compatibility with PCIe 4.0 offer a straightforward upgrade path and generous platform longevity. This processor is best for budget-conscious content creators and streamers who need high core counts for rendering and multitasking without moving to a more expensive HEDT platform.
Cores 12
Threads 24
Boost Clock 4600 MHz
L3 Cache 64 MB
TDP 105 W
Socket AM4
Integrated Graphics None Integrated Graphics
71 Overall Score
Price $189
Snapshot
Pros & Cons
Pros
- Strong social proof (97th percentile) 97th
- Strong feature (93rd percentile) 93rd
- Strong multi thread (88th percentile) 88th
- Strong ai (87th percentile) 87th
Cons
The proof
Performance
Specifications
Full Specifications
Processor
| Brand | AMD |
| Series | Ryzen 9 |
| Model | 3900X |
| Codename | Matisse |
| Class | desktop |
| Process | 7 |
Cores & Clocks
| Cores | 12 |
| P-cores | 12 |
| Threads | 24 |
| Base Clock | 3800 |
| Boost Clock | 4600 |
Cache
| L2 Cache | 6 |
| L3 Cache | 64 MB |
Performance
| PassMark Multi | 32484 |
| PassMark Single | 2703 |
Memory
| Memory Type | DDR4 |
| Max Speed | 3200 |
| Channels | 2 |
| Max Memory | 128 |
| ECC | No |
Platform & Power
| Socket | AM4 |
| PCIe | 4 |
| PCIe Lanes | 16 |
| TDP | 105 |
| Unlocked | Yes |
Graphics & AI
| Integrated Graphics | None Integrated Graphics |
vs Competition
| Spec | AMD Ryzen 9 3900X | Intel Core Ultra 9 285K | G.Skill Trident Z Neo | be quiet! Ryzen 3 Dark Rock Pro 5 | Dell Xeon 641329687376-cr | MSI MAG X870E Tomahawk WiFi |
|---|---|---|---|---|---|---|
| Cores | 12 | 24 | 6 | 4 | 4 | - |
| Threads | 24 | 24 | 12 | 4 | 8 | - |
| Boost Clock Mhz | 4600 | 5700 | 4200 | 3400 | 2700 | - |
| L3 Cache Mb | 64 | 36 | 32 | 8 | 12 | - |
| Tdp W | 105 | 125 | 65 | 270 | 80 | - |
| Socket | AM4 | LGA 1851 | AMD Socket AM4 | AM4 | LGA 1366 | AM5 |
| Integrated Graphics | None Integrated Graphics | Intel Graphics | - | - | - | - |
| Compare | Compare | Compare | Compare | Compare |
| Product | AI | Feature | Platform | Efficiency | Multi Thread | Social Proof | Single Thread |
|---|---|---|---|---|---|---|---|
| AMD Ryzen 9 3900X | 87.1 | 93.3 | 76.5 | 85.9 | 87.6 | 96.5 | 76.8 |
| Intel Core Ultra 9 285K Compare | 96.2 | 99.8 | 95.9 | 97 | 96.6 | 90.7 | 99.8 |
| G.Skill Trident Z Neo Compare | 72.4 | 87 | 78.2 | 82.9 | 73.4 | 1.5 | 72.3 |
| be quiet! Ryzen 3 Dark Rock Pro 5 Compare | 47.6 | 62.2 | 60.5 | 32.5 | 44.1 | 90.7 | 50.2 |
| Dell Xeon 641329687376-cr Compare | 30.4 | 41.4 | 17.5 | 36.4 | 31.6 | 10.5 | 23.8 |
| MSI MAG X870E Tomahawk WiFi Compare | 3.3 | 20.1 | 90.9 | 3.9 | 3.9 | 90.7 | 3.1 |
Price
Value & Pricing
From $189
Newegg 1 offer From $189
Price History
New Open Box / Refurbished
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
