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AMD Ryzen 9 3900X vs AMD Ryzen 9 5900X: Comparison
AMD Ryzen 9 3900X and AMD Ryzen 9 5900X separate most on pcie lanes: AMD Ryzen 9 3900X at 20, AMD Ryzen 9 5900X at 24, 17% in favour of AMD Ryzen 9 5900X. They match on 24 other specifications, including form factor, core/thread count and tdp. In Blender Cycles (CPU) the AMD Ryzen 9 5900X scores 306 against 268 for the AMD Ryzen 9 3900X, a lead of 12%.
Specs
| Specification |  |  |
|---|---|---|
| Brand | AMD | AMD |
| Product Line | Ryzen 9 | Ryzen |
| Form Factor | Desktop | Desktop |
| Model Number | 3900X | 5900X |
| Codename | Matisse | Vermeer |
| Core/Thread Count | 12 Core / 24 Thread | 12 Core / 24 Thread |
| Release Year | 2019 | 2020 |
| TDP | 105 W | 105 W |
| Market Segment | Desktop | Desktop |
| Cache | 64MB L3 + 6MB L2 + 768KB L1 | 64MB L3 + 6MB L2 + 768KB L1 |
| Socket | AM4 | AM4 |
| Boost/Base Clock | 4.6 GHz / 3.8 GHz | 4.8 GHz / 3.7 GHz |
| Socket Status | End of Life | End of Life |
| Process Node | 7 nm | 7 nm |
| Performance Cores | 12 | 12 |
| Efficiency Cores | 0 | 0 |
| SMT Enabled | true | true |
| P-Core Base Clock | 3.8 | 3.7 |
| P-Core Boost Clock | 4.6 | 4.8 |
| Unlocked Multiplier | true | true |
| L2 Cache | 6 MB | 6 MB |
| L3 Cache | 64 MB | 64 MB |
| Base Power | 105 W | 105 W |
| Max Turbo Power | 142 | 142 |
| Memory Type | DDR4 | DDR4 |
| Max Memory Speed | 3200 | 3200 |
| Memory Channels | 2 | 2 |
| Max Memory Capacity | 128 | 128 |
| ECC Support | false | true |
| Integrated Graphics | No | No |
| PCIe Generation | 4 | PCIe 4.0 |
| PCIe Lanes | 20-17% | 24 |
| Launch MSRP | 499 | 549 |
| Retail Availability | Retail | Boxed Retail |
| Series | Ryzen 9 | Ryzen 9 |
| CPU Process Node | 7 Nanometers (TSMC) | 7 Nanometers (TSMC) |
| Architecture | Zen 2, Ryzen 3000 Series "Matisse" | Zen 3, Ryzen 5000 Series |
| Cores | 12 | 12 |
| Threads | 24 | 24 |
Benchmarks
Measured results, not specifications. Percentages are the gap to the leading product in each test.
Blender Cycles (CPU)
Blender 4.5, Blender Open Data (CC0). Median of monster + junkshop + classroom, combined samples/min.
Blender renders 3D scenes by tracing light through them, which loads every core at once. The score measures sustained multi-core throughput, so a chip that wins here can still lose at gaming, where one or two fast cores matter more. Figures come from Blender's Open Data project, which places no restriction on reuse, and we publish the median of every submission for that chip on the same Blender version.