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AMD Ryzen 9 3950X vs AMD Ryzen 9 9950X3D: Comparison
AMD Ryzen 9 3950X and AMD Ryzen 9 9950X3D separate most on l2 cache: AMD Ryzen 9 3950X at 8 MB, AMD Ryzen 9 9950X3D at 16 MB, 50% in favour of AMD Ryzen 9 9950X3D. L3 Cache splits them by another 50%, again favouring AMD Ryzen 9 9950X3D. They match on 9 other specifications, including form factor, market segment and performance cores. In Blender Cycles (CPU) the AMD Ryzen 9 9950X3D scores 663 against 353 for the AMD Ryzen 9 3950X, a lead of 47%.
Specs
| Specification |  |  |
|---|---|---|
| Form Factor | Desktop | Desktop |
| Codename | Matisse | Granite Ridge |
| Release Year | 2019 | 2024 |
| TDP | 105 W | 120 W |
| Market Segment | Desktop | Desktop |
| Socket | AM4 | AM5 (LGA 1718) |
| Socket Status | End of Life | Current |
| Process Node | 7 nm | 4 nm |
| Performance Cores | 16 | 16 |
| Efficiency Cores | 0 | 0 |
| SMT Enabled | true | true |
| P-Core Base Clock | 3.5 | 4.3 |
| P-Core Boost Clock | 4.7 | 5.7 |
| Unlocked Multiplier | true | true |
| L2 Cache | 8 MB-50% | 16 MB |
| L3 Cache | 64 MB-50% | 128 MB |
| Base Power | 105 W | 170 W |
| Max Turbo Power | 142 | 230 |
| Memory Type | DDR4 | DDR5 |
| Max Memory Speed | 3200 | 5600 |
| Memory Channels | 2 | 2 |
| Max Memory Capacity | 128 | 256 |
| ECC Support | false | true |
| Integrated Graphics | No | Yes |
| PCIe Generation | 4 | PCIe 5.0 |
| PCIe Lanes | 20-17% | 24 |
| Launch MSRP | 749 | 699 |
| Retail Availability | Retail | Boxed Retail |
| Architecture | Zen 2, Ryzen 3000 Series "Matisse" | Zen 5 (9000 series) |
| Cores | 16 | 16 |
| Threads | 32 | 32 |
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.
Verdict
AMD Ryzen 9 9950X3D
9.2 / 10 Expert Rating
The AMD Ryzen 9 9950X3D is one of the best gaming CPUs available, its huge L3 cache translating directly into higher in-game frame rates.