AMD Ryzen Threadripper PRO 3955WX vs AMD Ryzen Threadripper PRO 3945WX: comparison
Comparison of AMD Ryzen Threadripper PRO 3955WX and AMD Ryzen Threadripper PRO 3945WX: key differences and a full specification table.
Key differences
AMD Ryzen Threadripper PRO 3955WX has more cores (16 vs 12) and more threads (32 vs 24).
At the same time, AMD Ryzen Threadripper PRO 3945WX has a higher base clock (4 GHz vs 3.9 GHz).
Both processors match on: maximum clock (4.3 GHz), L3 cache (64 MB), TDP (280 W), process node (7 nm), memory channels (8), PCIe version (4).
These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.
Key specifications
| Parameter | AMD Ryzen Threadripper PRO 3955WX | AMD Ryzen Threadripper PRO 3945WX |
|---|---|---|
| Cores / threads | 16 / 32 | 12 / 24 |
| Max boost clock | 4.3 GHz | 4.3 GHz |
| L3 cache | 64 MB | 64 MB |
| TDP | 280 W | 280 W |
| Process | 7 nm | 7 nm |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | AMD Ryzen Threadripper PRO 3955WX | AMD Ryzen Threadripper PRO 3945WX |
|---|---|---|
| General | ||
| Codename | Castle Peak | Castle Peak |
| Segment | Desktop | Desktop |
| Product line | AMD Ryzen Threadripper PRO Processors | AMD Ryzen Threadripper PRO Processors |
| Product family | AMD Ryzen PRO Processors | AMD Ryzen PRO Processors |
| Process | 7 nm | 7 nm |
| Launch date | 07/14/2020 | 07/14/2020 |
| Unlocked for overclocking | No | No |
| Operating system support | Windows 10 - 64-Bit Edition | Windows 10 - 64-Bit Edition |
| CPU | ||
| Cores | 16 | 12 |
| Threads | 32 | 24 |
| Base clock | 3.9 GHz | 4 GHz |
| Max boost clock | 4.3 GHz | 4.3 GHz |
| L1 cache | 1 MB | 768 KB |
| L2 cache | 8 MB | 6 MB |
| L3 cache | 64 MB | 64 MB |
| TDP | 280 W | 280 W |
| Memory | ||
| Memory types | DDR4 | DDR4 |
| Memory channels | 8 | 8 |
| Max memory speed | 3.2 GHz | 3.2 GHz |
| Graphics | ||
| Has integrated graphics | No | No |
| I/O and interfaces | ||
| PCI Express revision | 4 | 4 |
| Package and thermal | ||
| Sockets supported | sWRX8 | — |
| Max CPU configuration | 1 | 1 |
| TJUNCTION | 90 °C | 90 °C |
| Security and virtualization | ||
| Supported technologies | AMD "Zen" Core Architecture | AMD "Zen" Core Architecture |
| Identifiers | ||
| Product ID (OEM) | 100-000000167 | 100-000000168 |
| Product ID (Box) | 100-100000167WOF | — |