AMD Ryzen Threadripper Pro 9955WX
AMD's Zen 5 entry into the Threadripper PRO 9000 series on sTR5, bringing the modern workstation platform to a 16-core configuration for professionals who need more than desktop.
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Why we rate it
- Zen 5 on the sTR5 workstation platform
- Workstation platform features at lower core count
- Compatible with 9995WX boards
- Zen 5 IPC for demanding single-threaded tasks
- Platform cost far exceeds desktop
- Desktop 9950X likely faster per-core
Where the AMD Ryzen Threadripper Pro 9955WX wins and loses
Specifications
General info
Cores and threads
Watch it in action
Is the AMD Ryzen Threadripper Pro 9955WX right for you?
If ECC memory, extra PCIe lanes, or workstation platform software certification are requirements, but your workloads don't justify 64 or 96 cores, the 9955WX is the entry point to the current Threadripper PRO 9000 platform.
If you don't need ECC memory or extra PCIe lanes, the Ryzen 9 9950X handles 16-core workloads at dramatically lower cost with potentially better per-core performance.
Before you buy
Only if you have specific workstation platform requirements: ECC memory for data integrity, more PCIe lanes for multiple GPUs or NVMe arrays, or software certifications that require a workstation-validated platform. For raw 16-core performance, the desktop 9950X is typically cheaper and similar or faster.
Registered ECC DDR5 (R-DIMM), the server-grade memory standard. This is significantly more expensive than consumer DDR5 and must be purchased specifically for workstation use.
Yes. Both use the sTR5 socket and are compatible with WRX90 and TRX50 workstation boards. This means you can upgrade from a 9955WX to a 9995WX later without changing boards.
Yes, but it would be a poor use of an expensive workstation platform. A desktop Ryzen chip delivers better gaming performance at a dramatically lower total system cost.
Alternatives & similar cpus
