AMD Ryzen Threadripper PRO 9955WX 4.5 GHz 16-Core sTR5 Processor
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AMD Ryzen Threadripper PRO 9955WX 4.5 GHz 16-Core sTR5 Processor
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Product Details
AMD Ryzen™ Threadripper™ PRO 9955WX 4.5 GHz 16-Core sTR5 Processor
Workstation-class compute density and platform bandwidth for high-throughput creation, simulation, and enterprise deployment
Built on AMD’s 4nm Zen 5 architecture, the Threadripper PRO 9955WX delivers 16 cores / 32 threads, a 4.5 GHz base clock, up to 5.4 GHz boost, and 64MB of L3 cache—paired with octa-channel DDR5 ECC support and 128 usable PCIe 5.0 lanes to remove I/O bottlenecks across GPU, storage, and accelerator-heavy workflows.
Workstation Throughput Without the Platform Tax
The Threadripper PRO 9955WX is engineered for sustained, multi-threaded performance and platform scalability. It combines high-frequency Zen 5 cores with massive memory bandwidth (8-channel DDR5 ECC) and next-gen expansion (PCIe 5.0) to accelerate rendering, content pipelines, virtualization, and data-intensive compute where traditional desktop platforms saturate on memory and I/O.
Platform capabilities (memory capacity, PCIe slot count, storage topology) vary by sTR5 workstation motherboard and chassis configuration.
Platform Advantages
Zen 5 Core Architecture on 4nm
High-efficiency Zen 5 cores deliver strong single-thread responsiveness and multi-thread scalability for modern creative tools, compilation pipelines, and compute-heavy workstation workloads.
Octa-Channel DDR5 ECC for Bandwidth-First Workloads
Feed CPU cores and accelerators with high-throughput memory and support ECC for data integrity. Ideal for simulation, VFX, large scene assembly, heavy multitasking, and virtualized workstation stacks.
128 Usable PCIe 5.0 Lanes for I/O Scale
Build GPU-dense workstations, high-speed NVMe storage fabrics, and advanced capture/IO without compromising link widths. Designed to reduce contention across multi-device, multi-bus deployments.
Enterprise-Grade AMD PRO Security & Manageability
Built for professional fleets with security and lifecycle management capabilities. Memory encryption helps protect data at rest in system memory, while a dedicated security processor supports code validation before execution.
Key Features
Workstation CPU engineered for sustained performance, massive memory bandwidth, and PCIe 5.0 expansion
16 Cores / 32 Threads
Parallel execution for rendering, encoding, simulation, and compilation pipelines.
4.5 GHz Base, Up to 5.4 GHz Boost
Balanced throughput and responsiveness for mixed single/multi-thread workloads.
64MB L3 Cache
Reduced memory round-trips for large assets, complex scenes, and compute kernels.
8-Channel DDR5 ECC Support
Bandwidth-first design with ECC support for data integrity in professional environments.
128 PCIe 5.0 Lanes
Scale storage and accelerators without sacrificing link widths or introducing bottlenecks.
Deployment Notes
No integrated graphics and no cooler included—plan for a dedicated GPU and workstation-class thermal solution.
Technical Specifications
Compute
Memory & I/O
Power & Thermals
Security & Instruction Set
Identifiers
This processor does not include integrated graphics; a discrete GPU is required. A compatible sTR5 motherboard and workstation-grade cooling solution are required (cooler not included).
What’s in the Box
AMD Ryzen™ Threadripper™ PRO 9955WX Processor
16-core workstation CPU for sTR5 platforms
Limited 3-Year Manufacturer Warranty
Manufacturer-backed coverage for professional deployments
Not Included
CPU cooler (required) • Dedicated GPU (required) • Motherboard (required)
Included in the Box