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AMD Ryzen Threadripper PRO 9965WX Processor, 24 Cores / 48 Threads, up to 5.4 GHz, 128MB L3, sTR5, 350W, Tray

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AMD
AMD Threadripper PRO 9965WX 24-Core sTR5 CPU (Tray)
AMD Ryzen Threadripper PRO 9965WX Processor, 24 Cores / 48 Threads, up to 5.4 GHz, 128MB L3, sTR5, 350W, Tray
€3720.04 inc. VAT
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100-000000724
€3,126.08 €3,473.42
€3,720.04 inc. VAT
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CPU Type
AMD Ryzen Threadripper
Product Code
04:558601
Manufacturer
AMD

Quick Specs

Type
Workstation CPU · Zen 5 · Tray
Socket / Platform
sTR5 · WRX90 / TRX50
Cores / Clock
24C/48T · 4.2–5.4 GHz
Memory / PCIe
8-ch DDR5-6400 RDIMM · 128× PCIe 5.0
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AMD Ryzen Threadripper PRO 9965WX — 24-Core Zen 5 Workstation Processor (sTR5, Tray)

24 Cores / 48 ThreadsUp to 5.4 GHz128MB L3sTR5 · 350W

The AMD Ryzen Threadripper PRO 9965WX is a 24-core, 48-thread Zen 5 workstation processor for the sTR5 socket, with a 4.2 GHz base clock, up to 5.4 GHz boost and 128MB of L3 cache, built for engineers, 3D artists, video editors and developers who need high clock speeds together with workstation-class memory and PCIe bandwidth.

It belongs to the Threadripper PRO 9000 WX-Series. On a WRX90 motherboard it runs eight channels of DDR5 RDIMM at up to 6400 MT/s (up to 2TB) and exposes up to 128 PCIe 5.0 lanes for multiple GPUs, NVMe arrays and high-speed network cards. This is the tray version (part number 100-000000724): the processor itself, intended for system builders and integrators.

Before you order: This CPU needs an sTR5 motherboard (WRX90 or TRX50 chipset), registered ECC DDR5 RDIMM memory and a separate cooler rated for 350W. Ordinary desktop DDR5 UDIMM memory and AM5 boards will not work. If you already own a WRX90/TRX50 board from the 7000 WX generation, confirm with the board maker that its BIOS supports the 9000 WX-Series before you install it.

What's in the Box

  • 1 × AMD Ryzen Threadripper PRO 9965WX processor (tray packaging)
  • No cooler — AMD lists the thermal solution as not included
  • No retail box, no AMD case badge and no printed documentation (tray part)

What It Means in Practice

  • 24 Zen 5 cores at up to 5.4 GHz suit applications that mix lightly-threaded work (CAD modelling, viewport work, compiling single files) with heavily threaded jobs (rendering, simulation, encoding).
  • On WRX90 you get the full platform: 8 memory channels, up to 2TB of RAM and 128 PCIe 5.0 lanes — enough for several graphics cards plus NVMe storage at full bandwidth.
  • On TRX50 the same CPU runs 4 memory channels (up to 1TB) and up to 80 PCIe 5.0 lanes — a lower-cost board choice if you do not need the full I/O.
  • 350W TDP means a workstation-grade cooler (large air cooler or AIO with sTR5 mounting) and a power supply sized for the CPU plus your GPUs.

What Will Not Work

  • AM5, AM4, sTRX4, sWRX8 or EPYC (SP3/SP5/SP6) motherboards — the socket is sTR5 only.
  • Desktop DDR5 UDIMM memory — WRX90 and TRX50 platforms need DDR5 RDIMM (registered ECC).
  • Running without a graphics card — there is no integrated graphics; a discrete GPU is required.
  • Running without a cooler — none is included, and a cooler designed for AM5 will not mount on sTR5.
  • Older WRX90/TRX50 boards without a BIOS update for the 9000 WX-Series.

Key Features

 
Zen 5 at up to 5.4 GHz
High single-core boost keeps interactive applications responsive while 24 cores handle rendering and compile jobs.
 
8-channel DDR5-6400
On WRX90: eight RDIMM channels at up to 6400 MT/s and up to 2TB, with ECC enabled by default.
 
128 lanes of PCIe 5.0
Room for multiple GPUs, NVMe RAID and 100GbE-class network cards without lane sharing.
 
AMD PRO technologies
Enterprise security and manageability features for fleet-managed workstations (platform dependent).

Technical Specifications

Identification
Part Number 100-000000724 (tray)
Boxed version part number 100-100000724WOF
Brand AMD
Series Ryzen Threadripper PRO 9000 WX-Series
Processor
Cores / Threads 24 / 48 (SMT)
Base Clock 4.2 GHz
Max Boost Clock Up to 5.4 GHz
L1 Cache 1920 KB
L2 Cache 24 MB
L3 Cache 128 MB
Architecture Zen 5
Process TSMC 4nm FinFET (CPU dies) · TSMC 6nm FinFET (I/O die)
Default TDP 350W
Max Operating Temperature (Tjmax) 95°C
Integrated Graphics None — discrete graphics card required
Platform
Socket sTR5
Supported Chipsets WRX90 · TRX50 · Pro 695
Memory Type DDR5 RDIMM, ECC (enabled by default)
Memory Channels 8 (WRX90) · 4 (TRX50)
Memory Speed Up to 6400 MT/s
Max Memory Up to 2TB (WRX90) · up to 1TB (TRX50)
PCIe Version PCIe 5.0
PCIe Lanes (WRX90) 148 total · 144 usable · up to 128 PCIe 5.0
PCIe Lanes (TRX50) 92 total · 88 usable · up to 80 PCIe 5.0
AMD PRO Technologies Yes
Other
Thermal Solution Not included
OS Support Windows 11 64-bit · Windows 10 64-bit · RHEL x86 64-bit · Ubuntu x86 64-bit
Launch Date 23 July 2025
Warranty
Warranty 1-Year Warranty (Singular)
Manufacturer Term The manufacturer does not publish a warranty term for this tray part — claims handled through Singular

Frequently Asked Questions

What is the difference between this tray version and the boxed 100-100000724WOF?
The processor is the same. Tray parts ship as the bare CPU for system builders; the boxed version comes in AMD retail packaging. Neither includes a cooler.
Can I use it on a TRX50 board instead of WRX90?
Yes. AMD lists TRX50 as supported, but the board then provides 4 memory channels (up to 1TB) and fewer PCIe lanes than WRX90.
Which memory do I need?
Registered ECC DDR5 (RDIMM). For full bandwidth on WRX90, populate all eight channels with identical modules.
Is 24 cores the right size?
Choose the 9965WX when clock speed and platform I/O matter more than core count. For long multi-threaded renders or simulations, higher-core Threadripper PRO models finish faster.
Singular Expert Insight · Buyer's Guide
The 9965WX is the sweet spot for workstations that are used interactively all day: high boost clocks for CAD and content apps, plus the WRX90 platform for multi-GPU and large memory. Budget the full platform — sTR5 board, a matched set of DDR5 RDIMM memory, a 350W-class sTR5 cooler and a suitable PSU — not just the CPU.
✓ Buy it if you are building or upgrading a WRX90/TRX50 workstation and need high clocks with eight-channel memory and lots of PCIe 5.0 lanes.
✕ Skip it if you have an AM5 desktop or want to reuse desktop UDIMM memory — a Ryzen 9 on AM5 is the simpler, lower-cost route.
→ Also consider Ryzen Threadripper PRO models with more cores on the same sTR5 platform for heavily multi-threaded rendering and simulation.
Not sure your board or memory is compatible? Send us the motherboard model and BIOS version and we will check support for the 9000 WX-Series before you order.

Features - AMD - 100-000000724

CPU Socket
  • Socket sTR5
More Details
Product Code
04:558601
EAN Code
-
Manufacturer
AMD
Technical specifications
CPU Type
  • AMD Ryzen Threadripper
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