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AMD Threadripper Pro 9965WX processor
AMD

AMD Threadripper PRO 9965WX

Expert rating8.9 / 10

View on amd.com
Brand:
AMD
Form Factor:
Server & Enthusiast
CPU Socket:
sTR5
Core/Thread Count:
24C/48T
TDP:
350W
iGPU:
None
CPU Series:
Threadripper PRO

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Manufacturer: AMD Last updated: 2026-09-11

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AMD Threadripper PRO 9965WX Review

AMD Threadripper PRO 9965WX 24-core 48-thread sTR5 certified workstation processor, 4.3GHz base / 5.4GHz boost, 350W TDP, 152MB L3 cache, Zen 5 "Shimada Peak"

The Threadripper PRO 9965WX is a balanced certified workstation chip that trades a bit of core count for higher clocks, landing it well for mixed single- and multi-threaded professional workloads. Built on Zen 5 "Shimada Peak" and rated for 350W, it pairs 24 cores and 48 threads with a 4.3GHz base clock that boosts up to 5.4GHz, backed by 152MB of L3 cache on the sTR5 platform.

Core Count and Clock Behavior

With 24 physical cores and 48 threads, the Threadripper PRO 9965WX is built for workloads that actually scale across many cores at once: video encoding, 3D rendering in Blender or V-Ray, large compile jobs, and scientific simulation. Base clock sits at 4.3GHz with single-core boost up to 5.4GHz, so lightly threaded tasks still perform well even though the chip's real strength is aggregate throughput. The 152MB L3 cache keeps large working sets fed without constantly hitting main memory, which matters for rendering and simulation datasets that don't fit in L2.

Platform and Cooling Requirements

The Threadripper PRO 9965WX runs on the workstation-class sWRX8/sTR5 platform with 8-channel ECC memory support and up to 128 PCIe 5.0 lanes. That means ECC registered memory across eight channels for maximum capacity and bandwidth in multi-terabyte datasets. At a 350W TDP, this is not a chip for a compact case: it needs a full tower with strong airflow and typically a 280mm+ liquid cooler or equivalent air cooler rated for HEDT-class heat output.

Comparison to Alternatives

Compared to the higher-tier Threadripper PRO 9975WX and 9985WX in this catalog, the Threadripper PRO 9965WX costs less and runs cooler for a given cooling budget, at the expense of raw core count for the most parallel workloads. Against a mainstream Ryzen 9 9900X or 9950X, the Threadripper PRO 9965WX adds ECC memory support, far more PCIe lanes, and ISV workstation certification, which matters for CAD and engineering software but is wasted on gaming or general desktop use. It also undercuts equivalent Intel Xeon W-series parts in the catalog on core count per dollar.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8.9 / 10

The Threadripper PRO 9965WX is a well-balanced high-core-count chip that handles both single-threaded and parallel workloads without the premium of the top-tier models.

Best for

  • Content creators mixing single- and multi-threaded work
  • Software developers with large compile jobs
  • Workstation buyers wanting headroom over mainstream desktop

Not for

  • Gaming-focused builds
  • Users on air cooling under 240mm
  • Cost-sensitive builds

Specifications

What these specs mean

Identity

Release Year2025

Cores and threads

Core Count24 cores
Thread Count48 threads
Core ArchitectureZen 5 "Shimada Peak"

Clocks

Base Clock4.3 GHz
Boost Clock5.4 GHz

Cache

L3 Cache152 MB

Platform

SocketsTR5

Memory

Memory Channels8 channels
ECC SupportYes

Power and thermals

TDP350 W

FAQs

What are the key specifications of the AMD Threadripper PRO 9965WX?

The AMD Threadripper PRO 9965WX has 24 cores and 48 threads, a 4.3 GHz base and 5.4 GHz boost clock, 152 MB of L3 cache and a 350 W TDP. Socket: sTR5.

Will the AMD Threadripper PRO 9965WX work with my current setup?

The AMD Threadripper PRO 9965WX lists Socket is sTR5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the AMD Threadripper PRO 9965WX best suited to?

Best suited to: Content creators mixing single- and multi-threaded work; Software developers with large compile jobs; Workstation buyers wanting headroom over mainstream desktop.

What are the drawbacks of the AMD Threadripper PRO 9965WX?

Not the best fit for: Gaming-focused builds; Users on air cooling under 240mm; Cost-sensitive builds.

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