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Deal.ai › AMD › CPUs
AMD
AMD 3955WX Threadripper Pro Desktop Processor

AMD 3955WX Threadripper Pro Desktop Processor

Best price now

$1,015.37at NeweggChecked 23 h ago

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Price facts

  • Last seen at $1,015.37 at Newegg on Nov 10.

Our take on the AMD 3955WX Threadripper Pro Desktop Processor

The Threadripper Pro 3955WX is a 16-core, 32-thread workstation CPU on the sWRX8 platform, built on Zen 2 with a 3.9 GHz base and 4.3 GHz boost. Its standout is the platform: 128 PCIe 4.0 lanes and eight-channel memory, which no consumer chip offers. It suits workstation builders running CAD, simulation or rendering that needs lanes and memory bandwidth, not gamers. Against the 32-core 3975WX it trades half the cores for a lower tier, and against consumer Ryzen it costs platform flexibility and clock speed. Reviewers rate its multi-threaded throughput but note the high 280 W draw and the cost of sWRX8 boards.

Best forWorkstation builders needing many PCIe lanesCAD and 3D rendering workMulti-threaded simulation and encodingUsers running large memory configurations
Pros
  • 16 cores and 32 threads handle heavy multi-threaded work
  • 128 PCIe 4.0 lanes for GPUs, storage and capture cards
  • Eight-channel memory support for high bandwidth
  • 64 MB L3 cache
  • Unlocked-free but reliable sustained clocks under load
Cons
  • 280 W TDP demands strong cooling and a hefty VRM
  • No ECC memory support on this part
  • No integrated graphics, so a discrete GPU is required
  • sWRX8 boards and coolers are expensive and limited
  • Zen 2 architecture is older than current Ryzen generations

AMD 3955WX Threadripper Pro Desktop Processor prices at every store

  • NeweggNew

    In stock

    $1,015.37Free shippingChecked 23 h ago
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Store links may earn us a commission. Price via Klarna.

AMD 3955WX Threadripper Pro Desktop Processor price history

Lowest price we've seen: $1,015.37 on Nov 10 at Newegg. Tracked across 1 store since Nov 10.

What reviewers say

Owners and reviewers treat the 3955WX as a solid mid-tier Threadripper Pro: strong multi-core throughput and huge lane counts, but hot and platform-expensive. Most say it makes sense only when the workstation platform is the point.

What people mention
  • PerformancePraisedReviewers say the 16 cores deliver strong sustained multi-threaded throughput for rendering and simulation.
  • Power drawCriticisedOwners report high heat and power use, needing serious cooling and a robust board.
  • Platform costCriticisedBuyers note sWRX8 motherboards and coolers add significant cost over consumer platforms.
  • PCIe lanesPraisedUsers value the 128 PCIe 4.0 lanes for multiple GPUs and fast storage arrays.
  • ECC supportCriticisedCommenters flag the lack of ECC memory support as a gap for a workstation chip.
  • Single-thread speedMixedReviewers find single-core performance adequate but behind newer Ryzen generations.

Specifications

Lithography
7 nmSource
Overclocking Support
NoSource
L2 Cache (MB)
8.0Source
Integrated GPU
NoSource

Questions and answers

Is the 3955WX worth it over a consumer Ryzen?
Only if you need many PCIe lanes or eight-channel memory. For plain gaming or light editing, a consumer Ryzen is faster per core and far cheaper to build around.
How does it compare with the 3975WX?
The 3975WX doubles the cores to 32 and raises multi-threaded throughput substantially. The 3955WX is the lower tier for buyers who don't need that much parallel compute.
Does it support ECC memory?
No. This part is listed without ECC support, so plan on non-ECC registered memory for the sWRX8 platform.
What cooler and motherboard do I need?
You need an sWRX8 motherboard and a cooler rated for the 280 W TDP, typically a large Threadripper-specific air or AIO unit. The chip ships without a fan.
Does it have integrated graphics?
No. You must add a discrete GPU for display output.
Is it overclockable?
No. Overclocking support is not enabled on this model; it runs at its rated base and Precision Boost clocks.
Where is the AMD 3955WX Threadripper Pro Desktop Processor cheapest?
At Newegg, for $1,015.37, as of our latest check.

Stores we've priced the AMD 3955WX Threadripper Pro Desktop Processor at

  • Newegg deals and prices

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AMD Series
Ryzen Threadripper ProSource
Dynamic Frequency Scaling
NoSource
AMD Model
3955WXSource
Threads
32Source
L3 Cache (MB)
64Source
Cores
16Source
Clock Speed (GHz)
3.9Source
TDP (W)
280Source
Generation
AMD Zen 2 (2019)Source
Fan
NoSource
Release Year
2020Source
Turbo/Precision Boost
YesSource
ECC Memory Support
NoSource
Boxed
YesSource
Virtualization
NoSource
Socket
AMD Socket sWRX8Source
Clock Speed (max) (GHz)
4.3Source