AMD · Threadripper

Ryzen Threadripper 3960X

Released November 2019

A 24-core Zen 2 desktop processor for sTRX4, with quad-channel DDR4 memory, 128 MB L3 cache and PCIe 4.0.

Model history · 2 models, 2018–2019

2018Ryzen Threadripper 2970WX Compare
2019Ryzen Threadripper 3960X

Cores: 24/48
Boost: 4.5 GHz
L3: 128 MB
Power: 280 W
Socket: sTRX4

Unlocked

What reviewers say

Reviewers found strong rendering and workstation performance with much better single-threaded behaviour than earlier Threadrippers. PCIe 4.0 and extensive expansion bandwidth were useful for demanding workstations, while the 24-core model often offered better value than the 3970X when software could not use all its cores. The expensive new platform and substantial cooling requirements remained considerations.

From techspot.com and servethehome.com

Specifications

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Cores and clocks

Cores: 24
Threads: 48
Base clock: 3.8 GHz
Boost clock: 4.5 GHz
L3 cache: 128 MB
Cores: Castle Peak; Zen 2 architecture; boxed product ID 100-100000010WOF. Requires sTRX4/TRX40, incompatible with sTR4/X399 motherboards. AMD confirms worldwide first availability on 25 November 2019, after its 7 November announcement.
Clocks: Maximum boost up to 4.5 GHz; unlocked for overclocking
Cache: L1 1536 KB; L2 12 MB; the advertised 140 MB combined cache includes L2 and L3

Graphics and AI

Built-in graphics: No
Graphics: A separate graphics card is required

Platform

Socket: sTRX4
Base power: 280 W
Unlocked: Yes
Cooler in the box: No
Memory support: DDR4; four channels; up to 3200 MT/s
PCIe: PCIe 4.0; AMD publishes 88 lanes across the processor and TRX40 chipset, with 72 usable
Process: CPU cores: TSMC 7 nm FinFET
Cooler: No cooler included; maximum operating temperature 95°C

Pros and cons

Pros

Twenty-four cores and forty-eight threads
Quad-channel DDR4 memory
PCIe 4.0 expansion support

Cons

280 W TDP
Requires a new TRX40 motherboard
Cooler sold separately

Closest rivals

Model	Cores	Boost	L3	Power	Socket	Released
AMDRyzen Threadripper 2970WX	24/48	4.2 GHz	64 MB	250 W	sTR4	Oct 2018
AMDRyzen Threadripper 3970X	32/64	4.5 GHz	128 MB	280 W	sTRX4	Nov 2019
IntelCore i9-10980XE	18/36	4.8 GHz	24.75 MB	165 W	LGA2066	Nov 2019

Previous model: Ryzen Threadripper 2970WX. Newer model: Ryzen Threadripper 7960X.

Sources

Photo: AMD official isolated third-generation Threadripper bare processor photograph published on the exact ryzen threadripper 3960x archived maker page. Archived official original; shared family render, not individually SKU-marked. Native alpha and original metallic heatspreader, substrate/pins, printed packaging and publisher highlights preserved.

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