AMD Ryzen 9 3950X vs AMD Ryzen Threadripper PRO 3955WX

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Ryzen 9 3950X compared with Ryzen Threadripper PRO 3955WX

	AMDRyzen 9 3950X	AMDRyzen Threadripper PRO 3955WX
Overview
Released
Released	November 2019	September 2020
Cores and clocks
Cores
Cores	16	16
Threads
Threads	32	32
Base clock
Base clock	3.5 GHz	3.9 GHz
Boost clock
Boost clock	4.7 GHz (better)	4.3 GHz
L3 cache
L3 cache	64 MB	64 MB
Cores
Cores	Zen 2; Matisse; sixteen cores with simultaneous multithreading. Two fully enabled eight-core CPU chiplets (PC Perspective).	Castle Peak; Zen 2. Boxed product ID 100-100000167WOF; tray ID 100-000000167. Announced 14 July 2020. Lenovo stated September 2020 availability for the first ThinkStation P620 systems, and confirmed them shipping on 14 October. Release is kept at OEM month precision; an exact first-sale day for this model is unpublished. AMD later announced March 2021 standalone retail availability for this model.
Clocks
Clocks	Unlocked for overclocking; Precision Boost 2.	Precision Boost 2; maximum boost up to 4.3 GHz. Locked for overclocking.
Cache
Cache	1024 KB L1; 8 MB L2; 64 MB L3.	L1 1024 KB; L2 8 MB; L3 64 MB
Graphics and AI
Built-in graphics
Built-in graphics	No	No
Graphics
Graphics	No integrated graphics; a separate graphics card is required.	A separate graphics card is required
Platform
Socket
Socket	AM4	sWRX8
Base power
Base power	105 W	280 W
Unlocked
Unlocked	Yes	No
Cooler in the box
Cooler in the box	No	–
Memory support
Memory support	DDR4 UDIMM; two channels; up to 128 GB. Two single-rank or dual-rank modules support 3200 MT/s; four single-rank modules 2933 MT/s and four dual-rank modules 2667 MT/s. ECC requires motherboard support.	DDR4; eight channels; up to 3200 MT/s. AMD’s exact-model launch table supports up to 2 TB ECC UDIMM, RDIMM or LRDIMM memory; motherboard and system limits can be lower.
PCIe
PCIe	PCIe 4.0; 24 native lanes in total, 20 usable. X570 adds 16 usable PCIe 4.0 lanes.	PCIe 4.0; AMD’s exact-model launch table lists 128 lanes
Chipsets
Chipsets	AMD lists X570, X470, X370 and B450; check the motherboard's CPU support list and BIOS.	–
Process
Process	TSMC 7nm FinFET CPU cores.	CPU cores: TSMC 7 nm FinFET
Cooler
Cooler	No cooler included; liquid cooling recommended. AMD's November launch notice recommends an AIO with at least a 280 mm radiator. Maximum operating temperature 95°C.	AMD’s current specification does not state whether a cooler is included. Maximum operating temperature 90°C.