AMD Ryzen Threadripper 1920X vs AMD Ryzen Threadripper PRO 3945WX

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Ryzen Threadripper 1920X compared with Ryzen Threadripper PRO 3945WX

	AMDRyzen Threadripper 1920X	AMDRyzen Threadripper PRO 3945WX
Overview
Released
Released	August 2017	September 2020
Cores and clocks
Cores
Cores	12	12
Threads
Threads	24	24
Base clock
Base clock	3.5 GHz	4 GHz
Boost clock
Boost clock	4 GHz	4.3 GHz (better)
L3 cache
L3 cache	32 MB	64 MB (better)
Cores
Cores	Zen architecture; boxed product ID YD192XA8AEWOF. AMD's support page lists 31 July 2017, when pre-orders began; its press release confirms on-shelf availability on 10 August 2017, used here.	Castle Peak; Zen 2. Tray ID 100-000000168. 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 Release is kept at OEM month precision; an exact first-sale day for this model is unpublished. The socket is sWRX8 according to LDLC’s exact tray listing; AMD’s current support page omits it.
Clocks
Clocks	AMD states up to 4.2 GHz with XFR under suitable cooling, separate from the published 4.0 GHz maximum boost	Precision Boost 2; maximum boost up to 4.3 GHz. Locked for overclocking.
Cache
Cache	L1 1152 KB; L2 6 MB	L1 768 KB; L2 6 MB; L3 64 MB
Graphics and AI
Built-in graphics
Built-in graphics	No	No
Graphics
Graphics	A separate graphics card is required	A separate graphics card is required
Platform
Socket
Socket	sTR4	sWRX8
Base power
Base power	180 W	280 W
Unlocked
Unlocked	Yes	No
Cooler in the box
Cooler in the box	No	–
Memory support
Memory support	DDR4; four channels; up to 2667 MT/s	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 3.0; 64 lanes	PCIe 4.0; AMD’s exact-model launch table lists 128 lanes
Process
Process	14 nm	CPU cores: TSMC 7 nm FinFET
Cooler
Cooler	No cooler included; maximum operating temperature 68°C	AMD’s current specification does not state whether a cooler is included. Maximum operating temperature 90°C.