AMD Ryzen Threadripper PRO 3945WX vs Intel Core i9-10920X

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Ryzen Threadripper PRO 3945WX compared with Core i9-10920X

	AMDRyzen Threadripper PRO 3945WX	IntelCore i9-10920X
Overview
Released
Released	September 2020	2019
Cores and clocks
Cores
Cores	12	12
Threads
Threads	24	24
Base clock
Base clock	4 GHz	3.5 GHz
Boost clock
Boost clock	4.3 GHz	4.8 GHz (better)
L3 cache
L3 cache	64 MB (better)	19.25 MB
Cores
Cores	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 Release is kept at OEM month precision; an exact first-sale day for this model is unpublished.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.	Cascade Lake-X; Hyper-Threading and an unlocked multiplier, confirmed by Intel’s exact-model family product brief.
Clocks
Clocks	Precision Boost 2; maximum boost up to 4.3 GHz. Locked for overclocking.	Turbo Boost Max 3.0 up to 4.80 GHz on the preferred cores; ordinary Turbo Boost 2.0 up to 4.60 GHz. Intel targeted November 2019 availability, but first actual sale was not established in the bounded source pass; conservative year precision is retained.
Cache
Cache	L1 768 KB; L2 6 MB; L3 64 MB	19.25 MB Intel Smart Cache; Intel’s exact-model product-brief table identifies it as L3 cache.
Graphics and AI
Built-in graphics
Built-in graphics	No	No
Graphics
Graphics	A separate graphics card is required	No processor graphics, explicitly confirmed by Intel’s exact-model support table.
AI engine
AI engine	–	Intel Deep Learning Boost provides CPU inference instructions; this is not a separate NPU.
Platform
Socket
Socket	sWRX8	LGA2066
Base power
Base power	280 W	165 W
Unlocked
Unlocked	No	Yes
Cooler in the box
Cooler in the box	–	No
Memory support
Memory 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.	Up to 256 GB; four channels of DDR4-2933; 94 GB/s maximum published bandwidth; no ECC.
PCIe
PCIe	PCIe 4.0; AMD’s exact-model launch table lists 128 lanes	48 CPU lanes; PCIe 3.0. The 72-lane family platform figure includes chipset lanes.
Chipsets
Chipsets	–	Intel X299; LGA2066.
Process
Process	CPU cores: TSMC 7 nm FinFET	14 nm; Cascade Lake-X.
Cooler
Cooler	AMD’s current specification does not state whether a cooler is included. Maximum operating temperature 90°C.	Intel explicitly excludes a fan and heatsink from the boxed product. Intel’s support article confirms solder thermal interface material for this exact model; published junction limit 94°C.