AMD Ryzen Threadripper PRO 3955WX vs Intel Core i9-10940X

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

Ryzen Threadripper PRO 3955WX compared with Core i9-10940X

	AMDRyzen Threadripper PRO 3955WX	IntelCore i9-10940X
Overview
Released
Released	September 2020	2019
Cores and clocks
Cores
Cores	16 (better)	14
Threads
Threads	32 (better)	28
Base clock
Base clock	3.9 GHz	3.3 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. 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 Release is kept at OEM month precision; an exact first-sale day for this model is unpublished.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.	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, and Newegg records this exact SKU first listed on 25 November 2019. A listing date alone does not establish first actual sale; conservative year precision is retained.
Cache
Cache	L1 1024 KB; L2 8 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 86°C.