AMD Ryzen Threadripper PRO 3945WX vs Intel Core i7-12700K

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Ryzen Threadripper PRO 3945WX compared with Core i7-12700K

	AMDRyzen Threadripper PRO 3945WX	IntelCore i7-12700K
Overview
Released
Released	September 2020	November 2021
Cores and clocks
Cores
Cores	12	12 (8 performance, 4 efficiency)
Threads
Threads	24 (better)	20
Base clock
Base clock	4 GHz	3.6 GHz
Boost clock
Boost clock	4.3 GHz	5 GHz (better)
L3 cache
L3 cache	64 MB (better)	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 Release is kept at OEM month precision; an exact first-sale day for this model is unpublished.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.	8 P-cores and 4 E-cores; 20 threads. Intel Thread Director supported.
Clocks
Clocks	Precision Boost 2; maximum boost up to 4.3 GHz. Locked for overclocking.	P-cores: 3.6 GHz base, up to 4.9 GHz Turbo Boost 2.0 and 5 GHz Turbo Boost Max 3.0; E-cores: 2.7 GHz base, up to 3.8 GHz turbo.
Cache
Cache	L1 768 KB; L2 6 MB; L3 64 MB	25 MB Intel Smart Cache (L3); 12 MB total L2.
Graphics and AI
Built-in graphics
Built-in graphics	No	Yes
Graphics
Graphics	A separate graphics card is required	Intel UHD Graphics 770; 32 execution units; 300 MHz base, up to 1.5 GHz; Quick Sync Video; up to four displays.
Platform
Socket
Socket	sWRX8	LGA1700
Base power
Base power	280 W	125 W
Maximum power
Maximum power	–	190 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 128 GB; two channels; DDR5-4800 or DDR4-3200; 76.8 GB/s; ECC supported with an appropriate platform.
PCIe
PCIe	PCIe 4.0; AMD’s exact-model launch table lists 128 lanes	PCIe 5.0 and 4.0; 20 CPU lanes: 1 × 16 + 4 or 2 × 8 + 4; DMI 4.0 × 8.
Process
Process	CPU cores: TSMC 7 nm FinFET	Intel 7; Alder Lake; 45 × 37.5 mm package; 100°C maximum junction temperature.
Cooler
Cooler	AMD’s current specification does not state whether a cooler is included. Maximum operating temperature 90°C.	No cooler included with the boxed K processor (Intel support).