AMD Ryzen 9 3900X vs Intel Core i7-12700K

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Ryzen 9 3900X compared with Core i7-12700K

	AMDRyzen 9 3900X	IntelCore i7-12700K
Overview
Released
Released	July 2019	November 2021
Cores and clocks
Cores
Cores	12	12 (8 performance, 4 efficiency)
Threads
Threads	24 (better)	20
Base clock
Base clock	3.8 GHz	3.6 GHz
Boost clock
Boost clock	4.6 GHz	5 GHz (better)
L3 cache
L3 cache	64 MB (better)	25 MB
Cores
Cores	Zen 2; Matisse; twelve cores with simultaneous multithreading. Two CPU chiplets with six active cores each and a separate I/O die (PCGamesN).	8 P-cores and 4 E-cores; 20 threads. Intel Thread Director supported.
Clocks
Clocks	Unlocked for overclocking; Precision Boost Overdrive with Automatic Overclocking supported, as described in AMD's launch notice.	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	768 KB L1; 6 MB L2; 64 MB L3.	25 MB Intel Smart Cache (L3); 12 MB total L2.
Graphics and AI
Built-in graphics
Built-in graphics	No	Yes
Graphics
Graphics	No integrated 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	AM4	LGA1700
Base power
Base power	105 W	125 W
Maximum power
Maximum power	–	190 W
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	Yes	No
Memory support
Memory support	DDR4; two channels; up to 3200 MT/s.	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 x16; AMD introduced PCIe 4.0 support with the X570 platform at launch.	PCIe 5.0 and 4.0; 20 CPU lanes: 1 × 16 + 4 or 2 × 8 + 4; DMI 4.0 × 8.
Chipsets
Chipsets	X570 at launch; check the motherboard's CPU support list and BIOS for other AM4 boards.	–
Process
Process	TSMC 7nm FinFET CPU cores; 14nm I/O die (PCGamesN).	Intel 7; Alder Lake; 45 × 37.5 mm package; 100°C maximum junction temperature.
Cooler
Cooler	Retail boxed processor includes an RGB cooler (PCGamesN; inclusion also confirmed by TechRadar); AMD's current support specification does not name a cooler. Maximum operating temperature 95°C.	No cooler included with the boxed K processor (Intel support).