AMD Ryzen 9 3900XT vs AMD Ryzen 9 5900X

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

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Ryzen 9 3900XT compared with Ryzen 9 5900X

	AMDRyzen 9 3900XT	AMDRyzen 9 5900X
Overview
Released
Released	July 2020	November 2020
Cores and clocks
Cores
Cores	12	12
Threads
Threads	24	24
Base clock
Base clock	3.8 GHz	3.7 GHz
Boost clock
Boost clock	4.7 GHz	4.8 GHz (better)
L3 cache
L3 cache	64 MB	64 MB
Cores
Cores	Zen 2; Matisse	Zen 3; Vermeer. Two CPU chiplets with six active cores each (PC Gamer).
Clocks
Clocks	–	Unlocked for overclocking; AMD's launch notice describes Precision Boost 2 and Precision Boost Overdrive.
Cache
Cache	L2 6 MB	6 MB L2; Zen 3 unifies each eight-core complex around 32 MB of L3 cache, as described in AMD's launch notice.
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	AM4	AM4
Base power
Base power	105 W	105 W
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	No	No
Memory support
Memory support	DDR4; up to 3200 MT/s	DDR4; up to 3200 MT/s.
PCIe
PCIe	PCIe 4.0	PCIe 4.0.
Chipsets
Chipsets	–	AMD's launch notice specifies 500-series motherboards with a BIOS update; check the motherboard CPU support list.
Process
Process	TSMC 7nm FinFET	TSMC 7nm FinFET CPU cores; separate 12nm I/O die (PC Gamer).
Cooler
Cooler	No cooler included; AMD recommends a liquid cooler with at least a 280 mm radiator or equivalent air cooling; Tjmax 95°C	No thermal solution included; AMD recommends liquid cooling for optimal performance. Maximum operating temperature 90°C.