AMD Ryzen 7 9850X3D vs AMD Ryzen 9 3900XT

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Ryzen 7 9850X3D compared with Ryzen 9 3900XT

	AMDRyzen 7 9850X3D	AMDRyzen 9 3900XT
Overview
Released
Released	January 2026	July 2020
Cores and clocks
Cores
Cores	8	12 (better)
Threads
Threads	16	24 (better)
Base clock
Base clock	4.7 GHz	3.8 GHz
Boost clock
Boost clock	5.6 GHz (better)	4.7 GHz
L3 cache
L3 cache	96 MB (better)	64 MB
Cores
Cores	8 Zen 5 cores with simultaneous multithreading; codename Granite Ridge AM5; 2 dies in the package	Zen 2; Matisse
Clocks
Clocks	Precision Boost 2; Precision Boost Overdrive and Curve Optimizer supported	–
Cache
Cache	L1 640 KB, L2 8 MB, L3 96 MB	L2 6 MB
Graphics and AI
Built-in graphics
Built-in graphics	Yes	No
Graphics
Graphics	AMD Radeon Graphics, 2 graphics cores at 2200 MHz; USB-C DisplayPort Alt Mode	A separate graphics card is required
Platform
Socket
Socket	AM5	AM4
Base power
Base power	120 W	105 W
Unlocked
Unlocked	Yes	Yes
Cooler in the box
Cooler in the box	No	No
Memory support
Memory support	DDR5, 2 channels, up to 256 GB (UDIMM); DDR5-5600 with 2 modules, DDR5-3600 with 4; ECC with motherboard support	DDR4; up to 3200 MT/s
PCIe
PCIe	PCIe 5.0; 28 lanes (24 usable); native USB: 4 × USB 3.2 Gen 2 (10Gbps), 1 × USB 2.0	PCIe 4.0
Chipsets
Chipsets	A620, X670E, X670, B650E, B650, X870E, X870, B840, B850	–
Process
Process	TSMC 4nm FinFET (CPU cores), TSMC 6nm FinFET (I/O die)	TSMC 7nm FinFET
Cooler
Cooler	Not included; Liquid cooler recommended for optimal performance; Tjmax 95°C	No cooler included; AMD recommends a liquid cooler with at least a 280 mm radiator or equivalent air cooling; Tjmax 95°C