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The Ryzen 9 9900X3D is a 12-core AM5 desktop processor from AMD's Granite Ridge line that adds 3D V-Cache to boost gaming performance. It pairs 12 Zen 5 cores with a large stacked cache, sitting between the 8-core 9800X3D and the 16-core 9950X3D. It suits gamers who also run heavy multitasking and content work, and it drops into existing AM5 boards with a BIOS update. Against Intel's Core Ultra 9 chips it trades some multi-threaded muscle for stronger gaming frame rates.
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Lowest price we've seen: $559.99 on Nov 9 at Newegg. Tracked across 1 store since Nov 9.
Reviewers rate the 9900X3D as a strong all-rounder, close to the 9800X3D in games and well ahead of non-X3D 12-core chips in cache-heavy titles. Owners like the balance of gaming and productivity, though many say the 9800X3D is the better value for pure gaming.
