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Unreleased AMD Ryzen 9 5900X3D Engineering Sample Appears With 128 MB L3 Cache
What happened
An engineering sample of the unreleased Ryzen 9 5900X3D has surfaced with 128 MB of L3 cache, running at 4.7 GHz. This differs from the dual-stack 192 MB prototype shown previously and requires specific BIOS support. Neutral: No immediate impact on current market supply or pricing.
Impact and signal
Low impactImpact score: 10/100
Affected components and suppliers
Ryzen 9 5900X3DZen 3
engineering_samplecachezen3
Source and time
Source: TechPowerUp · 10/2/2026 · View original source
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