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AMD confirms RDNA 3-based Navi 31 has 6 x MCDs + 384-bit memory bus

AMD's next-gen RDNA 3 GPU architecture: Navi 31 features 6 x MCDs on a 384-bit memory bus, confirmed in new Linux code, pulled.

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AMD is still cooking its next-gen RDNA 3 graphics architecture in the oven, but the flagship Navi 31-based GPU is getting some rumor mill goodness today: kinda, accidentally confirmed MCD counts.

AMD confirms RDNA 3-based Navi 31 has 6 x MCDs + 384-bit memory bus 01

The MCD (multi-chip die) is something we've been hearing about for a while, with more details arriving through leaks in April 2022, but now we're hearing that Navi 31 will have up to 6 x MCDs on a 384-bit memory bus. The news is coming from information posted about the RDNA 3 architecture in new Linux code, but was immediately retracted... not surprised.

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AMD should use a single GCD (Graphics Complex Die) with six MCDs that should see a 384-bit memory bus, while we should see 192MB of Infinity Cache (or up to 384MB if AMD moves with its revolutionary 3D V-Cache technology on each of the MCDs).

AMD confirms RDNA 3-based Navi 31 has 6 x MCDs + 384-bit memory bus 02
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