AMD adds RDNA3 Navi 31 and Navi 33 GPUs to its ROCm dev tools

Published: Aug 14th 2021, 11:36 GMT   Comments

AMD ROCm support for Navi 31/33

AMD RDNA3 GPUs have recently been added to official ROCm developer tools. 

The launch of Navi 3X GPUs may still be far away, but AMD is already preparing its developer tools for the upcoming launch. Two of the three rumored Navi 30 series GPUs can now be found in the Github update. The ROCclr (Radeon Open Compute Common Language Runtime) now lists Navi 31, the rumored flagship of the next-gen series, and Navi 33, considered a mid-range GPU.

AMD Navi 31/33 in ROCm software, Source: Github

Last month was full of RDNA3 leaks and rumors, we have learned of the possible specs of both GPUs and some basic details on their design. The Navi 31 is rumored to be an MCM (multi-chip-module) design with two active graphics chiplets. The GPU is said to offer as many as 15360 FP32 cores, which would be tied to GDDR6 memory. On the other hand, the Navi 33 would be monolithic, making good use of TSMC’s 6nm node with 5120 Stream Processors.

So far the rumors of Navi 3X GPUs taping out have not found any confirmation. Those processors are now expected to launch no sooner than Q3 2022, which means there is still a lot of time for tape out and mass production. Earlier this month, a Twitter user known as Olrak29_ came up with block diagrams of all three rumored Navi 3X GPUs:

AMD Navi 3X GPU Block Diagram, Source: @Olrak29_

Rumored Specs of AMD RDNA3 GPUs
Fabrication NodeTSMC 5nm + 6nmTSMC 5nm + 6nmTSMC 6nm
GPU PackageMulti-Chip-Module (MCM)Multi-Chip-Module (MCM)Monolithic
Estimated GPU Size~800 mm² (or more)TBC~440 mm²
Graphics Dies221
Shader Engines642
RDNA Workgroups (WGP)604020
Stream Processors15360102405120
Memory & BusGDDR6 256-bitGDDR6 192-bitGDDR6 128-bit
 Infinity Cache256-512MB256-384MB128-256MB
Estimated Power Consumption~350-400W+TBCTBC
Release / Annoucement DateLate 2022 Late 2022 Late 2022
Rumored SKURadeon RX 7900XTRadeon RX 7700XTRadeon RX 7600XT
Rumored Performance2.5x NAVI 21TBC> Navi 21
All information is based on rumors

Source: Github via @KOMACHI_ENSAKA

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