AMD engineer confirms Radeon 7000 “RDNA3 (Navi 3X)” GPUs use 5nm and 6nm nodes

Published: Feb 4th 2022, 14:33 GMT   Comments

AMD RDNA3 confirmed to be a hybrid of 5nm and 6nm nodes

AMD’s Infinity Data Fabric Silicon Design Engineer has confirmed through its Linkedin profile that the next generation Navi 3X architecture is to utilize 5nm and 6nm nodes. 

Earlier this week AMD CEO made first comments this year on RDNA3 consumer graphics architecture. The company is now set to launch the first Navi 3X GPUs by the end of this year alongside its new Zen4 “Raphael” CPU architecture. AMD has not yet confirmed the fabrication nodes for these new GPUs, although most rumors seem to suggest it is a hybrid of 5nm and 6nm nodes.

It seems that those rumors have finally been confirmed by an AMD employee who now lists these new GPUs on his Linkedin profile. Not only does he list each of the Navi 3X GPUs, but also the nodes each of them use. According to his profile, Navi 31 and Navi 32 are to utilize 6nm and 5nm nodes, while Navi 33 is 6nm. This indirectly confirms the rumors that Navi 33 will be the only monolithic GPU in the series.

AMD Navi 31/32/33/MI300 Fabrication Nodes, Source: Linkedin

Interestingly, the profile also mentions MI300, which is a successor to Instinct MI200 data-center accelerator, AMD’s first Multi-Chip-Module (MCM) design GPU. Not much is known about this GPU yet, except for the fact that it might compete against NVIDIA Hopper and Intel Ponte Vecchio.

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 or 16
Stream Processors15360102405120 or 4096
Memory & Busup to 32GB GDDR6 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 based on rumors

Update: the information about unreleased GPU nodes has already been removed from the profile.

Source: Linkedin (profile no longer available) via @blueisviolet

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