AMD Navi 31 with 15360 cores may no longer feature “Compute Units”

Published: 26th Jul 2021, 09:17 GMT   Comments

Please note that this post is tagged as a rumor.

Could those be the specs of AMD Radeon RX 7900XT?

New information on the next-gen flagship Navi 31 GPU.

Guys over at 3DCenter have been busy putting together all the Navi 31 rumors that emerged over the weekend. They gathered information from multiple sources, some of which appear to match each other.

Following Yuko Yoshida’s claim that the next-gen flagship GPU called Navi 31 could feature as many as 60 RDNA WorkGroups and Kopite7Kimi’s report on 15360 cores, another person appears to corroborate this rumor. According to Bondrewd, a member of Beyond3D forums, there are 30 RDNA Workgroup Processors (WGP) in Navi 31 GPU. This graphics processor is now rumored to be a dual-die (MCM) design, which would suggest 15360 cores, should each cluster contain 256 shadings units (FP32 cores/Stream Processors), a double of what RDNA2 WGP features.

Possibly an interesting change to the design is also the supposed lack of Compute Units. The GPU would be split into workgroups instead of workgroups containing compute units. This shouldn’t really change much in terms of design complexity, but it is an interesting change nonetheless.

Source: Beyond3D forum

A discussion is also taking place in regard to Navi 31 memory configuration. While no one has yet shared the memory capacity of the next flagship feature, it is commonly believed that Navi 31 is still to offer a 256-bit bus. What is important though is that the Infinity Cache is to expand from RDNA2’s 128MB to 256MB or even 512MB on RDNA3, depending on who is reporting.

AMD RDNA3 architecture should now debut in Q3 or Q4 of 2022. AMD is also developing Navi 34, Navi 33 and Navi 32 GPUs.

AMD RDNA Flagship GPUs
Navi 10
Navi 21
Navi 31
Package typeMonolithicMonolithicMCM
Architecture7nm RDNA17nm RDNA25nm RDNA3
Number of graphics dies112
Shader Engines24TBC
RDNA WGP204030
FP32 Cores per WGP128128256
Compute Units4080
Stream Processors
Memory Bus
Memory Configuration
Infinity Cache
128 MB
Radeon SKURX 5700 XTRX 6900 XTRX 7900 XT?
Release DateJuly 2019December 2020Q4 2022

Source: Beyond3D Forums via 3DCenter

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