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New AMD Navi 31, Navi 32 and Navi 33 GPU details emerge with up to 12,288 Stream Processors for rumoured RX 7900 XT

AMD's RDNA3-based GPUs should not begin arriving until towards the end of 2022. (Image source: AMD)
AMD's RDNA3-based GPUs should not begin arriving until towards the end of 2022. (Image source: AMD)
According to new rumours, AMD's Navi 31 GPU will not launch with 120 Compute Units (CUs) and 15,360 Stream Processors. Instead, AMD's next flagship GPU is now rumoured to offer 96 CUs and 12,288 Stream Processors. There are changes for other Navi 3x GPUs too.

More details about AMD's next flagship gaming GPU have emerged online. Expected to arrive later this year in the Radeon RX 7900 XT, the Navi 31 should challenge the AD102, a GPU at the heart of the GeForce RTX 4090. Initially, @greymon55 and @Kepler_L2 asserted that the Navi 31 would deliver up to 92 TFLOPs of FP32 performance, rivalling the GeForce RTX 4090, discussed separately.

Subsequently, the Navi 31 is now believed to feature fewer Compute Units (CUs) and Stream Processors than was previously alleged. For some reason, the Navi 31 is thought to contain 96 CUs and 12,288 Stream Processors, not 120 and 15,360, respectively. Additionally, the Navi 31 is tipped to utilise 48 RDNA Workgroups (WGP) instead of 60 and will offer 73 TFLOPs of FP32 performance, a significant step down from 92 TFLOPs.

For reference, the Navi 31 will only achieve 73 TFLOPs of FP32 performance if it hits 3 GHz. Separately, it is also claimed that Navi 32 and Navi 31 have the following changed specifications, both downgrades on earlier estimations. However, Navi 33 is still believed to be the only monolithic GPU in AMD's RDNA3 product stack. By contrast, the Navi 31 and Navi 32 are still thought to feature Multi-Chip-Module (MCM) packages.

Navi 32 (RX 7700) Navi 33 (RX 7600)
Compute Units 80 64 40 32
RDNA Workgroups (WGP) 40 32 20 16
Stream Processors 10,240 8,192 5,120 4,096

Source(s)

@3DCenter_org, @greymon55 (1) (2), @Kepler_L2, @Redfire75369 via VideoCardz (1) (2)

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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2022 04 > New AMD Navi 31, Navi 32 and Navi 33 GPU details emerge with up to 12,288 Stream Processors for rumoured RX 7900 XT
Alex Alderson, 2022-05- 2 (Update: 2022-05- 2)