New AMD Navi 31, Navi 32 and Navi 33 GPU details emerge with up to 12,288 Stream Processors for rumoured RX 7900 XT
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||40 32|
|RDNA Workgroups (WGP)||20 16|
|Stream Processors||5,120 4,096|