According to a tweet from @Kepler L2, AMD’s mid-range RDNA 3 graphics cards, including the Radeon RX 7600 XT, will reportedly use the Navi 33 GPU. A fresh report by @Kepler L2 seems to suggest that the AMD RDNA 3 “Navi 33” GPU will be used in the Radeon RX 7600 series, which is more of a mid-range lineup.
The AMD RDNA 3 “Navi 33” GPU was previously rumoured to be utilized in the Radeon RX 7700 series lineup. It makes sense because the Radeon RX 6600 series lineup includes the current Navi 23 cards, but doing so would also need a significant price increase for the category as a whole.
The Navi 21 GPU on the more recent RDNA 3 architecture was optimized to create the Navi 33 GPU, which is regarded as a mid-range processor. It is anticipated to be based on a monolithic TSMC 6nm architecture and should be between 360 and 460 mm2. Compared to the Navi 21 GPU, which is powering the premium Radeon RX 6000 series and has a die size of 520mm2, that is an 11 to 30% reduction in die area.
The Navi 33 GCD is anticipated to include two Shader Engines, each of which contains two Shader Arrays (two per SE, for a total of four). Previously, it was anticipated that each Shader Array would consist of 8 WGPs (8 per SE, totaling 16) and that each WGP would have 8 SIMD32 units with 32 ALUs (64 SIMD32 per SA, totaling 128 per SE). These SIMD32 units add up to 4096 cores, matching the number of cores in the RX 6900 XT (Navi 21 XTX GPU). There are 20% fewer cores here than on the Navi 21 GPU at full capacity.
The Navi 33 GCD is anticipated to include two Shader Engines, each of which contains two Shader Arrays (two per SE, for a total of four). Previously, it was anticipated that each Shader Array would consist of 8 WGPs (8 per SE, totaling 16) and that each WGP would have 8 SIMD32 units with 32 ALUs (64 SIMD32 per SA, totaling 128 per SE). These SIMD32 units add up to 4096 cores, matching the number of cores in the RX 6900 XT (Navi 21 XTX GPU). There are 20% fewer cores here than on the Navi 21 GPU at full capacity.
On the AMD Radeon RX 7600 series graphics card, the Navi 33 (RDNA 3) GPU is projected to have 128 MB of Infinity Cache, however, it might not receive the MCD treatment like the Navi 31 and Navi 32 portions.
With a TDP of about 200W, this would boost the AMD Radeon RX 7600 series’ performance above that of the RX 6800 and RX 6900 series (180-230W). Also mentioned is a Gen 5.0 PCIe interface with an x8 link, but this doesn’t seem to be a problem because Gen 4 and Gen 3 x8 links can supply the card with sufficient bandwidth.
The red team will significantly outperform NVIDIA’s GeForce RTX 40 “Ada Lovelace” lineup, which is anticipated to be very power-hungry, thanks to AMD’s RDNA3’s strong emphasis on efficiency.
Also Read: NVIDIA Rumored to launch its GeForce RTX 4090 GPU in October
