AMD has confirmed Navi 48 and Navi 44 through ROCm, and the corresponding graphic IDs are "GFX1200" and "GFX1201" respectively.
There has been a lot of exposure about AMD's next-generation graphics card before. According to AMD's RDNA/CDNA series architecture roadmap, GPUs based on RDNA 4 architecture correspond to Navi 4x series chips, which are manufactured by 4nm process to further improve energy efficiency. It is said that there are only two chips, Navi 48 and Navi 44, whose specifications have been exposed before. At present, AMD's latest code further confirms the existence of these two GPUs.
Recently, a netizen found that AMD has confirmed Navi 48 and Navi 44 through ROCm, and the corresponding graphic IDs are "GFX1200" and "GFX1201" respectively. This is also the only updated GPU after Phoenix's RDNA 3 architecture is highlighted. If you pay attention to the RDNA 4 architecture GPU messages in the past, this information will not be surprising.
According to previous revelations, AMD RDNA 4 graphics card will be the architecture adjustment of RDNA 3. Among them, the relatively strong Navi 48 GPU performance may be as good as RX 7900 XT. It will be equipped with 32 WGPs, 64 CUs in total, 256 bit video memory bandwidth, 693GB/s video memory bandwidth, 2770GB/s equivalent bandwidth, and 240mm ² GPU chip area. As a comparison, the Navi 32 on the Radeon RX 7800 XT is currently 346mm ², with 60 CUs. The video memory bit width is also 256 bit, the video memory bandwidth is 624.1GB/s, and the equivalent bandwidth is 2708GB/s. It is said that Navi 48 provides 50 TFLOPs of computing performance at 215W power.
Another lower specification Navi 44 is targeted at the middle and low end market, with only 16 WGPs. There are 32 CUs in total, the video memory bit width is 128 bit, the video memory bandwidth is 288GB/s, the equivalent bandwidth is 515GB/s, and the GPU chip area is 130mm ². As a comparison, the Navi 33 on the Radeon RX 7600 is 204mm ² at present, which is also 32 CUs, 128 bit wide video memory, and 288GB/s.
