Navi 31 appears in AMD’s patch
In October last year, it was reported that Navi 31, the top chip in AMD’s next-generation RDNA 3 architecture, has been taped out, which is an important step in the process of GPU entering the market. It generally takes about 8 months from tape-out to mass shipment. As AMD’s first consumer-grade GPU in an MCM multi-chip package, the project cycle may be longer, and sufficient time should be reserved for related work.
Twitter user @Kepler_L2 revealed that Navi 31 has recently appeared in AMD’s update log, which shows that the entire RDNA 3 architecture plan is proceeding step by step, and there is not much doubt about the launch this year.
At the 2021 earnings call earlier this year, AMD CEO Dr. Lisa Su confirmed that there will be several important product releases during the year, including CPUs based on the Zen 4 architecture and GPUs based on the RDNA 3 architecture. Around the same time, there were AMD engineers listing every new Navi 3x series GPU on their Linkedin profiles. In the Navi 3x series of GPUs, Navi 31 and Navi 32 will be packaged in MCM multi-chip packages. GCD (graphics computing chip) and MCD (multi-cache I/O chip) will use two different process technologies, namely TSMC’s 5nm and 6nm. process, while Navi 33 is still a single chip.
It is rumored that AMD will change the original structure, no longer the original CU computing unit, and will use WGP as the main computing module, and each WGP has 256 stream processors. Among them, Navi 31 will have 60 WGPs, that is, 15360 stream processors, the Infinity Cache will be 512MB, and the video memory bit width will remain at 256 bits.
