AMD will launch Radeon RX 7000 series graphics cards this year, equipped with Navi 3x series GPUs based on the RDNA 3 architecture. It is rumored that the highest-end Navi 31 will be packaged in an MCM multi-chip package, equipped with one GCD (graphics computing chip) and six MCD (multi-cache I/O chips). At the same time, two different process technologies will be used. The GCD is TSMC’s 5nm, and the MCD is 6nm. The number of stream processors is 12,288, equipped with 24GB of video memory, and the bit width is 384 bits.
Recently, Twitter user @greymon55 revealed that although Navi 31 does not use dual GCDs as originally rumored, but AMD is indeed working on a Navi 3x GPU with dual GCDs, corresponding to 16,384 stream processors, and is scheduled to launch in 2023. From the paper parameters, the size of the RDNA 3 architecture GPU with dual GCD configuration is double that of Navi 32 (8192 stream processors). Whether this is achieved through a multi-chip package or with two Navi 32 GPUs is unclear for the time being.
RedGamingTech believes that the dual-GCD configuration of RDNA 3 architecture GPUs will eventually be used in the Radeon Pro series of workstations, rather than the Radeon RX series aimed at gaming. The Radeon RX series will also have a dual-GCD configuration GPU in the future, but it will not appear until the Navi 4x series of the RDNA 4 architecture.
AMD on the Navi 2x series GPUs based on the RDNA 2 architecture. The Radeon Pro W6800X Duo with a dual-GPU configuration has been launched, using Infinity Fabric interconnect technology to provide a high-bandwidth, low-latency direct connection between GPUs, which is exclusively provided for Mac Pro use. RedGamingTech’s claim casts doubt on whether AMD is once again offering a similar product to Apple.