AMD might feature both RDNA 3 and RDNA 2 GPUs within its Radeon RX 7000 lineup of graphics cards, as rumored in the latest details posted by Greymon55.

AMD Radeon RX 7000 Series Graphics Cards To Utilize Both RDNA 3 and Refreshed RDNA 2 GPUs According To Rumor

The AMD Radeon RX 7000 series family will be a mix of various GPUs based on different designs & architectures. The rumors make it seem like we are looking at a family that will be reminiscent of the Radeon 300 & Fury series.

6nm refresh

— Greymon55 (@greymon55) August 16, 2021

Only N31-33 seems to be the RDNA3 core.

— Greymon55 (@greymon55) August 11, 2021

Based on the details posted by the leaker and summarized by 3DCenter (via Videocardz), it looks like AMD's high-end Radeon RX 7000 series graphics cards, namely the RX 7900, RX 7800 series, & RX 7700 series is going to utilize GPUs that will be based on the brand new RDNA 3 architecture. It will comprise Navi 31, Navi 32, and Navi 33 GPUs but it's only Navi 31 and Navi 32 which are going to utilize an MCM architecture whereas Navi 33 will rely on a monolithic design and feature a core count similar to Navi 21 (RDNA 2) at 5120 cores.

However, the mainstream and entry-level configurations won't be utilizing an RDNA 3 architecture but instead, they will be part of an RDNA 2 refresh cycle. This cycle is expected to include Navi 22, Navi 23, & Navi 24 GPUs, all of which are rumored to be fabricated on the 6nm process node. The RDNA 3 GPUs are also expected to mix-match 5nm and 6nm nodes for the various chiplets but the monolithic RDNA 2 GPUs will be using a 6nm node, allowing for slightly higher clocks and efficiency figures. Following is what 3DCenter has speculated the AMD Radeon RX 7000 series family to look like when it launches next year:

in addition to RDNA 3 details, it is also stated that AMD's RDNA 4 (Navi 4X) GPUs will have a larger SKU family compared to RDNA 3 (Navi 3X). So while AMD could possibly name refreshed RDNA 2 GPUs as Navi 3X GPUs, they won't technically fall within the RDNA 3 family. The first AMD RDNA 3 GPUs are also expected to tape out later this year and we have already detailed the speculated die configurations for both MCM and monolithic Navi 3X GPUs that will go on to power the next-gen Radeon RX 7000 series graphics card lineup, here.

AMD RDNA 3 Navi 3X GPU Configurations (Preliminary)