https://wccftech.com/amd-radeon-rx-big-navi-gpu-16-gb-12-gb-memory-graphics-cards-rumor/

AMD's Big Navi Radeon RX graphics card rumors are heating up as we get closer to Q4 2020. After the most recent rumor from Chinese PTT forums, a second rumor has emerged which points to a similar story but also adds in an interesting detail about the various configurations that we could expect from AMD's enthusiast-grade RDNA 2 'Navi 2X' GPUs.

The second rumor comes from a more credible leaker 'Wjm47196' from Chiphell who has got many AMD specific rumors correct in the past. According to his latest rumor, the AMD Navi 21 GPU, which is internally referred to as 'Big Navi' and has been spotted with the Sienna Cichlid & Navy Flounder codenames, will feature at least two different memory configurations.