During this recent hours, we have just got new information about the specifications of the upcoming AMD Radeon RX 6000 series graphics cards. According to the well-informed Rogame, as usual, the new generation of AMD Radeon GPUs (Navi 2X) will start off with two graphics chips with significantly different memory configurations.
We are talking about Navi 21 and Navi 22, where the first GPU is based on the so-called Big Navi, which will be powered by the flagship models of the AMD Radeon RX 6000 series, while the latter is the basis for high-performance graphics, but at a price of about $500.
At least this is the result of unofficial reports, but we will have to wait until October 28 for the official verification of this information, when the presentation of the Radeon RX 6000 video cards is supposed to be announced.
Moving on to the specifics, i.e. the VRAM configuration, Navi 21 is to offer 16 GB of memory, and previous leaks show that the Big Navi engineering samples were equipped with GDDR6 chips from Samsung, which supported a 256-bit interface. Thus, in the case of the flagship Radeon RX 6900 XT model, we can expect just 16 GB of VRAM.
On the other hand, in Navi 22 we expect 12 GB of graphics memory and in this case, we will most likely get a 192-bit bus. Based on the specs, graphics with this GPU are likely to be the successor to the Radeon RX 5700 XT series. We are not sure about their names yet, but expect the Radeon RX 6700 XT or the Radeon RX 6800 XT.
However, Rogame stressed that he did not know if both of the variants he confirmed (Navi 22 and Navi 21) are full GPU based or if they are a trimmed version of these chips. It is worth emphasizing that 16 GB and 12 GB can be paired with a 512-bit and 384-bit bus, so AMD has room for maneuver here.
It is also surprising to bet on the older generation of memory, i.e. GDDR6, but you have to remember that Micron promoted GDDR6X as VRAM for NVIDIA from the very beginning. There is probably no chance for HBM2, which is simply too expensive. Thus, the new Radeons may offer more memory than their competitors from NVIDIA, but the team green video cards will probably boast faster memory.
I've now got confirmation for both :
> Navi21 16GB VRAM
> Navi22 12GB VRAM
I have no idea if these are full die or cut down SKUs
— _rogame (@_rogame) September 17, 2020