According to latest rumors from Twitter user Greymon55, he has wrote some specs of upcoming AMD RDNA3 GPUs: Radeon RX 7900 XT, Radeon RX 7800 XT, Radeon RX 7700 XT.
Radeon RX 7900 XT may use Navi 31 GPU, equipped with 16GB of GDDR6 memory on a 256-bit bus, same as current Radeon RX 6900 XT. Radeon RX 7800 XT may use Navi 32 GPU, equipped with 12GB of GDDR6 memory on a 192-bit bus. Radeon RX 7700 XT may use Navi 33 GPU, equipped with 8GB of GDDR6 memory on a 128-bit bus.
As rumored before, the released for AMD Radeon RX 7000 series GPUs will be in the second half of 2022. To compete with NVIDIA’s GeForce RTX 40 series.
Some information and a few guesses:
31=
~60WGP
~16GB 256bit GDDR6
~256M 3D IFC
~2.5GHz32=
~40WGP
~12GB 192bit GDDR6
~192M 3D IFC
~2.6~2.8GHz33=
~16WGP
~8GB 128bit GDDR6
~64M IFC
~2.8~3.0GHz— Greymon55 (@greymon55) December 17, 2021