https://wccftech.com/nvidia-geforce-mx550-laptop-gpu-might-be-green-teams-answer-to-amds-rembrandt-rdna-2-apus-2-gb-gddr6-memory-15-faster-than-mx450/

NVIDIA could be launching its next entry-level discrete GPU for the laptop market, the GeForce MX550, powered by the Ampere architecture. The MX550 will replace the Turing-based MX450 which has been around for a few years now.

The NVIDIA GeForce MX550 was spotted within the Geekbench database by ITHome and while the codename for the chip isn't confirmed since it hasn't been released yet, the source speculates that this could indeed be a new MX chip for the entry-level laptop graphics segment. The GPU features a total of 16 SM units for a total of 128 CUDA cores and 2 GB of GDDR6 memory operating at around 10-12Gbps speeds. It is likely that the chip features a 64-bit bus interface just like its predecessors so that will yield a total bandwidth of 80 - 96 GB/s which should be enough for an entry-level chip.