It has been confirmed by some recent reports that the RTX 3080 Ti will be the first mobile GPU to feature 16 Gbps GDDR6 memory. Not only this, but it will also possess a higher TGP in comparison with the other recent models.
We do not have much information about the RTX 3080 Ti Laptop GPU yet. The info about CUDA core count is awaited, but we have confirmation that this will be the first GeForce model to feature 16GB of GDDR6 memory clocked at 16 Gbps. Moreover, the maximum graphics power is 10W more than the previous model i.e 175W.
A point to be noted is the maximum TGP is based on the configurable graphics card power with the addition of NVIDIA Dynamic Boost 2.0 technology. Reportedly, RTX 3080 will feature 150W+, but other high-end laptops designs with 165W max TGP also exist.
RTX 3070 Ti mobile is still a bit of a mystery as we do not know about CUDA core count as it has not been confirmed yet. However, we do know it has 8GB GDDR6 memory and there are samples with max TGP up to 150W.
RTX 3080 Ti mobile is to be announced at CES 2022 press conference.