TGP stands for Total Graphics Power, and refers to the amount of electrical power that a graphics card can draw upon, measured in Watts (W). This is one of the factors which governs the amount of computations that the GPU can do over any given amount of time. The greater the TGP, the better a graphics card will usually perform, although other variables also influence this. TGP is particularly important for laptops due to the restrictions that their small chassis size imposes on the size of cooling solutions, the battery size, and other things which restrict the amount of power that can be devoted to the card compared to a desktop GPU.
The RTX 3070 Ti laptop version has a maximum TGP of 150W (125W + 25W Dynamic Boost). This compares to 140W for the RTX 3070 and 165W for the RTX 3080, though as stated, most laptop models will be well below this ceiling for each graphics card. Where possible we have tried to pick the highest TGP RTX 3070 Ti laptops for our top picks.