I'm wondering about two things:

1. Can laptops with, say NVidia 1070 or 1080 GPUs keep them cool at their stock frequencies for a few hours? My work laptop with non-U i7 (Thinkpad T440p) starts thermal throttling in just a few minutes when I compile something large.

2. Wouldn't two NVidia 1060 or 1070 outperform a single 1080 for training, assuming batch size is kept low enough so that each batch fits in a single card's memory?