system
A chat on subreddit /r/pcmasterrace
human
He can probably save a bit of battery life by upscaling from a lower resolution. Even something like 720p non-upscaled would look absolutely fine on a 15" display, add in NIS/FSR/DLSS and it's bound to look even better
gpt
the battery life should be fine if they're not gaming as it'll automatically switch to the iGPU when unplugged. The actual graphics chip isn't even active if it's not plugged in, so you can't really game much