> What "latency" would you like to measure? How long from user input to pixels changing. > the latency has to be the same as the builtin GPU to function. Obj

> What "latency" would you like to measure? How long from user input to pixels changing. > the latency has to be the same as the builtin GPU to function. Objectively false. A few years ago it was very common for Windows laptops with discrete Nvidia GPUs to have increased latency when using the discrete the GPU. The reason is that the frame buffer had to be copied from the discrete GPU to integrated to monitor. Now maybe this doesn’t matter and you don’t care. But I’d like to know. The fact that it’s rarely done is a serious lack of rigor IMHO. My intuition is that it varies by chassis. I’d be shocked if they’re all the exact same! eGPUs are still significantly slower than having the GPU built in. Maybe they’re bottlenecked due to the connection, I dunno. It’s something that I thought would have gotten better in the past four years. But maybe eGPUs are even an worse deal now!