Just out of curiosity, when you say better battery performance, what kind of battery are we talking about? Is this in a laptop, a desktop on some sort of remote/ backup system?
I see, so is it a known thing that AMD CPU laptops generally have better battery life? I always see arguments for one CPU/GPU over another because of better power consumption, but I've never been in a position where I needed to worry much about it, so I've never looked much into the claims.
Seemed that way when I was shopping last, but that was over a year ago so I can't cite sources. Supposedly their low mode uses less power and runs faster than Intel's. I can't confirm the faster part but it definitely lasts longer on battery power than any of the Intel laptops I've owned.