Framework

Just upgraded from an 11th Gen i7 to the 7th gen R7 and my battery performance improved greatly. How it compares to the 13th gen Intels I couldn't tell you, but from an 11th gen i7 to a 7th gen R7 it was very noticable.

The way I remember amd has even hours more battery life and pure power is also stronger. But some people are still set with Intel because of some reasons but I doubt there are many differences anymore.

AMD will have both better performance and better battery life.

AMD is the x86 efficiency king. Still humbled by Apple (or maybe arm in general) but better than Intel.

AMD. No contest. The only reason to buy Intel is being able to name and explain a specific feature AMD doesn't offer, or needing delivery in about a week (without watching in the AMD batch queue). AMD is better performing, better power management, and better integrated graphics.

I believe the lower i5 and ryzen 5 both come with the smaller battery. Havent seen too many comparisons on those. All the reviews i have seen are comparing the i7 and ryzen 7 with the bigger battery. That might be a factor. I opted for ryzen 7 with bigger battery as consesus is it runs cooler and quieter, has much better igpu (by 50%).

I've got a Framework with the 1360p for personal use and a HP Zbook from work with the Ryzen 5 Pro 7640HS. The Ryzen is easily as powerful as the 1360p and lasts about 1.5 hours longer performaing the same tasks. I can push 6-7 hours 0n the Ryzen with normal use, not dimming the screen, streaming music/youtube, and software development with multiple VS Code instances running multiple apps at once. For the 1360p, I have to dim the screen to 50% and try to keep the number of thigns running lower to even get 5 horus.

I was skeptical about the AMD as I had the Intel first and its performed very well. Its a fast but hot processor that will chew through a battery. I was concerned the AMD was not going to be able to keep up, but I was very wrong. It runs cooler and more efficiently, so it can run faster for a longer period of time and use less energy doing so. If fact, not only does it run more efficiently, it also doesn't dip in performance while on batter as much as the Intel. There have been a few times I've brought the AMD back to my desk, forgot to plug it in, only to eventually realize it wasn't plugged in when Windows warns me that the battery low.

Honestly, I wish I had waited for the AMD variant of the new mainboard instead of going for the 13th gen Intel, but maybe in the next year or so I'll go for the next AMD upgrade.

Ampere or snapdragon if they ever get the kahunas to try it. If framework did that I would loose it.