[talldayo]

> But with the sole exception of the Steam deck

Uuh wut? The Steam Deck is like 3-generation-old hardware in mobile Ryzen terms. In a lot of ways it's similar to a pared-back 4800u with fewer (and older) cores, and a slightly bumped up GPU.

To me it's kinda the opposite. Excluding the Steam Deck, I think most of AMD's Ultrabook APUs have been very close to the products Apple's made on the equivalent nodes. Even on 7nm the 4800u put up a competitive fight against M1, and the gap has gotten thinner with each passing year. According to the OpenCL benchmarks, the Radeon 680m on 6nm scores higher than the M1 on 5nm: https://browser.geekbench.com/opencl-benchmarks

Even back when Ryzen Mobile only shipped with Vega, it was pretty clear that Apple and AMD were a pretty close match in onboard GPU power.

[amlib]

Steam Deck might be behind in terms of hardware but in terms of software it's way beyond your typical x86 linux system power efficiency, and dare I say it's doing better than windows machines with the typical shoddy bioses and drivers, specially when you consider all the extraneous services constantly sapping varying amounts of cpu time. All that contributes to make the SD punch well above its weight.

[sudosysgen]

My Alienware M15 Ryzen edition gets 7-8W power consumption by just running "sudo powertop --autotune". Basically all of the power efficiency stuff in the Steam Deck apply to other Ryzen systems and are in the mainline kernel.