Hell, I have an A12Z-based one and I don't think I've ever maxed out the processor outside of playing games. Occasionally moonlight will drop frames and I'll have to close some background apps or reboot for it to stream perfectly, but I'm also running it with 2388x1668@120hz 150mbps HEVC so I can kind of forgive that. It says quite a lot that my most common use for the thing these days is a very expensive (and very good) wireless monitor.
I was so excited when they announced Logic Pro, and equally as disappointed when it turned out to be Garageband+
And the best part is, because the signal is so clean, and there’s no crappy tape grinding across the head adding noise, the audio quality is damn near on par with just connecting the aux directly to the amplifier.