EDIT: When looking first at TFA, I did not notice that only the first demonstration was done on an Apple laptop using Neon instructions, but the second demonstration was done on an unnamed laptop with an x86 CPU, thus using the AVX2 vector instructions.

The x86 demo decoded in real time an 1080p/24 fps video stream. Because for Apple the resolution is not specified, we can assume that it was lower than on the x86 laptop.