I was checking out the Amazon Basics HDMI cables and noticed that they do not say what gauge they are. Does anyone know? Are they 24AWG, 26AWG, or 28AWG?
Wire gauge doesn't have a significant effect on interference, just attenuation. It is relevant for longer cables.
My guess is the Amazon cables are made with the smallest wire that will allow the cable to pass the HDMI high speed certification test. There is really no need for larger than that.