I've tried different cheap hdmi cables and notice some difference.

Some of the head size had different depths. Which makes it a pain if some of the connection points are deep, can't even get a signal.

Another cable I've tried gives red "noises" here and there when set the input at 60Hz. No such problem at 24 Hz but still, kinda makes paying rm40 for it a b****.

Thats my experience anyway.