You're right, the cable is fully compatible with the HDMI 2.0 spec.(it's the specification that's 2.0, not the cable). When it comes to choosing cables, there's no one "right" cable - it's a case of going with the best cable you can. This is because cables cannot improve the signal they carry, they can only make improvements by introducing less distortion into the system and doing less harm to the signal. The less distortion, the better. The best cable therefore is the one that introduces the least distortion and affects the signal as little as possible. And this is true for all cables. And the further up the line you go, the better it gets.

Ocean, like all other AudioQuest HDMI cables uses very high quality solid conductors, high quality insulation materials, high quality connectors and pays attention to things that don't seem important, such as the twist rate of the four pairs of conductors that carry the picture and sound. What this means is that AudioQuest cables introduce significantly less distortion into a system than other brands of cables, and as a result you get better picture and sound quality.

I hope this helps.