Yes, HDMI 2.0 would be enough for PS5. Modern Full HD (1080p) TVs and monitors typically include an HDMI 2.0 connector, so you'll have no trouble playing PS5 games in excellent quality and at 60 or 120 frames per second if your TV supports it. But if your Tv supports HDMI 2.1, then it would be ideal to buy an HDMI 2.1 connection to get a better audio-video output.