Its an optional feature, but DP can do audio. I would expect anything with HDMI to have it.
If you're using TV speakers you're not going to be able to tell the difference between your sound card and TV's DACs so unless you need any of your soundcard's features just use HDMI.
If you're using TV speakers you're not going to be able to tell the difference between your sound card and TV's DACs so unless you need any of your soundcard's features just use HDMI.
