HDMI vs DisplayPort

[xDylanio]

So I was doing summer cleaning. When I found my ps3. I decided to bring it up to my room and have it right next to me. The thing is that my ps3 only has only one port. It's HDMI. I was thinking "What if I have my monitor getting two connections, ps3 and pc. When I want to switch to ps3 I'll just switch the input device." Sounded cool but I had to get the hdmi cable from my pc to monitor. Switch it out for a DP and yeah everything seemed fine. Until I wanted to play a game and the cursor kept spazzing out. This happened to me before, but only when I tried to game on a different monitor. Kinda like right now, my pc think's the monitor is different. Anyways I was thinking well whats the best for gaming DP or HDMI?

[Enderman]

There is literally no difference unless you're trying to do 8k or 4k or something like that.

[Electronics Wizardy]

Use display port if you can. 

[Glenwing]

I'm kinda confused on what the question/problem is.