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Why does Display port and HDMI feel so different?

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Why does Display port and HDMI feel so different?

Postby ayeTop » 10 Jul 2019, 12:18

When playing games on my XL2540 the difference is so huge, but idk which is better input lag wise. I feel better with hdmi but idk if its cause i'm used to it. Also when switching to display port my aim feels a lot faster. Anyone know which is better?
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Re: Why does Display port and HDMI feel so different?

Postby Chief Blur Buster » 10 Jul 2019, 12:27

HDMI and DisplayPort can have different latencies. In an ideal world, the latency difference is tiny.

However, I have seen situations where one of the ports have one-frame-less latency because of a different processing pipeline or different chip being used for that port. It's an annoyingly little-tested part of gaming monitors -- the latency differences of different video ports. It can be sub-millisecond but it can be very huge (multiple milliseconds).

Choose the port that feels better for you. When there's a latency difference happening, it is usually DisplayPort has tighter latencies than HDMI -- I'm assuming you're pushing both ports to their full 240Hz.
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Re: Why does Display port and HDMI feel so different?

Postby A Solid lad » 07 Sep 2019, 02:45

I thought I was the only one... so I didn't mention it.
They also feel different for me.
I also feel like I play better with HDMI, even AMA seems a bit stronger on it.
DP feels smoother, but more sluggish.
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