Is there any benefit to Display port over HDMI in input lag or response time?

[gameinn]

I just got the Dell Alienware AW2521HF to tide me over till I see when the Viewsonic monitors come out.

Is there any benefit to using HDMI over Display Port for 240Hz? I hear G-Sync only works on Display Port but if I don't care about that stuff is HDMI better in anyway?

[speancer]

No, there is no benefit whatsoever, DisplayPort is objectively better for PC.

[sk1p]

I had AW2518HF with HDMI in box, then I bought display port cabel just for test, there wasn't difference.

[Chief Blur Buster]

Versions are more important than the port type.

For example
- old HDMI versus new DisplayPort
- old DisplayPort versus new HDMI

[slaver01]

Versions are more important than the port type.

For example
- old HDMI versus new DisplayPort
- old DisplayPort versus new HDMI

HDMI 2.1 vs DP 2.0? which advice? (no gsync) 1920x1080

[Chief Blur Buster]

It's really only relevant for things like 5-10 year differences such as DP 2.0 versus HDMI 1.2 .... Where one display is using a port tech 5+ years older than the other.

Also, HDMI/DP transceiver quality matters a lot -- as well as the scaler processing attached to them -- faster processing of display micropackets in a more jitter-free manner at lower lag to tinier scanline buffers instead of full frame buffers.

And sometimes refresh rate support is hamstrung due to either transceiver limits or older cable -- e.g. lower Hz on the HDMI than DP. But many newer models of 240Hz monitors now can do 240Hz on both HDMI and DP.