I ended up using DP. Have no issues with setting colour to 10 bit and 240hz. Picture looks great.You should definitely use HDMI with that monitor as Display Port 1.4 doesn't have enough bandwidth to operate the display without DSC.
I didn't say it wouldn't run just that it'll use DSC which can have its own set of problems which you can read about here: https://tftcentral.co.uk/articles/loads-of-displayport-2-1-testing-and-updatesI ended up using DP. Have no issues with setting colour to 10 bit and 240hz. Picture looks great.
I'll try HDMI 2.1 when I go on next timeI didn't say it wouldn't run just that it'll use DSC which can have its own set of problems which you can read about here: https://tftcentral.co.uk/articles/loads-of-displayport-2-1-testing-and-updates
I chose to avoid it on mine and would never suggest someone use a connection that requires DSC when there's an alternative.
The connector type doesn't really matter just whether or not the protocol features are supported and whether or not there is enough bandwidth.HDMI is technically better but I use DP simply because I cant notice any differences and I use HDMI for my TV connect.