Question USB-C 3.1 with DP support

[jupinojup]

Hi, I want to ask, if bandwith of USB-C with DP 1.2 support is limited by 10 Gbps or if it is 17.28 Gbps like normal. I wanna use this port to connect my laptop to my 1440p 144hz monitor and I want to use all adventages of DP (gsync). I can also use HDMI 2.0 if this doesnt work. My laptop is Lenovo Legion 5P - 15IMH05H.

Thanks for help

 

[Glenwing]

It is 17.28 Gbit/s.