Is DP 1.2 enough for 1440p?

Can DisplayPort handle HDR?

The HDR display or TV must support HDR10, and DisplayPort 1.4 or HDMI 2.0 or higher. We recommend displays that are DisplayHDR certified.

Is DisplayPort 1.2 enough for 4K?

DisplayPort 1.2, introduced in 2010, supports video resolutions of up to 4K at a 60Hz refresh rate. It also introduced support for multiple independent video streams (daisy-chaining), higher audio bit rate, and 3D stereoscopic formats.

Can DisplayPort 1.2 do 1440p 165Hz HDR?

Displayport 1.2/1.2a supports 17.28 Gbit/s (Data Rate), and 1440p 165Hz requires 16.3Gbit/s. It's enough to achieve 170Hz. However, it will not support 170Hz with HDR on, or even 165Hz. You can achieve 144 Hz with slightly higher timings with HDR on using 1.2.