DisplayPort and HDMI are competing technologies used in the electronics industry. Both technologies are capable of supporting high resolution high refresh rate video signals and multichannel audio. The HDMI standard is most widely used in the home theater industry.
It is the most common connection used for connecting devices such as Blu Ray players, AV receivers, and TVs. The ubiquitousness of the HDMI standard means that it can be found on most consumer electronics that connect to either a TV or a monitor.
The DisplayPort standard is more commonly used for connecting PCs to monitors. DisplayPort is most commonly used in professional applications but is also used in the PC gaming industry. DisplayPort has a few notable PC gaming centric features including support for AMD’s FreeSync and Nvidia’s G-Sync.
Unfortunately, no the Xbox Series X does not support DisplayPort. While it is not surprising, it would have been a welcome inclusion for people who want to use a monitor without HDMI support. Instead the Xbox Series X supports HDMI 2.1 up to 4K resolution at 120 Hz refresh rate.
The HDMI 2.1 standard supported by the Xbox Series X is capable of 3840 x 2160 (4K) resolution at 120 Hz refresh rates. This is great and will not pose a problem to most gamers. Most of the benefits offered by using DisplayPort are not applicable to the Xbox Series X anyways.
How to Connect an Xbox Series X to a Monitor Using DisplayPort
If your preferred gaming monitor doesn’t support HDMI there are adapters that can be purchased inexpensively to convert between HDMI and DisplayPort. Just make sure the cable supports both HDMI 2.1 and DisplayPort 1.4.
The Xbox Series X does not include a DisplayPort connection but that will not impact most people in any meaningful way. These are the ports officially included on the final retail release version of the console.