[NAME] The NVIDIA GeForce GTX 1660 Ti has three video ports, one HDMI 2.0b, one DisplayPort 1.4, and one Dual-Link DVI. To use your NVIDIA graphics card just move the HDMI connection to the HDMI connection on the graphics card. See the Setup and Specifications for the location of the integrated ports and the graphics card.
Hi, I have a new XPS 8940, with Intel integrated graphics as well as an NVIDIA GeForce GTX 1660 TI. I've got my monitor plugged into the PC's HDMI port. The only graphics card I've got access to is the onboard Intel (which is fine by the way). I see another hookup on the back of my PC that reminds me of an RGB connection, though I'm not sure that's what it is. I assume that's the connection to the NVIDIA card. Am I correct? How do I change over from the Intel graphics to the Nvidia? If it's a new cable to the card's connection, what kind? Thanks for any ideas.  
Discrete v Integrated Graphics on XPS 8940