[NAME]  G-Sync won't work for outputs controlled by the Intel GPU. It also requires DisplayPort protocol.  A USB-C source port can work for the latter requirement since USB-C uses DP protocol natively, as long as you don't switch it to HDMI later, but again in your system's case it wouldn't work because the Intel GPU controls the output.I'd recommend USB-C to DP simply because again, the USB-C port uses DP video output anyway.  A USB-C to HDMI adapter/cable has to incorporate an active signal converter chip to switch that signal to HDMI, which is unnecessary additional complexity and I've seen it cause interoperability issues before.  Keep it simple.Yes, a converter to switch an HDMI signal to DisplayPort is an active device, and they are fairly expensive.  But that won't really get you anything useful.  That's designed if you have a source device that only has an HDMI output and you need to connect to a display that only has DisplayPort or something.  There are also active converters to switch DP signals to HDMI, but those are less common because actual DP outputs often support the optional but widely implemented Dual Mode DisplayPort (DP++) feature, which allows a DisplayPort output to send a native HDMI signal itself.  But USB-C ports don't allow that.  And HDMI outputs do not have an equivalent capability to send a DisplayPort signal.A USB-C multi-purpose device that does video output and also offers other functionality such as Ethernet and USB ports will cut video bandwidth in half unless those other functions are limited to USB 2.0, but that would of course bottleneck Gigabit Ethernet as well as USB 3.x.  If you want to maximize video bandwidth available, you'll need to use a basic USB-C to DP cable/adapter and use USB-A for everything else.  I wrote a post about the various operating modes of USB-C and Thunderbolt here if you want to know more about this.
Hello, when connecting 240hz monitor to XPS's HDMI output I can only get 60hz (intel's graphics card). Is there any way to get 1920x1080 @ 240hz for second extended display? I guess this output can only be controlled by Intel's and not by Nvidia graphics card. Would USB-c output connected with USB-c/DP cable help?   Thanks!
xps 15 oled 2020 and hdmi output with1920x1080 @ 240hz