hdmi to display port

I have recently bought an Acer Nitro 5 AN515-58. I already have an Acer Predator x34 pbmiphzx. I have a usb-c port (full-function thunderbolt 4 and display port) and a HDMI 2.1 port. I have 2 question 1) If I buy a USB-C to DP cable like this one CableCreation 8K USB C to DisplayPort Cable ...

Hello everyone! I have a very specific situation over here and Id appreciatte greatly if someone can point me in the right direction, here are is the main question: what cable do I use to achieve 1080p 120 hz when INPUT IS HDMI 1.4 and OUTPUT can be either DisplayPort or DVID Dual link...

i just bought it, https://www.amazon.com/DisplayPort-Adapter-Converter-Gold-Plated-Compatible/dp/B017Q8ZVWK/ref=sr_1_1_sspa?crid=3OCERGOL2VXEZ&keywords=hdmi+to+displayport+adapter&qid=1550267431&s=gateway&sprefix=hdmi+to+,aps,204&sr=8-1-spons&psc=1 theres the link to it, im using a 1080ti which...