Not sure if I have the money for a new monitor right now lol. I found an active DP port to HDMI on amazon and someone in the reviews said they were able to achieve 144hz@2560x1440.
Link: DP to HDMI Cable 6ft, CableCreation Passive DisplayPort to HDMI Cable DP1.2 Gold Plated DisplayPort to HDMI Adapter Male Cable, 4K X 2K & 3D Audio/Video Converter, Black Color : Amazon.ca: Electronics