I have a pc which is using Msi Gtx 670 OC Edition, I also own a Sony ps4 pro. I was planning to upgrade my monitor from 24 inches to 27 inches preferably 4k so that I can hook my ps4 pro to it. Samsung LU28R550UQW is the model I am planning to upgrade. If I connect my ps4 pro through Hdmi 2.0 on the monitor and gtx 670 through Display port 1.2 also on the monitor can I expect the monitor to work properly when using pc? The 4k monitor has refresh rate of 60hz, and since Gtx 670 is connected through DP cable 1.2, suppose I game at 1080p or even 1440p the refresh rate may get varied maybe more than 60hz. Can I go ahead and purchase the monitor?