I currently have a DELL U2713HM monitor with a Max resolution of 2560 x 1440. What DELL doesn't mention on their website is this resolution is only supported via DVI-DL and DisplayPort.
The max HDMI resolution for the U2713HM is 1920 x 1080 @ 60fps. You can force the monitor to accept HDMI at 2560 x 1440 @ 30fps but it looks rubbish (at least from my graphics card).
Due to in wall cabling I may need to hook up my computer to a monitor via HDMI, does anyone know if the DELL U2713H can display 2560 x 1440 @ 60fps via HDMI without any hacks?
Note: The cables I have are HDMI 1.4 so they support this resolution. There are also other monitors out there that support 2560 x 1440 natively by HDMI (http://www.asus.com/au/Monitors_Projectors/PB278Q/#specifications)