I'm building a new PC and need a recommendation for the Display. I've been using Mac for so long, I'm building a new PC for gaming now. I'm most probably will get a GTX 680 with 2GB RAM, but I need a nice display to not waste it.
1.) Since I'm so used to iMac, I don't want anything less than 27-in 2560 x 1440 display with LED back-lit.
2.) Last PC I had, it used a DVI (dual-linked) port. What do PC use now?
Dell ultrasharps are good. I believe HP and Samsung have equivalents. If you want an especially good deal, there are 27" IPS 2560x1440 monitors for about $300 on ebay. DVI is the most common but some use HDMI and displayport.
The Auria EQ276W is the best option and there's absolutely zero reason to go above the $400 price point to get a nice 1440p IPS display as a result, IMO.
It's the same panel as Apple's Cinema Display, it has all the inputs you could need, it's got HDCP support, it's from a store that will let you return it for even one dead pixel, and you can cover it with a 3 year squaretrade warranty for cheap.
Only downsides to the Auria in particular are the large bezel and the somewhat flimsy stand, though the stand is replaceable with any VESA 100x100 compatible mount/stand.
I also have a very good HDMI cable, is HDMI better than DisplayPort? Is it capable of outputing 2560 x 1440? If I want to use it, both Monitor and Display Card need to support HDMI obviously?
According to Wikipedia, the HDMI 1.3 specification includes support for 2560x1600 at 75hz and 24 bits per pixel. However, many 2560x1600 and 2560x1440 monitors only support up to 1920x1080 via HDMI (if they even have an HDMI input), and video cards may have similar limitations - there is one Asus monitor (the PB278Q) known to support 2560x1440 over HDMI, and it mentions that ATI/AMD cards since the HD 5000 series support HDMI 1.3, but it's not clear whether that includes the higher resolutions. I don't know whether a GTX 680 would support that resolution over HDMI. DisplayPort and Dual-link DVI are more certain to support 2560x1440 resolution.