Max resolution on external display, GTX 680MX

[sergiobaschi]

I'm thinking of buying an external display to my 2012 iMac. Is the 680MX capable of driving a display like the Dell UltraSharp U3415W (3440x1440)? I don't intend to game on the display.

What's the highest resolution the iMac could handle, for external displays?

Thank you for your input.

 

[MacsRgr8]

Take a look here:

Built-in Display: 27" 16:9 Widescreen Native Resolution: 2560x1440
Details: This model has a 27" LED-backlit 16:9 widescreen TFT active matrix display with IPS technology and a native resolution of 2560x1440. Apple also reports that the "cover glass is fully laminated to the LCD and an anti-reflective coating is applied." Previous Aluminum iMac models have the LCD covered by glass. The company no longer reports viewing angle or contrast ratio, however.

2nd Display Support: Dual/Mirroring* 2nd Max. Resolution: 2560x1600 (x2)
Details: *This model can simultaneously support two external displays up to 2560x1600 via Thunderbolt.