I'm planning to use 2x Dell U2515H monitors with my 15" mid-2015 Macbook Pro 2.2Ghz (model number A1398) with Intel Iris Pro Graphics. According to Apple, it can drive:
Dual display and video mirroring: simultaneously supports full native resolution on the built-in display and up to 3840×2160 pixels on up to two external displays, both at millions of colours.
Additionally, the HDMI video output van:
Support for 4096×2160 resolution at 24Hz
Will I be able to drive two of these bad boys at native resolution of 2560×1440?
Best Answer
According to Everymac…
According to Dell..
So, theoretically, both over Thunderbolt > Mini DP
or one over Thunderbolt & one over HDMI at 30Hz