Hi! Could someone with a retina iMac try gaming in 1440p (proper 1440p, not retina mode), and see if the image becomes more blurry/worse than native 1440p in the older iMac models? I game regularly, so having the crisp and clear native resolution image quality is important, but the native retina resolution is not an option because of low framerates. However, some people state that when running half the resolution (ok, a fourth) - then the image should not have the issues of other non-native resolutions (more or less). Anyone? Thanks!