Quote Originally Posted by Shaggy Hiker View Post
Does it even matter? Are there any games that support resolutions that high, or is this just so that you can have an obscene number of columns in Excel, or something?
Of course, games don't have resolution limits afaik. Even today SSAA is still the best quality anti-aliasing, it's just that it's such a performance hog that it's been replaced by many others.

Say you've got a 1920x1080 resolution and you've got SSAA set to 2x, it would render the game at 3840x2160 and then downscale it to 1920x1080. And as I said, it's absurdly demanding.

With these displays games will actually be rendered at that resolution and displayed on the screen fully -- it'll look even better.
Quote Originally Posted by baja_yu View Post
I seriously doubt they will be using such high resolutions. There's really no point since at standard viewing distances for a computer monitor, the resolution currently in the 27" iMac (and other screens) are pretty close to what would be considered "Retina", meaning the pixels aren't discernable.
Just because you can't see an individual pixel doesn't mean there's no benefit to a higher PPI, I sit 18 inches from my 21.5 inch 1080p iMac and I can still see jaggies on text, images, and especially in games.