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gdgt runs the numbers on Retina display sizes

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Apple fans have been oohing and ahhing since the MacBook Pro with Retina display was announced a few weeks ago. Let's face it, the display looks incredible! With Retina displays starting to make inroads into the world of Mac, gdgt's Ryan Block decided to take a look at what screen resolutions would be required on the rest of the Mac line to achieve a pixel density similar to that on the new MacBook Pro.

What Block did was to figure out the current pixel density and size of Mac displays, then figure out what it would take to approach the 220 pixel per inch (PPI) display on the Retina display MacBook Pro. It's not just a doubling of pixel density; Block noted that the 11" MacBook Air already has a 135 PPI display that wouldn't need to be doubled to achieve Retina quality.

Block's results are fascinating:

13" MacBook Air
Current Resolution: 1440 x 900, Estimated Retina Resolution: 2560 x 1600

13" MacBook Pro
Current Resolution: 1280 x 600, Estimated Retina Resolution: 2560 x 1600

11" MacBook Air
Current Resolution: 1366 x 768, Estimated Retina Resolution: 2200-2300 x 1200-1300

27" iMac and Thunderbolt Display
Current Resolution: 2560 x 1440, Estimated Retina Resolution: 5120 x 2880

21.5" iMac
Current Resolution: 1920 x 1080, Estimated Retina Resolution: 3840 x 2160
(Block thinks the 21.5" Retina iMac would get a bump above that resolution)

Of course, this is all pure conjecture. What do you think? Will Apple introduce Retina displays across the Mac product line in the foreseeable future? Let us know in the comments.

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