Barring the new display, the hardware inside the iMac Intel 27" Retina 5K Display looks much the same as last year's 27" iMac.

In fact, as we dive in deeper, we realize it is very nearly exactly the same.

We would have documented the logic board removal, but we already have! We'll be following last year's logic board guide—check it out and head back here while we skip ahead.

And after following the guide to the letter, we've got our findings on the differences inside:

The Retina 5K's display data cable is slightly wider—to support those extra pixels.