XBOX ONE X specifications

Microsoft showed off the newest Xbox console on Sunday during the company's E3 press conference. While most of the key tech specs had been revealed two months earlier (and confirmed by Microsoft), we now have the full details on the upgrade to the Xbox One.

The key detail, of course, is that the Xbox One X and earlier Xbox One consoles will all be able to play the same games. But titles that are "X optimized" will be able to take full advantage of the One X's 4K resolution. (Yes, the One S is capable of 4K and HDR output for videos and 4K Blu-rays, but only HDR for games.)

Of course, Sony has its own upgraded version of the PlayStation 4: the PS4 Pro was released last year.

Here's how both high-end consoles stack up in a side-by-side comparison in the chart below. Just keep in mind that the entry-level models of both consoles -- the Xbox One S and slimmed-down PlayStation 4 -- remain available for as low as $250 to $300 in the US.