Alright gents, this was posted randomly on another forum, and I absolutely cannot find where it came from. If anyone can find the original source, please let me know. I am not trying to start another 'X1 vs PS4' fight. If anyone can confirm/deny any of this please do. Otherwise here it is (could be total BS either way):
"This was true of DX 11.2 as well. Neither the PS4 nor any product currently available for either NVidia or AMD supports the full tiled resources stack. AMD supports a tiny subset of it. NVidia looks more interested in brute force approaches with GPGPU. The X1 ~appears~ to be the only device that supports the full range of tiled resources."
"Anyhow, D3D 12 looks like it is fundamentally a first level of Reyes rendering system, and they are pretty clearly killing off z-buffer rendering. The tiled resources hardware is needed for the bucketing that happens in Reyes, and the yet to be demonstrated ray trace hard ware in the X1 will be used for lighting the scene."
"So yeah, hardware like the PS4, and every product from either NVidia or AMD is basically obsolete by the DX 12 announcement, as z-buffer is fundamentally incompatible with Reyes."
"DX 12 (and the Imagination ray trace accelerator) is basically the smoking gun that the PS4 is a hail Mary pass on the part of Sony, as a fundamental shift in how games are rendered is now happening."
"My posts in the lead up to the DX 12 announcement were ~mostly~ correct, I was correct in the shift, just incorrect in where it was going. Looks like Reyes instead of directly to ray trace and that makes a lot of sense."