T3 Rumors
The NX gimmick. I uh....was told not to post this part by some people. As usual, take it with a grain of salt (although I don't know why I would be warned if it was false) I'm not under any NDA though, and well, it could end up being false. But I was told a variation of this by three different sources. I don't believe they have a reason to lie to me. Here goes....
The NX is going to have a screen controller (whether it's optional or standard I don't know) and can be used anywhere to play your home console games. The controller itself will not have any processing capabilities, it'll essentially be a dummy vita. It'll likely have basic OS functions to access the NX console from anywhere, like a tiny cpu. Nintendo will use enhanced Wii U gamepad streaming tech, and allow the controller to be taken anywhere, connect to the NX console at home (likely through Wi-fi or personal hotspots and the NX console will likely have to be in stand-by mode). Basically, it's remote play built into the box and won't require a $200 add-on to experience it. This is likely what Kimishima meant in his interview with Sankei (
http://www.sankei.com/west/news/1601...030012-n1.html) "different way to play with a dedicated machine" and the whole "new way to experience games" mantra that's been going around Nintendo PR.
Speculation: Nintendo could also sell personal hotspot usb adapters to get internet anywhere and plug either directly into the controller or a wall outlet to not drain the controller battery. The Supplementary Computing Devices may actually be portable hotspot devices with chips in it to boost the quality of the stream. (Maybe the NX will be called the Stream, a speculated final name during the WUST's).
Note: This does not mean there will not be a handheld. This isn't meant to be a replacement for the handheld as there will still be limitations and the controller won't have a full OS or the capability for physical game media (discs or cartridges). The needs of a handheld won't be fully met with this feature. It's just a nice add-on.
T1 Rumors
The NX will use a custom Polaris-like GPU. Likely will be on a FinFET 14nm fabrication node. The source told me it's on the same architecture with heavy customizations of course . It will contain the feature set of Polaris. It is "marginally better than the PS4" and theoretically could be "2x the power of PS4 GPU". I asked about PS4K being rumored to have a gpu 2x as powerful as the OG PS4 and how the theoretical performance of the NX would be and was told "Theoretically it could be close to the PS4K rumored specs". Of course, we know nothing of Polaris or the PS4K specs, but he gave that metric.
I'm going to paraphrase here, but one comment from a source about the power of NX was that "Dev's could port over a PS4 game easily and have power to spare. Even the most demanding ones". My own theory is any game that dips below 30fps on PS4 will likely stay at 30fps on NX and maybe have some enhanced effects.
One feature he highly touted, which improves performance greatly in games, especially graphically demanding ones such as AAA open world games is Primitive Discard Accelerator. A TechGAF member described it as .
So 14nm is still likely in 2016 and Nintendo could still sell it at a reasonable price and not lose too much money or even break even.
tl;dr The NX GPU is using features that are debuting on the Polaris chip, and is therefore heavily speculated to be a Polaris chip, as that would work well in a handheld too and help AMD prove they can make low wattage chips with good performance for small devices. (GCN 1.3, Vulkan, Primitive Discard Accelerator, etc)