With the rumours of NX being around the same power as an Xbone, I can imagine the battery life for such a device is going to be absolutely dire, unless of course there is a cut down version of the hardware in the base device present in the handheld portion of the console designed for running the same game at a lower res, say 720p instead of 1080p.
THIS can be the only logical solution for a truly hybrid system.
Like someone said a few messages before you,
there is 0% chance that Nintendo has been able to put Xbox one levels of performance in something that can fit in your pocket,IMPOSSIBLE.
Whilst the rumors of having a single device that you can plug a dongle into any tv or monitor and stream from is an amazing idea ,the tech just doesn't exist to deliver X1/PS4 types of games in that format atm.
Nintendo is going to have to, in addition to a portable unit, have a base to pump out 900p/1080p to the main tv and the portable is going to have to use a screen similar the the Ps vita's i.e 960x544, which is around 0.5 million pixels.If the NX base station ends up being on par with the Xbox one at around 1.31TFLOPS then the portable unit,with a screen resolution 1/4 that of 1080p, will at minimum need to pump out about 330GFLOPS.
Given that the snapdragon 820 according to
http://kyokojap.myweb.hinet.net/gpu_gflops/ can pump out around 400Gflops
THIS IS THE ONLY POSSIBLE SCENARIO Nintendo can make work,that is,if the handheld and home console are suppose to play the same games.
Here are my predicted specs for such a console/mobile combo:
Handheld:
14nm lpp Soc
4 Puma+ cores at 1.0-1.6 Ghz
6gb 64-bit LPDDR4X 3200-4266mhz (25.6-32gb/s)
384 (6 CN) GCN Polaris SP's running at around 400-450mhz
Single 4.5-5" LCD running at qHD (950x540/544)
Console Base:
14nm lpp Soc
8 Puma+ cores @ 1.6ghz
8gb 192-bit LPDDR4X 3200-4266mhz (76.8-96gb/s) - Given that GCN Polaris also has Memory Compression that isn't present in XONE/PS4's GCN 1.0,Nintendo can save anywhere 40-45% bandwidth,thus negating the need for Xbox one's ESRAM.
768 (12 CU) GCN Polaris SP's @ 800-900mhz
HDD NOT STANDARD - Reason being Game carts have near instant seek times and would load games alot faster than the slow xbox one hdd drive anyway,
NO ANNOYING GAME INSTALLS HALLELUJAH! Obviously Nintendo will support HDD probably much the same way the Wii u currently does for people with large digital libraries.
I've given the handheld less ram as i would not expect it to have all of the features and multitasking abilities that the Base will need,thus it's os will have significantly less reserved ram,1gb vs 3gb for the base as an example.
Both Consoles will need to be able to access the same Game cartridges for the whole idea of playing at home and taking your game on the move to work,i'd guess that the majority of games will ship on 16-32gb carts with the odd exception shipping on 64gb carts.
If what i predict comes true then Nintendo will have too either have 2 sets of art assets on each cartridge to cater for both systems or when you insert the game cartridge into the handheld unit,a string of code will trigger the mobile mode and the same assets will compress for the qHD screen.
As someone who is predominately a portable gamer I'm more excited over this concept than of anything that has happened in the gaming space thus far,true current AAA title portability,the Vita kinda tried to do this with it's ps4 game streaming over the net,but in reality when you leave your home it fails miserably and even in the home depending on your network setup it can often provide a sub optimal experience.
The only caveat i see with my prediction are games that will run on the base unit at 900p,they will either have to display at a sub-native resolution on the handheld (like some Graphically intense Vita games do A.K.A Uncharted) or suffer some fidelity and/or framerates,unless Nintendo got early access to Samsungs 10nm Tech,in which case the NX handheld could run a good 30% faster and have no problem with such titles,a stretch but possible,but hey it will still be by far the most capable mobile gaming device native or sub native resolution
The Only Major ??? about all this is that what if someone downloads a game to the NX's Base unit HDD or Sd card,or someone else buys and downloads a title onto his NX handheld unit's SD card,they need to make it easy to transfer and move games between both systems for those who won't but physical cartridges.
Would love to hear people's comments on this,i think I've thought this out pretty well through XD