I think maybe a setup like this could work if possible ...

NX Portable Mode - Runs at 400-500 GFLOPS (equivalent to about 700-800 AMD GFLOPS)

NX Plugged In Mode (Home Play) - Upclocks to 600-800 GFLOPS (can run all games at 720p)

NX + Supplemental Home Dock - Allows all games to run at 1080P + 60 fps.

The way I see it the chip has to consume 8-9 watts max in portable mode. 

Current X1 runs at bit too hot at 20 watts. However a die shrink to 16nm + improvements made by the Pascal architecture could bring that down into the range needed. 

Then Nintendo would need a large battery, the iPad Pro has a 38.8 wH battery ... that would give you almost 4 hours of battery life. 

It would be a huge battery, but on the positive side, batteries are actually quite cheap especially when purchased by vendors. You can buy 10,000 MaH batteries (which would give you about 40 wH) for $25 at retail, the actual cost of the battery is probably half that. 

that's not a real world comparison

that's an AMD DX11 driver vs Nvidia DX11 driver comparison and has no bearing on how games perform on these architectures when coded for very low level APIs

As many pointed out and as RL tests confirm...there is no AMD GFLOPS equivalent, whole OP is based on DX11 benchmarks where nVidia is killing AMD flop for flop.

In DX12 and Vulkan that is not the case.

People seem to be forgetting the ps4 and xbox one are supported by large capacity optical drives and have internal hard drives for good storage. The NX is a tablet with games coming on lower capacity cartridges and no hard drive. The ambition of NX games will be closer to portable games than home consoles for that reason. NX games will not compare to ps4 and xbone for other reasons than just gpu or cpu performance. If Nintendo really do use very large capacity cartridges we will pay dearly for those games and they will be uncompetitive with ps4 and xbone pricing.

The comparison of NX versus PS4 or xbone will be like wii vs 360 and ps3. What few multiformat games the NX gets will be cut down versions.

It might be an impressive and interesting tablet system but will be a poor home console.

Anyway do we really want to go backwards again with Nintendo supporting a weak system that performs below that of established console products with large software libraries and are just being replaced with much stronger home consoles anyway which are massively superior to NX.

It's highly likely the NX will be dead on arrival unless it really has a gimmick that can save it. That gimmick is going to be far more important than Tegra X1 in NX's success.

- Moved to OP.

Try putting your PS4 in your back pack and playing it on the go. 

Or playing Android apps on your PS4. 

There's your "gimmick". 

32GB (and eventually 64GB) is the same size as a Blu-Ray disc too, so I don't think that's that big of a deal. Even the Nvidia Shield microconsole could accept a 2.5 inch HDD inside its casing too. 

I don't know why you think that GPUs inside PS4 and XOne are GCN 1st gen. PS4's GPU (due to number of ACEs) looks like 290X/390X cut in half with 2CUs disabled and XOnes is like 7790/260X with 2 CUs disabled (or 360)...they are all 2nd gen GCN.

So you already have pretty good benchmark for 2nd Gen GCN vs Maxwell - 390X vs 980Ti:

http://www.anandtech.com/bench/product/1746?vs=1715

DX12 are Ashes and Hitman.

Now, it is hardly even debatable that nVidia generally has more efficient architectures (looking at 1070@150W vs 480@150W is pretty much all that is needed), it's just that difference when it's DX12 or Vulkan (which is best we can hope for to see in terms of benchmarks) is not as big as DX11 tests where nVidia usually smokes AMD.

Even though there's lot's of benchmarks proving the OP correct ... everyone else posting here be like

Still, theres quite a bit of time left for NX speculation, and for the sake of science is my responsability to give everyone the most accurate analysis I can (not saying that my analysis will be anything more than BS, but I can still try). I'll analyse this data and update the OP accordingly. Hopefully by tomorow.

PS - To everyone, I wouldn't mind having a few more benches especially from Vulkan.