The next Nintendo Handheld needs to be more powerful

[JEMC]

I'm not really that bothered by the screen's resolution for the NX handheld. Wii U's Gamepad has a 480p-6.2" screen and games on it look gorgeous, so if Nintendo decides to go with a 480 or 540p on a 4 or 5"(max) screen on the handheld, it wouldn't be a big problem.

Their New 3DS already has a Quad Core ARM chip, so it would be very surprising if they don't go with something better than that for its new device. With that I don't mean going with an 8-core processor but with a better and probably faster 4-core one.

The GPU part can be tricky. If Nintendo wants to have a "unified ecosystem" between the home and handheld devices, sharing something more than the OS and Account System would be interesting, and since going for an x86 processor wouldn't be good for a handheld (they are too power hungry compared to an ARM processor), sharing the GPU architecture would be their best option. Given that AMD will likely be in charge of the hardware of the home console and knowing that they are working on an APU with an ARM processor, it's not too far fetched to believe in Nintendo doing exactly this.

I hope Nintendo goes with 2GB of RAM, but I don't think they'll go with more than 1GB. Even the improved New 3DS has only 256MB plus another 10MB of VRAM!

Battery life is something that has to be improved. Period. The autonomy of a handheld should be more than a couple of hours.