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DF finally has a comparison between 3DS and N3DS, see what all that extra power gets you.
http://www.eurogamer.net/articles/digitalfoundry-2016-nintendo-3ds-vs-new-3ds-face-off
Basically the upgrade compares to going to a 16 core 5.4 ghz ps4 with 16GB memory. Only the GPU stays the same as apparently it was underused yet gets 1.67x increase in vram.
There's apparently 2 games that use it with mixed results.
Hyrule warriors, 20 fps on 3DS, 30 fps on N3DS
Monter hunter 4 ultimate, 30 fps on 3DS circle pad required, 45-50 fps on N3DS with improved textures
And there are a couple exclusives for N3DS like Xenoblade Chronicles.
Existing games do not run any better. (Load faster though and you can use a hack to make some games run faster)
Now is this worth increasing the price of a mid gen slim version for?
The possible power increase for ps4 will be a lot less, no 1440p gaming, no 30 to 60 fps bumps, doubt any dev will bother with specific enhancements for ps4.5 or bring out patches for old games. There is no incentive to do so. Any improvements will be for the OS.
