I'm fairly confident that it does in processing muscle, even if not in end results. You have to bear in mind that the 3DS is effectively rendering three screens at all time: The touch screen plus two different screen angles for the 3D effect.
And remember, after all, that we are looking at launch titles.
I'm sure the 3D screen has a higher resolution too, otherwise those screenshots would be a lot more jaggedy.
It does. Vix's screenshots are actually the native resolution of the 3DS images, according to Nintendo's specs. 400x240, up from the previous DS's 256x192.
(that said, it's a common practice to show preview screen renders that do not match the actual hardware's output resolution; so wrong reason, right result)
Also on DeviantArt, Rumble, DLive.tv, and the Fediverse (@freespeechextremist.com and @bae.st)