Digital Foundry: Hands-On with Nintendo Switch

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Ganoncrotch said:

curl-6 said:

In games like Mario Kart 8 and Splatoon where the second screen only showed a 2D image or a mirror of the TV screen, the processing cost is minimal. Only in games like Starfox Zero that draw 3D graphics to both screens is the performance hit signficant.

Minimal sure, but still not non existant, I'm sure there is some part in the wiiu similar to the chip set in the ps4 which handles the streaming to the Vita which would handle to compression and transmission of video to the WiiU tablet, again it isn't going to be a big impact, but it is all processing which the Switch wont need to worry about while playing the ports of those games.

I'm pretty sure those functions on Wii U had dedicated silicon and so didn't compete for resources with general graphics processing. Overall, its such a small hit that its really not significant in the grand scheme of things.