Is the latest MacBook Pro 13 fast enough to play 4K @ 60 FPS on YouTube?

[simevidas]

On their new TestTube page, YouTube writes:

And if playing 4K videos at 3840x2160 isn't enough to melt your device, try doing it at 60 frames per second.

Is the latest MacBook Pro 13 able to play such videos smoothly? Please note that running videos on YouTube in a browser is more taxing than running them in a program like VLC.

If someone has the latest 2015 model connected to a 4K screen via DisplayPort, could you please test one of the 4K @ 60 FPS videos on YouTube (the video playlist is in the link above).

 

[brdeveloper]

On their new TestTube page, YouTube writes:
Is the latest MacBook Pro 13 able to play such videos smoothly? Please note that running videos on YouTube in a browser is more taxing than running them in a program like VLC.

If someone has the latest 2015 model connected to a 4K screen via DisplayPort, could you please test one of the 4K @ 60 FPS videos on YouTube (the video playlist is in the link above).

Is the YouTube 4K@60Hz really 60Hz or some kind of interlaced streaming? I presume that a consistent 4K@60Hz streaming would need a 50-100Mbps broadband plan, or at least something capable of consistently streaming at 30Mbps.

 

[Anonymous Freak]

It is full 60fps noninterlaced, and a quick test shows it appears to be about 30-50 Mbps. Unfortunately, the machine I'm testing on is too slow to show it at full framerate. (My work PC, slower than the latest MBP.)

Note that the latest YouTube player should use about the same CPU as an offline player. They don't use Flash any more.

 

[dagamer34]

On a 4Ghz Retina iMac connected to an external 4K monitor with the video full screen on a 120 Mbps internet connection, it takes 70% CPU but plays smoothly without stuttering. There is no hardware acceleration of VP9 yet.

Translation: no portable Mac can handle it.