CPU performance: iTunes versus streaming in a browser tab

Marco Raaphorst
Oct 22, 2016 · 2 min read

What will use more CPU power: play music in iTunes or play from SoundCloud in a tab in Safari?

What will use more CPU power: play music in iTunes or play a YouTube music video + slideshow in a tab in Safari?

What will use more CPU power: play music in iTunes or play a HD YouTube music video in a tab in Safari?

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In all 3 cases iTunes is using more CPU power. I am not streaming with iTunes, not using iTunes Music, only use it for playing good old mp3 files, offline.

So streaming files over the internet using SoundCloud or YouTube in a tab is less stressing the CPU. Something I was not expecting. I used my trusty old (late 2013) MacBook Pro Retina running El Capitan.

In all 3 cases I had 4 tabs open in Safari:

  • Google Inbox
  • medium.com
  • melodiefabriek.com
  • either soundcloud.com or youtube.com

So even with 4 tabs open, Safari is a much “lighter” piece of software than iTunes.

Offline versus streaming. Interesting, right?

4 tabs open (incl. Sound Cloud streaming) + iTunes
4 tabs open (incl. Sound Cloud streaming) + iTunes

4 tabs open (incl. Sound Cloud streaming) + iTunes

4 tabs open (incl. YouTube HD streaming) + iTunes
4 tabs open (incl. YouTube HD streaming) + iTunes

4 tabs open (incl. YouTube HD streaming) + iTunes

4 tabs open (incl. YouTube streaming slideshow) + iTunes
4 tabs open (incl. YouTube streaming slideshow) + iTunes

4 tabs open (incl. YouTube streaming slideshow) + iTunes


Originally published at Melodiefabriek.

Marco Raaphorst

Written by

Fool on the hill blowing his guitar — https://melodiefabriek.com

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