This is well known and widely publicized by Apple. They list it as one of the major new features of Safari 7.0 and OS X Mavericks. They had similar charts in the keynote when they announced it.
Safari is more energy-efficient than Chrome and Firefox on OS X
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Re: Safari is more energy-efficient than Chrome and Firefox on OS X
#42This is well known and widely publicized by Apple. They list it as one of the major new features of Safari 7.0 and OS X Mavericks. They had similar charts in the keynote when they announced it.
They even list it as the second featured benefit on their website today https://www.apple.com/safari/
Re: Safari is more energy-efficient than Chrome and Firefox on OS X
#43I'm wondering how much of it is related to the fact that Safari just does less? I'm sure more work needs to be done to make the browser more HTML5 compliant, for example. How much of the HTML5 parts would Safari wouldn't process at all and just ignore them?
Re: Safari is more energy-efficient than Chrome and Firefox on OS X
#44How does that help when Safari is slow and is a memory hog?
Re: Safari is more energy-efficient than Chrome and Firefox on OS X
#45Note that these tests were conducted on a MacBook – presumably running OS X. Apple invested a lot of time optimizing Safari and OS X for low power usage, so it's not exactly surprising that Safari wins in most cases. It would be very interesting the see a comparison with Windows and Linux (if possible on the same hardware).
Hasn't Don Melton discussed in a number of podcasts that Apple places a priority on energy efficiency? Battery life is a key selling point for Apple devices. Chrome's priorities have simply been different.
Re: Safari is more energy-efficient than Chrome and Firefox on OS X
#46No surprises there, Apple controls both Safari and OS X. Microsoft has done the same thing with Edge on Windows 10. Does that mean I use Safari on my Mac or Edge on my Windows 10 machine? No.
Re: Safari is more energy-efficient than Chrome and Firefox on OS X
#47It will be interesting to see how these numbers change with OS X 10.11 with Safari's new Content Blockers enabled. That will result in less network connections and less JavaScript.
Re: Safari is more energy-efficient than Chrome and Firefox on OS X
#48Note that these tests were conducted on a MacBook – presumably running OS X. Apple invested a lot of time optimizing Safari and OS X for low power usage, so it's not exactly surprising that Safari wins in most cases. It would be very interesting the see a comparison with Windows and Linux (if possible on the same hardware).
Wouldn't surprise me if os x is hard coded to display its own apps more favorably. Brings to mind how apple hard coded the wireless signal bars to display better AT&T signal on the original iPhone to boost sales.
Re: Safari is more energy-efficient than Chrome and Firefox on OS X
#49No surprises there, Apple controls both Safari and OS X. Microsoft has done the same thing with Edge on Windows 10. Does that mean I use Safari on my Mac or Edge on my Windows 10 machine? No.
Why not use Safari? I find the UI to be leaner, frugal energy usage as well as being faster in loading many of the websites I normally browse.
The only exception is that I use Chrome when developing.
Re: Safari is more energy-efficient than Chrome and Firefox on OS X
#50I just found out that my laptop has a signicant longer battery life if I use dwb instead of firefox (vimperator). It's a bit crude, but i start to like it.