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Safari Technology Preview supports 100% of the ES2015/16/17 features

kangax.github.io

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Re: Safari Technology Preview supports 100% of the ES2015/16/17 features

#121

Earlier quoted context omitted.

Are you aware of the recent improvements in Chrome 53 energy use? Are your numbers before or after this? What was your test methodology, or was this ad-hoc? If there were reliable sources reporting similar numbers it would be easier to swallow, but I can't find a single source that claims it's this bad.

Spotted the Chrome dev.

I don't work for or advocate for Google.

I'm just skeptical about such a massive difference that I've never seen written about, and where only commenters report it, with no methodology, process, or repro steps.

I have a 2012 MacBook Pro with Chrome and anecdotally I don't notice a 3x battery difference with Safari, but I wouldn't make a strong claim about it without some rigor as I mention above.

Re: Safari Technology Preview supports 100% of the ES2015/16/17 features

#122
post #104

Earlier quoted context omitted.

10 hours vs 3 hours for current browser versions, running equivalent tabs/extensions/settings? Sorry but I don't believe you. Can you point to battery benchmarks or is this an off the cuff personal test? Are you talking about an old version of Chrome? You're aware they've been making progress recently? https://9to5mac.com/2016/09/06/google-chrome-mac-battery-per...

You better get to believing, because it is right within the realm of reality. Chrome is _terrible_.

Believing what? I know it's terrible I'm just skeptical its that degree of terrible.

Already other people here are posting different ratios. Its just a loose claim.

Re: Safari Technology Preview supports 100% of the ES2015/16/17 features

#123
post #93

Earlier quoted context omitted.

Are there any normal desktops/laptops that support it? I'd be amazed if anything other than Chromebooks and Android had it.

> Are there any normal desktops/laptops that support it? From what I've been able to find: NVidia Pascal has full hardware decoding for VP9, as does the NVidia GM206. And Intel's (now shipping, but not in consumer hands yet until probably next month, IIRC) Kaby Lake has full hardware decoding support, too. (A lot more existing GPUs have hybrid support, but that's still got a CPU cost.)

Interesting. Given basically everyone but Google is happy with H.264 I'm surprised they would bother.

Re: Safari Technology Preview supports 100% of the ES2015/16/17 features

#124
post #123

Earlier quoted context omitted.

> Are there any normal desktops/laptops that support it? From what I've been able to find: NVidia Pascal has full hardware decoding for VP9, as does the NVidia GM206. And Intel's (now shipping, but not in consumer hands yet until probably next month, IIRC) Kaby Lake has full hardware decoding support, too. (A lot more existing GPUs have hybrid support, but that's still got a CPU cost.)

Interesting. Given basically everyone but Google is happy with H.264 I'm surprised they would bother.

> Given basically everyone but Google is happy with H.264 I'm surprised they would bother.

Well, YouTube alone is something like 1/6 of internet traffic, and probably a sizable amount of the time people spend on the internet.

And everyone besides Google isn't happy with H.264, either. While it's true that Google is the main source of VP9, Netflix 4K is, IIRC, H.265-only (for which hardware acceleration is becoming more common just as it is for VP9).

Re: Safari Technology Preview supports 100% of the ES2015/16/17 features

#125

Earlier quoted context omitted.

Spotted the Chrome dev.

I don't work for or advocate for Google. I'm just skeptical about such a massive difference that I've never seen written about, and where only commenters report it, with no methodology, process, or repro steps. I have a 2012 MacBook Pro with Chrome and anecdotally I don't notice a 3x battery difference with Safari, but I wouldn't make a strong claim about it without some rigor as I mention above.

'Tis the internet! In this case, your experience is everyone else's when it's good, no one's when it's bad.

Re: Safari Technology Preview supports 100% of the ES2015/16/17 features

#126

Honnest question for Safari users: why Safari? I don't really know Safari. I used Chrome on Windows and iOS, and when I moved to OSX I naturally continued with Chrome. And the dev tools are really great.

>I used Chrome on Windows and iOS

Chrome on IOS is really Safari under the covers.

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