10 Replies Latest reply: Dec 31, 2012 5:04 AM by WZZZ
John H Hutchens Level 1 Level 1 (0 points)

I'm new to iMac, will installing Adobe Flash player have any effect on my IMac's performance?


iMac, OS X Mountain Lion (10.8.2)
  • 1. Re: Adobe Flash Player?
    mende1 Level 10 Level 10 (89,570 points)

    Welcome to the Apple Support Communities

     

    First of all, make sure that you need Flash. Most of the websites now supports HTML5, so you don't have to install Flash. If you need Flash, you can install it without problem.

     

    Generally, Flash causes problems on Macs (principally, overheating and sometimes, kernel panics), so you can install the ClickToFlash extension on the Safari Extensions Store (you can access to it on Safari menu) to use Flash only when you need it

  • 2. Re: Adobe Flash Player?
    Alberto Ravasio Level 4 Level 4 (3,175 points)

    Or download Google Chrome to use exclusively with sites that require Flash Player

  • 3. Re: Adobe Flash Player?
    Rudegar Level 6 Level 6 (19,500 points)

    not as a whole

     

    but running flash in form of videos and games and the likes take a toll

    in terms of performance while it's being don

    mostly because of the poor implementation of the plugin

    same reason why adobe never made a flahs player for ios

    and why they pulled the android player a while back

     

    flash is on the way out even adobe say this but it may be here for a while yet

     

    but just having it installed will not slow your computer down

  • 4. Re: Adobe Flash Player?
    WZZZ Level 6 Level 6 (12,220 points)

    mende1 wrote: Most of the websites now supports HTML5, so you don't have to install Flash.

    I'm not seeing this (running Firefox 17.0.1, maybe not supported) and I'm reading in various places that HTML5 is not really ready for prime time. Do I need to install a separate HTML5 player?

     

    Can you perhaps give me a link to a site where I can try out HTML5.  I'd like to learn more about it.

  • 5. Re: Adobe Flash Player?
    johndaily Level 1 Level 1 (10 points)

    I think you missed the new versions recently. They now use hardware acceleration and the gpu.

     

    As far as performance and battery consumption all tests done on the two technologies html/flash show Flash being WAY ahead.

     

    The only time html5 video is better is if it uses h.264, is not played through the browser but instead downloaded to your machine and ran locally.

     

    But Flash also plays h.264 video, and you can also download it with tools like realplayer and run it locally as well.

     

    So that's a tie.

     

    But more to the point of in the browser video watching, ever since version 10.1 flash pwns html5 video tag. Because no browser maker has yet to allow it acces to the gpu.

  • 6. Re: Adobe Flash Player?
    Alberto Ravasio Level 4 Level 4 (3,175 points)

    WZZZ wrote:

     

    Can you perhaps give me a link to a site where I can try out HTML5.  I'd like to learn more about it.

     

    This is a good example, Snow Fall - The Avalanche at Tunnel Creek

  • 7. Re: Adobe Flash Player?
    WZZZ Level 6 Level 6 (12,220 points)

    Thanks. Just tried it, but found it was using huge amount of CPU, much more than Flash. I thought it was supposed to be less resource hungry. Maybe Firefox isn't ready for it.

  • 8. Re: Adobe Flash Player?
    johndaily Level 1 Level 1 (10 points)

    It's because Flash now uses hardware acceleration, and has access to the gpu.

     

    Browser makers are not willing to let such an open language like html5/css/javascript access to those parts of your system for obvious reasons.

     

    2 years ago, Flash would have eaten up the cpu the same way. But since version 10.1 and Adobe's addition of "StageVideo" and "Stage3D" it runs like butter, using the GPU to render video and 2D/3D graphics while the cpu handles user interface overlays.

     

    If you right click a flash object and click settings you'll see the new check box for enabling hardware acceleration. It's checked by default, but not every piece of flash on the web has been updated to use it yet, but most the popular sites have done so.

     

    Here is a great list of Flash games that use the gpu.

     

    http://gaming.adobe.com/showcase/

     

    You see that Flash runs on ios in app form but Apple won't allow the player to run in the browser.

  • 9. Re: Adobe Flash Player?
    Alberto Ravasio Level 4 Level 4 (3,175 points)

    The following screenshots are the results of loading and executing the page I mentioned with 3 different browsers on an iMac Intel Core i5 2.5 GHz/AMD Radeon HD 6750M GPU.

     

    It doesn't look like it takes too much CPU

     

    001.png

     

    002.png

     

    003.png

  • 10. Re: Adobe Flash Player?
    WZZZ Level 6 Level 6 (12,220 points)

    With Firefox (17.0.1) it was using upwards of 90% CPU. (Mac is 3.06 GHz.)