No obvious bottlenecks, but fullscreen HD videos choppy

The Problem: When I watch a high quality video (720p+) in full screen, the video becomes very choppy. The audio works fine. I've done a lot of troubleshooting and testing out advice on the net, and the issue still persists.

Some Facts:
OS: Windows 7, Home Premium, SP1
Processor: Intel Core i7 2600 CPU @3.40GHz, 4 core
RAM 8 GB
Graphics: GeForce GTX 550 Ti, NVIDIA
asus p8z68-v pro MOBO
850W PSU
Internet connection is very reliable and fast. I get 50up and 50 down on average, and never drops below ~43 Mbps. The videos/stream are always buffered well ahead of the playback, so this is not the issue.
EDIT: CPU load is 14%, GPU load is 38% during a choppy video/stream.

Some things I have tried, that have NOT solved the problem:
- Updating drivers/Flash
- Disk Cleanup
- Defrag
- Anti-virus software
- Enabling Hardware acceleration
- Disabling hardware acceleration
- HTML5 Videos have the same lag
- Tried multiple browsers (chrome/firefox/IE)

I may have forgotten things I have tried, but the problem persists. If you have any solid advice, I will take it. Thanks :)
11 answers Last reply
More about obvious bottlenecks fullscreen videos choppy
  1. nibirue said:
    The Problem: When I watch a high quality video (720p+) in full screen, the video becomes very choppy. The audio works fine. I've done a lot of troubleshooting and testing out advice on the net, and the issue still persists.

    Some Facts:
    OS: Windows 7, Home Premium, SP1
    Processor: Intel Core i7 2600 CPU @3.40GHz, 4 core
    RAM 8 GB
    Graphics: GeForce GTX 550 Ti, NVIDIA
    asus p8z68-v pro MOBO
    850W PSU
    Internet connection is very reliable and fast. I get 50up and 50 down on average, and never drops below ~43 Mbps. The videos/stream are always buffered well ahead of the playback, so this is not the issue.

    Some things I have tried, that have NOT solved the problem:
    - Updating drivers/Flash
    - Disk Cleanup
    - Defrag
    - Anti-virus software
    - Enabling Hardware acceleration
    - Disabling hardware acceleration
    - HTML5 Videos have the same lag
    - Tried multiple browsers (chrome/firefox/IE)

    I may have forgotten things I have tried, but the problem persists. If you have any solid advice, I will take it. Thanks :)


    What is the processor load and GPU load when you are watching this?
  2. CPU load: 10 - 18% usage

    Not sure how to check GPU load, though if you could tell me how I'll post it.
  3. I would download and try GPU-Z and see if your video card has any problems.
  4. Yeah, GPU-Z would be what I would try.
  5. How can I know if there is a problem from GPU-Z? I've just downloaded it.
  6. What does the load and temperature say?
  7. ahnilated said:
    What does the load and temperature say?

    Temp: ~35C
    GPU Load: ~35%
  8. try this
    update flash to the latest version.
    http://www.adobe.com/go/getflashplayer

    adjust the amount of data that is stored by flash on your pc.
    http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager07.html

    flush stored data out of flash.
    click start > control > double click the flash icon > under local storage setting clcik delete all
  9. the great randini said:
    try this
    update flash to the latest version.
    http://www.adobe.com/go/getflashplayer

    adjust the amount of data that is stored by flash on your pc.
    http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager07.html

    flush stored data out of flash.
    click start > control > double click the flash icon > under local storage setting clcik delete all


    It's too early to claim complete success, but it appears the problem is gone away. I'll update the OP after I test out a few other sites and qualities. Thanks for the help.
  10. Streaming on twitch.tv was working fine but the youtube videos are still choppy.
  11. Have you tried other sites?
    If yes, does the issue stiil persists?
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