Page 2 of 5 FirstFirst 1234 ... LastLast
Results 11 to 20 of 41

Thread: 13-Way Radeon Graphics On Ubuntu 14.04 LTS

  1. #11
    Join Date
    Aug 2012
    Location
    Pennsylvania, United States
    Posts
    1,892

    Default

    Quote Originally Posted by DarkFoss View Post
    I agree somethings wrong with the test set-up the numbers are way off on the R7 260x. It's last generation comparable card is the HD 7790. There is no way that the 260x should be out performed by the much older 6450, which isn't even a gaming card in most peoples eyes. Even an R7 260 non x would have a hard time putting up such pitiful numbers.
    Obviously something is wrong, its probably just not getting DPM enabled for some reason and therefore running at the lowest possible clockspeeds it supports.

    *Whispers* Maybe someone messed up a goto? >.>

  2. #12
    Join Date
    Oct 2007
    Location
    Toronto-ish
    Posts
    7,458

    Default

    Yeah, the numbers seem low even for dpm being disabled and the GPU running at low boot clocks.

    I don't know for sure if the 14.04 kernel picked up the 3.14 patches to fix and enable dpm on CI parts (Kabini, Kaveri, Bonaire, Hawaii) but something sure doesn't seem right.

  3. #13
    Join Date
    Aug 2012
    Location
    Pennsylvania, United States
    Posts
    1,892

    Default

    Quote Originally Posted by bridgman View Post
    Yeah, the numbers seem low even for dpm being disabled and the GPU running at low boot clocks.

    I don't know for sure if the 14.04 kernel picked up the 3.14 patches to fix and enable dpm on CI parts (Kabini, Kaveri, Bonaire, Hawaii) but something sure doesn't seem right.
    Bridgman, isn't the A10-7850k a R7 260? Would that also be unusually slow?

  4. #14
    Join Date
    Dec 2007
    Posts
    2,371

    Default

    Quote Originally Posted by Ericg View Post
    Bridgman, isn't the A10-7850k a R7 260? Would that also be unusually slow?
    The A10-7850k is a Kaveri. the R7 260 is a Bonaire. Both have the same 3D engine on them, but neither should be unusually slow with kernel 3.14 or newer where dpm is enabled. None of my bonaire or kaveri systems are that slow.

  5. #15
    Join Date
    Mar 2012
    Posts
    43

    Default

    I'm still having problems with the frame rate dropping over time issue with my 7790. I found that if I alt-tab out of fullscreen and go back in again the frame rate goes back to a smooth 60. But once again over time drops down. I can do this twice or three times before it no longer works. I'm sure they're working on it so just gotta sit tight.

  6. #16
    Join Date
    Feb 2011
    Location
    France
    Posts
    197

    Default

    If I believe the data on Wikipedia and x.org RadeonFeature web page:

    the Radeon R7 260X (codenamed BONAIRE) is just an overclocked version of the Radeon HD 7790.
    the Radeon R7 265 (codenamed PITCAIRN) is just a slightly overclocked version of the Radeon HD 7850.

    Both use the radeonsi mesa driver.

    If I have to buy one, I would definitively take the R7 265 (more shader cores and a 256-bit VRAM bus).
    Last edited by whitecat; 04-04-2014 at 02:05 PM.

  7. #17
    Join Date
    Dec 2007
    Posts
    2,371

    Default

    Quote Originally Posted by Spectre View Post
    I'm still having problems with the frame rate dropping over time issue with my 7790. I found that if I alt-tab out of fullscreen and go back in again the frame rate goes back to a smooth 60. But once again over time drops down. I can do this twice or three times before it no longer works. I'm sure they're working on it so just gotta sit tight.
    I haven't seen this behavior and no one has reported anything similar. Please file a bug (https://bugs.freedesktop.org). Bugs that aren't reported don't often get fixed.

  8. #18
    Join Date
    Aug 2012
    Location
    Pennsylvania, United States
    Posts
    1,892

    Default

    Quote Originally Posted by agd5f View Post
    The A10-7850k is a Kaveri. the R7 260 is a Bonaire. Both have the same 3D engine on them, but neither should be unusually slow with kernel 3.14 or newer where dpm is enabled. None of my bonaire or kaveri systems are that slow.
    Damaged card maybe? Bad vBIOS?

  9. #19
    Join Date
    Feb 2013
    Posts
    327

    Default

    Quote Originally Posted by whitecat View Post
    If I believe the data on Wikipedia and x.org RadeonFeature web page:

    the Radeon R7 260X (codenamed BONAIRE) is just an overclocked version of the Radeon HD 7790.
    the Radeon R7 265 (codenamed PITCAIRN) is just a slightly overclocked version of the Radeon HD 7850.

    Both use the radeonsi mesa driver.

    If I have to buy one, I would definitively take the R7 265 (more shader cores and a 256-bit VRAM bus).
    Do you have any idea how it(the 265) would compare to the nvidia GTX 660 with the binary blob by chance?

  10. #20
    Join Date
    Feb 2008
    Location
    Linuxland
    Posts
    5,105

    Default

    Quote Originally Posted by Ericg View Post
    Damaged card maybe? Bad vBIOS?
    Not damaged, given it was running the blob flawlessly yesterday: http://www.phoronix.com/scan.php?pag...0_source&num=2

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •