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    Samsung switchable graphics issues

    Discussion in 'Samsung' started by szfamman, Feb 17, 2014.

  1. szfamman

    szfamman Newbie

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    Hi everyone!

    I have a Samsung Series 3 NP370R5E-S01 laptop.
    I played with several games.
    • Battlefield 3 :~50-60 fps
    • DayZ: ~30-35 fps),
    • World of Warcraft :45-60 fps


    Yesterday i rebooted my laptop (usually i just hibernate it, thus the system setup time is always big for me).
    Now comes the interesting part: all of these games lost half of the fps:
    • Battlefield 3 :~20-30 fps
    • DayZ: ~10-20 fps),
    • World of Warcraft: ~20-35 fps

    What happened? The installed amd driver was 13.6 Mobility Beta2. I tried to reinstall the driver, but nothing. I tried several other drivers: 14.1 Mobility BetaV1.6, 13.12 Mobility WHQL, but nothing.

    I opened up GPU-Z and checked the card. Now it is recognised as "AMD Radeon HD 8600/8700M". Last time it was clearly "AMD Radeon HD 8750M".
    And i noticed somthing about the pixel fillrate. Now the maximum is only 3.3 GPixel/s. It used to be >6GPixel/s.
    The Texture fillrate changed as well. It was like 19 GTexel/s, now it's only 6.6 GTexel/s.


    UPDATE: I installed the 12.102 version driver (this is the stock one. it can be downloaded via Samsung SWUpdate). The pixel and texture fillrate was "good" again (pixel: 6.6GPixel/s, texture: 19.8 GTexel/s), but the games' performance was the same (for example WoW: now 25 fps; it should be 45-50).
    Now i have leshcat's 13.8_Beta_1_UnifL, but it's the same as the 12.102.

    Please help me guys to get back the former performance!
    Thanks,
    Tom
     
    szfamman, Feb 17, 2014
    #1
  2. szfamman

    szfamman Newbie

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    No one has this issue, only me? :(
     
    szfamman, Feb 21, 2014
    #2
  3. Dannemand

    Dannemand Decidedly Moderate Super Moderator

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    Hello szfamman, welcome to NBR.

    Maybe you accidentally switched to Silent Mode (Fn-F11) which caps CPU speed and switches to a power saving profile. Use Settings (Fn-F1) to check if you are in Silent Mode.

    You will find much more relevant discussion of switchable graphics and the AMD 7/8000 series in the Ativ Book 8 Owners Lounge (linked below).

    http://forum.notebookreview.com/sam...unge-np770z5e-np780z5e-np870z5e-np880z5e.html
     
    Dannemand, Feb 21, 2014
    #3
  4. yaroman

    yaroman Newbie

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    This worked for me, i was experiencing low frame rate playing DOTA 2 for the past week and couldn't figure out what happened. Thanks for the tip.
     
    yaroman, Apr 21, 2014
    #4
    Dannemand likes this.