NEED HELP Low GPU usage and FPS in CrossfireX

Discussion in 'Videocards - AMD Radeon Catalyst Drivers Section' started by david1006, Apr 29, 2012.

  1. bokah

    bokah Ancient Guru

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    didnt read much of this...

    in xfire anything between 40-80% on each core is normal
    this is how multi gpu systems are.
    in rare cases where devs get they **** right u get both cores above 55% or so
    thats when u see benefits of it

    bad psu can be couse of bad performance, but doubt its case here

    ur prolly having too hard or bad settings on game if ur gpus drop below 45%
    or just cpu bound game
     
  2. xm8z

    xm8z Active Member

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    @ david1006

    so finally u have time to spend here and get good info .The reason i told u to join the great tech forum ! .

    But i must tell u one high-end gpu >>> two mid range in SLI/crossfire , games these days r mainly console ports :p ..... *SAD* .......:bang:
     
  3. xm8z

    xm8z Active Member

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  4. ihatelolcats

    ihatelolcats Member

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    link to one review that says an underpowered PSU can cause graphics card throttling
     

  5. ---TK---

    ---TK--- Ancient Guru

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  6. david1006

    david1006 Active Member

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  7. sykozis

    sykozis Ancient Guru

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    I don't need to link a review. It's called common sense. BTW, it's also how every electronic device functions when underpowered. If not provided sufficient power, no electronics device is going to operate at full speed or with it's full feature set. The card will only work as hard as it can based on the power it's supplied, up to it's full potential. If the lack of power is great enough, the device will shutdown.

    Of course, if you'd like to PM Hilbert and tell him he's lying by listing "bad 3D performance" as a result of insufficient power, feel free.....

    BTW, insufficient power can also cause CPU throttling....

    In both cases the processor (be it CPU or GPU) will only process data to the point that it reaches a power limit. It's not actually throttling, btw. It's reaching a power ceiling. Throttling is a case where a processor (be it CPU or GPU) reduces it's speed.
     
  8. kn00tcn

    kn00tcn Ancient Guru

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    not that normal, unless vsync is on or the engine is acting funny (night races in shift2 for me get stuck at 50/50 usage, & certain angles of crysis 2)

    but for OP, if single is 99%, dual is 40% each, that should mean fps is LOWER than single in that particular game, which would be a problem
     
  9. david1006

    david1006 Active Member

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    Last edited: May 4, 2012
  10. ---TK---

    ---TK--- Ancient Guru

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    Last edited: May 4, 2012

  11. david1006

    david1006 Active Member

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    yeah that's my max budget unfortunately i spend so much money on this computer im broke now :(
     
  12. ---TK---

    ---TK--- Ancient Guru

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    that psu I linked will power that system fine with oc too. 15% promo ends 5/5
     
  13. david1006

    david1006 Active Member

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    I guess i could beg my mom for 5$
     
  14. ---TK---

    ---TK--- Ancient Guru

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    why dont you enter the 15% promo code?
     
  15. david1006

    david1006 Active Member

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    where do you enter the code?
     

  16. ---TK---

    ---TK--- Ancient Guru

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    in your cart when you are logged in to your account
     
  17. david1006

    david1006 Active Member

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    wow really i never knew that thanks a lot man ill buy it now ill let you know how things go.
     
  18. ---TK---

    ---TK--- Ancient Guru

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    np bro enjoy
     
  19. VenoMaizeR

    VenoMaizeR Member Guru

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    Im having the same issue on BF3 Multi 64 maps...2 cards 40-30% usage 35-45fps. 1 card 99% 55-60fps.
     
  20. kn00tcn

    kn00tcn Ancient Guru

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    well in bf3 beta, i noticed SOMETIMES CF breaks if you click into the game too fast, so just let it load as it wants when joining a match

    it could also have been related to needing to restart the browser
     

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