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DDR3 Memory Scaling Performance With AMD's Athlon 5350

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  • Spittie
    replied
    Originally posted by Imroy View Post
    It's not entirely fair to say the FPUs are "shared". Each dual-core "module" has a 256-bit wide SIMD unit. Each core can execute 128-bit SSE (or 64-bit MMX) instructions independently. It's only shared when executing 256-bit AVX instructions. But considering that software will increasingly use these wide instructions, I suppose it might as well be shared.

    As bridgman alluded to, AMD sees a future where most heavy lifting (especially floating point) is done by the GPU, which doubles as a kind of co-processor. That's been the goal behind APUs, HSA, etc.
    Oh, c'mon, you get what I mean
    The hardware is shared, but obviously a core can use half of it and leave the other half to the other core.
    There is also the scheduler behind that might bottleneck, but I remember AMD claiming to have fixed that with Steamroller.

    I know that this is the current AMD plain, and it's a smart one. I just think that they should have waited until more software was ready for gpgpu, hsa.
    Not that it really matter, as most of the normal workflow is about integers, but still.

    Leave a comment:


  • Imroy
    replied
    Originally posted by Spittie View Post
    Just to point out a little thing, Jaguar has dedicated FPU for every core, while Steamroller/Piledriver have only a shared FPU for every two cores.
    It's not entirely fair to say the FPUs are "shared". Each dual-core "module" has a 256-bit wide SIMD unit. Each core can execute 128-bit SSE (or 64-bit MMX) instructions independently. It's only shared when executing 256-bit AVX instructions. But considering that software will increasingly use these wide instructions, I suppose it might as well be shared.

    As bridgman alluded to, AMD sees a future where most heavy lifting (especially floating point) is done by the GPU, which doubles as a kind of co-processor. That's been the goal behind APUs, HSA, etc.

    Leave a comment:


  • asdfblah
    replied
    Has anyone tried overclocking these systems with TurionPowerControl?
    My first impression of these little systems was of distrust, but they are looking better and better...

    Leave a comment:


  • AJSB
    replied
    Originally posted by dungeon View Post
    Nah sorry , must point out i overlooked that i run 0.8.5 actually and compared it with results of 0.8.8 . So there is no actually any notable gain in games, stable overclock is only 150MHz plus for me that is plus 7% - all in all it is not really something to worry about if your board doesn't have it .
    You must compare results of several games....some might be more affected by this OC than others.

    Leave a comment:


  • dungeon
    replied
    Originally posted by dungeon View Post
    I don't expected this @ 1920x1080 too , but this APU has excelent overclocked performance

    Default = @ 2050 MHz 35.7 fps

    21.0 multiplier and 105 freq = @ 2206 MHz 56.7 fps

    With HyperZ enabled:

    Default = @ 2050 MHz 56.7 fps

    21.0 multiplier and 105 freq = @ 2206 MHz 81.2 fps
    Nah sorry , must point out i overlooked that i run 0.8.5 actually and compared it with results of 0.8.8 . So there is no actually any notable gain in games, stable overclock is only 150MHz plus for me that is plus 7% - all in all it is not really something to worry about if your board doesn't have it .

    Leave a comment:


  • dungeon
    replied
    AJSB asks: yes it runs with the same temperature , but one sad thing is it just allows 21.0 multiplier as maximum .

    So that is it from me about overcloking this athlon i think i couldn't gain more from this hardware an memory , but even that makes excelant difference 20.05>21.0 multiplier and 100>105 freq all stable for me
    Last edited by dungeon; 13 April 2014, 07:17 AM.

    Leave a comment:


  • dungeon
    replied
    Originally posted by dungeon View Post
    With HyperZ enabled:

    Default = @ 2050 MHz 56.7 fps

    21.0 multiplier and 105 freq = @ 2206 MHz 81.2 fps
    Much of performance comes from just +0.5 multiplier adjustment , at default 2050 MHz and just set multiplier from 20.5 to 21.0 = 76.9 fps

    Michael maybe also want to slightly overclock his Athlon 5350 .

    Leave a comment:


  • dungeon
    replied
    Originally posted by dungeon View Post
    Benchmarking Openarena 0.8.8 @ 1024x768 now to see what is gain from this OC and yay these two makes a good performance difference

    Default = @ 2050 MHz 60.5 fps

    21.0 multiplier and 105 freq = @ 2206 MHz 88.5 fps
    I don't expected this @ 1920x1080 too , but this APU has excelent overclocked performance

    Default = @ 2050 MHz 35.7 fps

    21.0 multiplier and 105 freq = @ 2206 MHz 56.7 fps

    With HyperZ enabled:

    Default = @ 2050 MHz 56.7 fps

    21.0 multiplier and 105 freq = @ 2206 MHz 81.2 fps

    Leave a comment:


  • curaga
    replied
    Originally posted by halfmanhalfamazing View Post
    I can't help but be curious (even though the chips appear to be in different classes) how Kaveri and Kabini stack up against each other.

    I have not seen benchmarks out there at all anywhere on this. Maybe I just missed them. If not, might make a good Phoronix article.
    SemiAccurate compared A10-7850k kaveri vs the 5350 kabini:
    http://semiaccurate.com/2014/04/09/a...et-soc-kabini/

    Leave a comment:


  • dungeon
    replied
    Originally posted by dungeon View Post
    Yep APU Multiplier is there and can be set to more then 20.5. I setted it now to 21.0 and that is 50 MHz more. Together with the APU Frequency setted to 105, i running now at 2206 MHz
    Benchmarking Openarena 0.8.8 @ 1024x768 now to see what is gain from this OC and yay these two makes a good performance difference

    Default = @ 2050 MHz 60.5 fps

    21.0 multiplier and 105 freq = @ 2206 MHz 88.5 fps

    Leave a comment:

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