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The ARM Cortex-A9 Can Beat Out The Intel Atom

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  • phoronix
    started a topic The ARM Cortex-A9 Can Beat Out The Intel Atom

    The ARM Cortex-A9 Can Beat Out The Intel Atom

    Phoronix: The ARM Cortex-A9 Can Beat Out The Intel Atom

    Here's some interesting test results recently uploaded to OpenBenchmarking.org that compares the performance of ARM Cortex A8 and Cortex A9 cores running at 1.0GHz against an Intel Atom N450. All three systems running at 1.0GHz were also running Gentoo Linux. Clock-for-clock, can the latest-generation ARM Cortex-A9 take out the Intel Atom? For the most part, yes.

    http://www.phoronix.com/vr.php?view=17829

  • Pallidus
    replied
    oh man this is sick


    9 CM

    it has hdmi and audio and ethernet

    can you boot these things via usb???

    Leave a comment:


  • gipsyblues
    replied
    What Exactly Is the Point of this comparison!

    As much as, one - for academic purposes- would love to see or read about how different hardware platforms perform at a an arbitrary operating point, it would have been a preferable and beneficial exercise if all these different hardware had been compared using the standard form in which each platform is sold on the market.

    This would have been a more useful exercise for someone needing to make a choice of hardware platform for a pending project
    Last edited by gipsyblues; 09-12-2012, 01:27 AM. Reason: repetition of word

    Leave a comment:


  • ciplogic
    replied
    Originally posted by schmidtbag View Post
    Anyways back to the tests, anyone else find it weird that Atom under 64 bit overall did worse? Any particular reason for that?
    Atom CPUs are in-order designs, which makes as its biggest issues that when it has to access memory, it has to wait for it and it cannot execute speculative other instructions (like other out-of-order designs), so the question most likely is: why on 64 bit it happens to access more memory than on 32 bit.
    AMD64 architecture has more registers, but the address pointers are bigger. So: if the program did not fit well in the CPU registers and the CPU was taxed by the lag of waiting for memory, is most likely that was slower than the same CPU which would not wait for memory, because all data fits in either L1 cache (32 KB) or L2 cache (512 KB).
    This is also why most likely A9 was faster than Atom on those specific programs: A9 is out-of-order design but it has a slow(er) memory bus than Atom has. So most likely the speculative execution will make Atom to advance doing computations, even the CPU has a crippled memory bandwidth, but it could still make computations that Intel CPU simply had to wait.

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  • gururise
    replied
    Originally posted by CFWhitman View Post
    My question is, where's my Cortex A15 based smartbook with open source Mali graphics drivers for Linux? Heck, I'd probably be willing to settle for a Cortex A9 as long as it was unlocked and fully supported under Linux. Well, I can dream anyway.
    ODROID-X is a quad core Cortex A9 board (Samsung Exynos) that is shipping now for $129. It might be what you are looking for.

    Leave a comment:


  • uid313
    replied
    Originally posted by CFWhitman View Post
    My question is, where's my Cortex A15 based smartbook with open source Mali graphics drivers for Linux? Heck, I'd probably be willing to settle for a Cortex A9 as long as it was unlocked and fully supported under Linux. Well, I can dream anyway.
    Imagine it with full hardware documentation, bill of materials list, flowcharts, diagrams, pin out lists, schematics/schemata, EDA/ECAD files, open source firmware, open source hardware, everything...

    Leave a comment:


  • CFWhitman
    replied
    Where's My Cortex A15 Smartbook?

    My question is, where's my Cortex A15 based smartbook with open source Mali graphics drivers for Linux? Heck, I'd probably be willing to settle for a Cortex A9 as long as it was unlocked and fully supported under Linux. Well, I can dream anyway.

    Leave a comment:


  • ldesnogu
    replied
    Originally posted by bachinchi View Post
    That's gonna change with Intel's Valleyview.
    Valley View won't be available before Q4 2013 and seems to target tablets and nettops, not smartphones. I guess Intel will announce another chip based on Silvermont core (the core in Valley View) for smartphones, but they'd better have it earlier, because it doesn't seem Medfiled gained significant traction in the market.

    Leave a comment:


  • bachinchi
    replied
    Originally posted by gururise View Post
    The only problem is that the Intel ATOM series chips don't use Open-Source graphics. Instead we are stuck with the proprietary PowerVR Poulsbo crap. So really, there is no advantage to going x86 on the phone/tablet platforms.
    That's gonna change with Intel's Valleyview.

    Leave a comment:


  • gururise
    replied
    Originally posted by uid313 View Post
    Maybe Intel Atom can get popular on smartphones, tablets and embedded devices anyways.
    All the graphics on ARM are closed source. Then comes Intel with open source Ivy Bridge graphics on Intel Atom? Me like!
    The only problem is that the Intel ATOM series chips don't use Open-Source graphics. Instead we are stuck with the proprietary PowerVR Poulsbo crap. So really, there is no advantage to going x86 on the phone/tablet platforms.

    Leave a comment:

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