Phenom II On Ice: AM3 Overclocked With LN2

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  • cangelini
    macer1Toms editor should really get his glasses checked. that of find a new job with all the mistakes in this artical..but good to see from AMD.


    Irony?
  • Other Comments
  • xx12amanxx
    Sweet! Not bad for a 3ghz Overclock ehh. Im excited to see what the higher clocked version's will do.
  • accessgranted
    [
    Quote:
    At 5.2 GHz, we were able to run this particular bench at 16 minutes and 36 seconds, compared to over 28 minutes at stock. This is an increase of over 40% in performance.
    It's a 75% (28/16 = 1,75) in performance, not 40%.
  • accessgranted
    Quote:
    For WPrime 32M, we ran all 3 cores at 5.1 GHz and completed the bench at 10.609 seconds versus the stock results of 18.797 seconds. The results under LN2 are 44% faster.
    Wrong again :)
  • JustPlainJef
    No, AccessGranted, you are wrong. If the first one benched at 28 minutes, and it ran OC'ed in 14 minutes, that's a 50% increase. Since it ran in 16:36, that's less than a 50% performance increase. Same with the second one. 18.8 / 2 is 9.4. Benchmark finished in 10.6, which is less than a 50% increase. You are doing the math backwards as you always compare to the original number. 10.6/18.8 = 56% of the original or a 44% decrease in time.
    ;)
  • cangelini
    accessgrantedWrong again


    Formula: (New-Old)/Old*100 ;-)
  • macer1
    Toms editor should really get his glasses checked. that of find a new job with all the mistakes in this artical..


    but good to see from AMD.
  • accessgranted
    If a benchmark takes 2 minutes at default and then 1 minute overclocked that's a 100% increase in performance. 100% increase in performance = 50% decrease in time. It's twice as fast thus taking half the time. It can't be any other way.
  • accessgranted
    Ok, lets say a CPU scales perfect with clockspeed.

    X Mhz:
    Benchmark 1: 20 fps
    Benchmark 2: 20 sec

    2X Mhz
    Benchmark 1: 40 fps
    Benchmark 2: 10 sec

    It's 100% faster -> twice as many fps, half as long rendering time.
  • sohei
    :) hahaha ,,,
    anyway AMD cpu = Velocity Raptor
    the fabrication technology of this cpus is incredible
  • cangelini
    macer1Toms editor should really get his glasses checked. that of find a new job with all the mistakes in this artical..but good to see from AMD.


    Irony?
  • accessgranted
    Alot of the math is wrong. Didn't find any other obvious mistakes.
  • Lozil
    It looks good to see AMD back... But What AMD needs now Is some winner CPU's which can take the crown away from Intel....
  • accessgranted
    cangelini, the formula you wrote is only good for benchmarks where an increase in performance equals an increase in the unit that is measured (fps for example).

    The correct formula to use when an increase in performance equals a decrease in the unit measured is (Old/new)-1 = performance increase in percent
  • accessgranted
    ((Old/New)-1)x100 = performance increase in percent
  • StupidRabbit
    are we going to see something similar with the i7? i mean, is it possible or is there some crazy restriction.. (or something i missed in a different article)
  • foreignalien
    Quote:
    accessgranted 02/10/2009 10:16 AM
    It's a 75% (28/16 = 1,75) in performance, not 40%.

    The operative word is performance. It is a ~75% increase in performance and a ~40% decrease in time. I have to agree, TH got it wrong.

    Numbers aside, awesome test!
  • cangelini
    accessgrantedcangelini, the formula you wrote is only good for benchmarks where an increase in performance equals an increase in the unit that is measured (fps for example).The correct formula to use when an increase in performance equals a decrease in the unit measured is (Old/new)-1 = performance increase in percent


    I'm sorry, you're absolutely right Access. I've edited all of the author's original numbers to reflect the proper percentages. Thanks for the correction!
  • ravenware
    macer1Toms editor should really get his glasses checked. that of find a new job with all the mistakes in this artical..but good to see from AMD.


    You should have your English checked.
  • jcknouse
    This article has me excited to see all of the AM3s when they come out.

    This is making me want to build my first liquid-cooled gaming machine in the fall, which is hopefully when all the manufacturers should have their MBs on the market.

    Nice article, guys.
  • accessgranted
    Quote:
    During the baseline run, AMD's Phenom II X3 720 Black Edition earned a score of 3463. With the processor running at -190 C at 4.5 GHz, we obtained a CPU score of 5262, which is over 34% faster.
    Another error ;). It certainly is more than 34% faster but how much faster? 5262/3463 = 1,52 = 52% faster.