The Test

CPU: AMD Athlon 64 X2 4800+ (2.4GHz/1MBx2)
AMD Athlon 64 X2 3800+ (2.0GHz/512KBx2)
AMD Athlon 64 FX-57 (2.8GHz/1MB)
AMD Athlon 64 FX-60 (2.6GHz/1MBx2)
Intel Pentium Extreme Edition 955 (3.46GHz/2MBx2)
Intel Pentium Extreme Edition 840 (3.2GHz/1MBx2)
Intel Pentium D 820 (2.8GHz/1MBx2)
Motherboard: ASUS A8N-SLI Deluxe
Intel BadAxe 975X
Motherboard BIOS: ASUS: Version 1013 Dated 08/10/2005
Chipset: NVIDIA nForce4 SLI
Intel 975X
Chipset Drivers: nForce4 6.70
Intel 7.0.0.1020
Memory: OCZ PC3500 DDR 2-2-2-7
DDR2-667 5-5-5-15
Video Card: ATI Radeon X1800 XT
Video Drivers: ATI Catalyst 5.13
Desktop Resolution: 1280 x 1024 - 32-bit @ 60Hz
OS: Windows XP Professional SP2

Index Overall Performance using Winstone 2004
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  • Betwon - Tuesday, January 10, 2006 - link

    Edit:
    Ratio is 1.27 only.
  • Betwon - Tuesday, January 10, 2006 - link

    NO.
    It is not 939-pin 175.

    The most important:

    It is the FP performance/64-bit and Linux OS.

    Few people use Linux OS.

    PD820 -- the FP performance of windows/32bit
  • Betwon - Tuesday, January 10, 2006 - link

    P4 better than X2.
    Ratio is the key.

    The ratio below 1.33 -- P4 is behide.
    ratio above 1.4x -- P4 is competitive. Intel 4.26GHz VS AMD 2.9GHz

    For the ratio of intel 820 VS AMD 3800+ 165 170? see the benchmark of spec cpu2000 rates for 2 core 1 chip:
    The float point performance(under windows OS/32-bit):

    PD 820 SPECfp_rate_base2000 29.9 SPECfp_rate2000 30.0
    http://www.spec.org/osg/cpu2000/results/res2005q4/...">http://www.spec.org/osg/cpu2000/results/res2005q4/...
    170(939-pin 2GHz 1MX2) SPECfp_rate_base2000 25.2 SPECfp_rate2000 26.3
    http://www.spec.org/osg/cpu2000/results/res2005q4/...">http://www.spec.org/osg/cpu2000/results/res2005q4/...

    We don't find the benchmark of 165 and 3800+, but we find the benchmark of 175.
    170(939-pin 2.2GHz 1MX2) SPECfp_rate_base2000 26.2 SPECfp_rate2000 27.3
    http://www.spec.org/osg/cpu2000/results/res2005q3/...">http://www.spec.org/osg/cpu2000/results/res2005q3/...

    We don't find the benchmark of both PD and X2/opteron dc under windows OS/64bit, so we can not compare the dual-core float point performance 64-bit directly.

    The test--SPECfp_rate is the most important test for CPU float performance. AMD approbate SPECfp_rate for testing dual-core's FP performance.AMD think it is a fair test.
  • flyck - Tuesday, January 10, 2006 - link

    in my opinion spec scores arent that meaningfull. for example look @ the scores of a P-M and then in real applications.
    It is great for giving a fast overall impression but hardly something to base your overall descission on.


    but i do agree with your ratio you wrote down now.(if you discount ram overclock and others)

    1.33 p4 is slower
    1.4x p4 is competive
    >1.55 p4 is faster

    But in this case : you can overclock that p4 very well but say you overclock them both max with prom or other good cooling devices. you'll have 3-3.3GHz compared to 4.5-5Ghz p4. and i think those are pretty competive against eachother. But still that doesn't convince me in buying that p4. ok it overclocks better but in the end the difference is nothing.
  • Betwon - Tuesday, January 10, 2006 - link

    AMD think spec cpu2000 rates for testing multi-core is very very important.

    And lots of professional and smart person who really know cpu's tech think it is the best benchmark for testing FP/Int performance.

    If you look at some professional articles about how to improve the CPU's performance ac about , you will find that spec cpu is the most important and most frequently used for the standard of performance benchmark.
  • flyck - Tuesday, January 10, 2006 - link

    that doesn't mean it is not a benchmark with its flaws. and if you look @ those scores there are many fluctuations depending on the cpu.

    don't get me wrong, spec is nice to measure performance but has his major flaws to test overall performance or the performance the cpu really will get.
  • Betwon - Tuesday, January 10, 2006 - link

    spec don't measure video card's performance. But it measures the performance of cpu, memory and so on.
    So, it is the most important performance test, and show the performance the cpu really get.

    If you find another more important performance test which can measure the FP/INT performance, please tell us.

    But you can not find it. We can not find it too.

    fluctuations?
    275 is different with 939-pin 175, and it's benchmark is under 64-bit(275) but not under 32-bit(175).
  • Betwon - Tuesday, January 10, 2006 - link

    No. you don't how to understand the tests.

    Yes, X2 win the games, but X2 lose in many tests.(I think that (for games) the ratio need at least 1.5 or more)
    Let's look at the ratio 1.46(4.26/2.9)

    PCMark05 test for CPU
    955 7431
    FX-60 5912

    DiVX6.1
    955 354sec
    FX-60 388sec

    XviD1.1
    955 364sec
    FX-60 380sec

    CS2
    955 98sec
    FX-60 107sec

    Premiere Pro 1.5
    955 163sec
    FX-60 178sec

    FineReader8.0
    955 140sec
    FX-60 160sec

    3D rendering
    3ds max7.0 CPU Render
    955 3.46
    FX-60 3.19

    Maya7.0
    955 40.9sec
    FX-60 41.96sec

    Only one?

    The more accurate ratio will be ?
    Without OC, for most poeple , they will not buy X2@2.4G or X2@2.6G or PD@3.2G or PD 3.46G, they may buy PD820/920 or X2@1.8G or 2.0G(such as 3800+ ,165, 170).
    We can get the more accurate ratio from spec cpu2000 rates for dual-core.
    Note: spec cpu2000 rates is admit by AMD.
    For integer performance,
  • flyck - Tuesday, January 10, 2006 - link

    pcmark05 :roll: overall it is equal between the two.

    DIVX6.1 p4 8% faster
    XVID p4 4% faster
    mp3 ecoding same time
    WME : FX 25% faster
    photoshop : p4 8% faster
    3dsmax interactive : FX 12% faster
    cpu rendering : p4 8% faster
    Maya : equal
    far cry : FX 16% faster
    half life: FX 17% faster

    this is hardly called a victory for p4 ... i would even say overall FX is faster.

  • Betwon - Tuesday, January 10, 2006 - link

    No. you don't know how to understand the tests.

    pcmark05 overall? NO, it will include video card/harddisk benchmark.
    Now let's the benchmark of CPU:

    PCMark05 test for CPU
    955 7431
    FX-60 5912
    Intel faster 25.7%

    About encoding
    DiVX6.1
    955 354sec
    FX-60 388sec
    Intel faster 9.6%

    XviD1.1
    955 364sec
    FX-60 380sec
    Intel faster 4.4%

    CS2
    955 98sec
    FX-60 107sec
    Intel faster 9.2%

    Premiere Pro 1.5
    955 163sec
    FX-60 178sec
    Intel faster 9.2%

    FineReader8.0
    955 140sec
    FX-60 160sec
    Intel faster 14.3%

    3D rendering
    3ds max7.0 CPU Render
    955 3.46
    FX-60 3.19
    Intel faster 8.5%

    Maya7.0
    955 40.9sec
    FX-60 41.96sec
    Intel faster 2.6%

    Except the games, this is hardly called a victory for X2 ... i would even say overall P4 is faster.
    Note: Now , the ratio is 1.46 -- 4.266GHz/2.926GHz

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