iMac Revision B. speedtests

Discussion in 'Macintosh Computers' started by Trout74, May 10, 2005.

  1. Trout74 macrumors 6502

    Joined:
    Feb 3, 2005
    #1
    anyone done them yet? How do they compare to the old Rev A. iMac's and the 2.0GHZ powermacs?

    I checked barefeats already

    trout
     
  2. monty77 macrumors 6502

    Joined:
    Mar 4, 2005
    Location:
    UK, South Coast
    #2
    What utilities are used? I'll bench mine tonight and post the results.

    Adam
     
  3. Trout74 thread starter macrumors 6502

    Joined:
    Feb 3, 2005
    #3
     
  4. Platform macrumors 68030

    Platform

    Joined:
    Dec 30, 2004
    #4
    Not sure but maybe Cinebench :rolleyes: :eek:
     
  5. mactonight macrumors newbie

    Joined:
    May 2, 2005
    Location:
    VT, USA
    #5
    The Xbench website has some of the new iMacs.

    http://ladd.dyndns.org/xbench/ -> iMac (Flat Panel)
    click on the Processor column header to get the new 2GHz machines at the top.

    One thing I've noticed is that all but one of the 2GHz iMacs has significantly slower memory transfer speeds than all of the rev a iMacs that I checked. The one faster one was Necessary's iMac G5 20". Could be 1x1GB ram vs. 2x512MB ram.
     
  6. mactonight macrumors newbie

    Joined:
    May 2, 2005
    Location:
    VT, USA
    #7
  7. Fredstar macrumors 6502a

    Fredstar

    Joined:
    Nov 3, 2004
    Location:
    Near London
    #8
    Some nice improvements over my Rev A iMac 20", getting the Rev B next week :). Especially on the Open Gl stats
    Results 157.21
    System Info
    Xbench Version 1.1.3
    System Version 10.4 (8A428)
    Physical RAM 1024 MB
    Model PowerMac8,1
    Processor PowerPC G5 @ 1.80 GHz
    L1 Cache 64K (instruction), 32K (data)
    L2 Cache 512K @ 1.15 GHz
    Bus Frequency 600 MHz
    Video Card GeForce FX 5200
    Drive Type ST3160023AS


    CPU Test 169.32
    GCD Loop 102.29 3.99 Mops/sec
    Floating Point Basic 284.12 1.03 Gflop/sec
    AltiVec Basic 121.81 3.54 Gflop/sec
    vecLib FFT 195.96 3.04 Gflop/sec
    Floating Point Library 342.39 13.70 Mops/sec

    Thread Test 98.92
    Computation 68.17 920.32 Kops/sec, 4 threads
    Lock Contention 180.20 2.26 Mlocks/sec, 4 threads

    Memory Test 242.91
    System 289.02
    Allocate 527.54 344.11 Kalloc/sec
    Fill 374.88 2984.08 MB/sec
    Copy 171.92 859.60 MB/sec
    Stream 209.48
    Copy 184.82 1351.01 MB/sec [G5]
    Scale 182.05 1343.52 MB/sec [G5]
    Add 237.51 1520.09 MB/sec [G5]
    Triad 251.22 1534.96 MB/sec [G5]

    Quartz Graphics Test 206.75
    Line 176.28 4.49 Klines/sec [50% alpha]
    Rectangle 162.24 11.41 Krects/sec [50% alpha]
    Circle 187.59 4.32 Kcircles/sec [50% alpha]
    Bezier 192.81 2.10 Kbeziers/sec [50% alpha]
    Text 546.53 8.91 Kchars/sec

    OpenGL Graphics Test 174.64
    Spinning Squares 174.64 122.21 frames/sec
    User Interface Test 309.84
    Elements 309.84 99.66 refresh/sec

    Disk Test 94.29
    Sequential 87.54
    Uncached Write 87.27 36.38 MB/sec [4K blocks]
    Uncached Write 64.69 26.49 MB/sec [256K blocks]
    Uncached Read 90.95 14.40 MB/sec [4K blocks]
    Uncached Read 128.51 51.92 MB/sec [256K blocks]
    Random 102.17
    Uncached Write 96.12 1.44 MB/sec [4K blocks]
    Uncached Write 102.36 23.09 MB/sec [256K blocks]
    Uncached Read 95.98 0.63 MB/sec [4K blocks]
    Uncached Read 116.83 24.04 MB/sec [256K blocks]
     
  8. TIGERmac macrumors member

    Joined:
    Nov 12, 2004
    #9
    Quartz 2D Extreme Rocks!

    Obviously, the Rev. B iMac 2.0 GHz test I looked over didn't have Quartz 2D Extreme enabled. My Rev. A 1.8 GHz iMac performed MUCH better on the Quartz test (and has a much weaker graphics card).

    I truly didn't realize how big of a difference Quartz 2D Extreme made until now. Impressive. I'm also impressed that a 200 MHz (66 MHz FSB) higher clock speed would make such a marked improvement in CPU scores.

    The Rev. B appears to be a real winner. It's kind of sad knowing that my Rev. A isn't the fastest on the block anymore, but I don't feel compelled in any way to go out and purchase the latest and greatest. My G5 is no slower today than it was before the Rev. B's came out. It's a G5...it's still blazing fast! :D
     

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