Macbook Pro Corsair 4GB Ram

Discussion in 'MacBook Pro' started by pcdemon, Apr 15, 2008.

  1. pcdemon macrumors newbie

    Feb 5, 2008
    Hey All

    I just purchased the low latency ram by Corsair. I know there has been some discrepancy's over the added performance as Corsair shows stats from the older and slower mac's. If anyone with a 2.5ghz Penryn Macbook Pro has the crucial ram or the other low latency ram could you please post your benchmark stats please when I get the ram I will run the same test (please post software used) so that everyone can have a legit comparison.

    Results 157.83
    System Info
    Xbench Version 1.3
    System Version 10.5.2 (9C7010)
    Physical RAM 2048 MB
    Model MacBookPro4,1
    Drive Type Hitachi HTS542525K9SA00
    Memory Test 157.83
    System 175.36
    Allocate 213.27 783.18 Kalloc/sec
    Fill 152.84 7431.55 MB/sec
    Copy 170.18 3514.98 MB/sec
    Stream 143.48
    Copy 138.86 2868.15 MB/sec
    Scale 135.29 2795.04 MB/sec
    Add 150.61 3208.34 MB/sec
    Triad 150.48 3219.11 MB/sec
  2. pcdemon thread starter macrumors newbie

    Feb 5, 2008
    Freshly Installed Corsair Low Latency 4gb

    Results 168.88
    System Info
    Xbench Version 1.3
    System Version 10.5.2 (9C7010)
    Physical RAM 4096 MB
    Model MacBookPro4,1
    Drive Type Hitachi HTS542525K9SA00
    Memory Test 168.88
    System 186.87
    Allocate 312.55 1.15 Malloc/sec
    Fill 148.94 7241.70 MB/sec
    Copy 162.85 3363.68 MB/sec
    Stream 154.05
    Copy 145.62 3007.81 MB/sec
    Scale 144.00 2975.08 MB/sec
    Add 164.20 3497.74 MB/sec
    Triad 164.89 3527.34 MB/sec
  3. DJJONES macrumors 6502

    Mar 9, 2008
    Newengland usa!
    i see larger number but does that mean faster? or slower???

    what was the price of the memory kit you bought?
  4. pcdemon thread starter macrumors newbie

    Feb 5, 2008
    The memory does show to be a bit faster I ended up paying 148.90 shipped. The Ram was 122.91 + shipping. from
  5. barefeats macrumors 65816


    Jul 6, 2000
    Corsair has published a "white" paper showing their new low (CAS 4) latency 4GB memory kit (2x2GB) for MacBook Pro and other Apple laptops running Photoshop 20% faster than a normal (CAS 5) latency 4GB kit.

    We ran our own set of benchmarks with the Corsair memory including Photoshop, Compressor, and After Effects "stress" tests. The average advantage with the low latency memory was 1%. (We tested on a "Penryn" MacBook Pro 2.6GHz.)

    We ran a 64 bit, multi-core version of STREAM. It was a consistent 6% faster with the low latency memory.

    We never saw anything approaching the 20% claim of Corsair for real world apps.
  6. amoda macrumors 6502a

    Aug 9, 2006
    So is a score boost of 11 worth $150? I'm not sure how much "real world" difference 11 points do.
  7. MBHockey macrumors 68040


    Oct 4, 2003
    New York
    Seems like a crock to me ;)

    here's my 4gb of regular crucial ram score:

  8. amoda macrumors 6502a

    Aug 9, 2006
    Maybe the difference has to do with you having a 3,1 MBP while he has a 4,1?
  9. scott9s macrumors member

    Feb 27, 2008
    I have the low latency g.skill memory.

    see attachment for results.

    should also say I have a 2.6 GHz Penryn MBP.

    Attached Files:

  10. jboyd122 macrumors newbie

    Dec 19, 2007
    Sounds like a crock to me. I had the Corsair low latency RAM on a desktop PC I built a few years back and I can surely say it is in my opinion that the performance gains claimed are not apparent. I'm running 4GB of Crucial RAM in my 2.5 Penryn MBP. Results are from XBench.


    Attached Files:

  11. TBi macrumors 68030


    Jul 26, 2005
    Remember the low latency only helps if the laptop actually runs at those lower latencies. If it still tries to run the memory at standard slower latencies then you won't see any gain.

    You should try running CPU-Z in windows to see the actual memory latencies.
  12. e12a macrumors 68000


    Oct 28, 2006
    I too have G.Skill CL4. i only paid somewhere around 90 for it and have had no problems! Geekbench score is higher than many other 4GB RAM MBPs on their leaderboard.

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