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Thread: Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?




  1. #1
    profJim's Avatar
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    Question Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?

    Synthetic memory benchmark scores are irrelevant!!
    Opinions and theory are irrelevant!!


    Assuming that the cpu is overclocked, do higher memory speeds improve real world performance when gaming, encoding or when running other intensive applications?

    Prove it!!
    Include links to reviews or gaming/encoding benchmarks that show how performance is or isn't improved at given cpu speeds where memory speeds are running at 1333MHz speeds and higher.

    The only opinion that might be useful is if you find that the gaming "experience" feels smoother and/or better with higher memory speeds.

    Be specific:
    • Which games or applications perform better?
    • How much better or faster is the specific game or application?
    • How much memory is installed?
    • What brand/model of memory is used?

    If you have questions about memory overclocking, please create a new forum thread, include a detailed hardware list, and ask for help in your thread.
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    Default Re: Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?

    I recently switched the memory in my systems around to get the most out of it.

    Before my APU ran with 1333MHz and the 1090T with 1866MHz modules. However since the APU supports the 1866 and the Phenom II doesn't support more then 1333MHz anyway I switched around.

    On my 1090T system I can't feel any difference, of course .. runs the same speed. But my NAS that now runs with 1866MHz modules does perform a little better on normal windows tasks and fileserving .. at least it feels like it. (Samba, FTP w. FileZilla server)
    Honestly, I didn't expect to feel any difference, so I'm surprised. But it might just be coincidental or the mind playing a trick on me.

    Prolly not as specific as you'd like, but thought I'll give it a reply anyway :)
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    Default Re: Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?

    I think that it's called the placebo effect
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    Default Re: Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?

    yea, most likely :)
    My advice - never visit a short-url, no matter who gives it to you. You can't trust any source at any time when you don't know your target
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    Default Re: Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?

    only in benchmarks you will see the difference imo,not in realworld use, 1600mhz is fine
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    Default Re: Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?

    From your signature, running 16GB of memory at 2133MHz with your 4.5GHz overclock, you don't see any improvement in gaming with higher memory speeds.
    Thanks for your feedback.
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    Default Re: Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?

    haha not that i can tell,
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    Default Re: Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?

    Interesting thread, so ur saying a peep would be better off using 1600mhz as apposed to say like a 2400 mhz?

  9. #9
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    Default Re: Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?

    I'm hoping that others will post details that show whether or not higher memory speeds do or do not improve real world performance when gaming or running other intensive applications when an IB or SB system has a moderately high cpu overclock. Wazza is saying that he didn't experience higher real world performance with higher memory speeds.

    When they come out, all you'll need for maximum gaming performance is two Nvidia 690 cards running SLI
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  10. #10
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    Lightbulb Re: Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?

    A web search using: gaming performance ddr3 memory speed provides some links that help to partially answer the question of how DDR3 memory scaling impacts real world 1155 system performance:

    AnandTech - Sandy Bridge Memory Scaling: Choosing the Best DDR3 (July 25, 2011)
    The Best Memory for Sandy Bridge | bit-tech.net (January 11, 2011)
    Exploring the impact of memory speed on Sandy Bridge performance - The Tech Report - Page 1 (February 9, 2011)

    Links to forum discussions might include some posts with hard data that shows how higher memory speeds might affect real world performance in gaming and other demanding applications. I don't have the patience to read through umpteen pages of opinion and speculation while trying to find hard data that shows how game xyz performs with higher memory speeds.

    One approach that could improve real world performance might be to install a lot of memory in your 1155 system and set up a large ram disk for your TEMP and work/gaming folders to provide maximum read/write performance with minimal latencies. Darkje posted the attached Vertex2/ramdisk benchmarks over a year ago and I included the WD640 4K-aligned CDM benchmark.

    Does DDR3 Memory Speed Really Matter with Ivy Bridge or Sandy Bridge?-cdm-wd640-4k-aligned-ocz-ssd-vertex-120gb-dataram-ramdisk-results-jpg
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