GSKILL Ripjaw 2x4GB and 4x4GB sandy bridge kit testing

Discussion in 'Memory' started by youngpro, Jan 11, 2011.

  1. youngpro

    youngpro Member

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    hey guys

    just received a couple kits of the latest sandy bridge gear from gskill, these kits are targeted at working specifically with sandy bridge..

    [​IMG]

    sandy is a bit of a different ram clocker than we are used to with X58 and especially Lynnfield.. as we are locked to small BCLK changed there is not a huge amount of room to move up and down with our overclocking...

    for example on the 2133 ratio you can go from about 1035MHz with low BCLK to about 1111MHz with 105ish BCLK, hopefully in the future we will see more BCLK options to really open up these kits... you wont see any 2400 MHz style ram clocks yet..

    that being said, the bandwidth on sandy bridge is very impressive and we dont really require that huge ram frequency to get some very efficiency performance...

    i found especially when running 16GB density i could of used some more BCLK, finding a combination that worked well with it was quite difficult and this at the moment is a sandy bridge limitation instead of a kit limitation.. if you look at the results from Hiwa on 1156 you can see 2200 MHz LINX with high density..

    i will have some 1156 results to follow in the coming days..

    NOTE: Please note the write MB/s can be inaccurate with older versions of everest, the other are fairly spot on


    The Kits

    2x2GB DDR3-2133 8-9-8-24 1.65v

    [​IMG]

    [​IMG]


    2x4GB DDR3-2200 9-11-9-28 1.65v

    [​IMG]

    [​IMG]




    The Setup
    * GIGABYTE P67A-UD7
    * ANTEC 1200OC
    * INTEL 2600K
    * CORSAIR Force SSD 60GB




    Performance

    Lets jump straight into performance and see what these kits are capable of..

    Looking at the 4GB 2x2GB kit first...

    LINX @ 1096MHz 7-9-7-24
    [​IMG]

    Everest bandwidth @ 1107MHz 7-9-7-24
    [​IMG]

    LINX @ 969MHz 6-8-6-24
    [​IMG]

    Everest bandwidth @ 969MHz 6-8-6-24
    [​IMG]


    Now some figures on the 8GB 4x2GB kit

    LINX @ 1112MHz 9-11-9-28 1T
    [​IMG]

    SuperPI @ 1107MHz 9-10-9-24 1T
    [​IMG]

    Everest bandwidth @ 1107MHz 9-10-9-24 1T
    [​IMG]

    LINX @ 969MHz 8-9-8-24 1T
    [​IMG]



    Lastly figures of 16GB 4x4GB performance

    Everest @ 1050 9-11-9-24 2T
    [​IMG]

    LINX @ 969 8-9-8-24 2T
    [​IMG]
     
  2. ford ftw

    ford ftw Member

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    Looks promising:) any idea when and how much?
     
  3. Bolter01

    Bolter01 Member

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    Thanks M8, I was looking at their new ram on there website and was considering hang out for it while I wait for the Asus ROG.
    Seems
    Whats your thoughts on filling all 4 Dimms?
    ei; 2x4Gb vs 4x2Gb
     
  4. OP
    OP
    youngpro

    youngpro Member

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    ill get some details on when and how much,

    well tbh just get the ram you need, gaming, etc you probably dont need more than an 8GB kit, but for those virtualizing then you surely would want to consider 2 8GB kits...

    i think if you want the best performance you are better to go 2 2x2GB kits to make up your 8GB as the 2GB modules cannot achieve higher frequencies at tighter timings
     
  5. Ice009

    Ice009 Member

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    Did you mean the 4GB modules cannot acheive higher frequencies at tighter timings?

    I've been looking at these new kits from G.Skill if I were to move over to Sandy Bridge. I think I'd get an 4GB x 2 kit though as I wouldn't want to downgrade after having 6GB.

    How tall are the heatspreaders on these kits? Same as the older Ripjaws?
     
  6. -Sk3tChY-

    -Sk3tChY- Member

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  7. OZeight

    OZeight Member

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    Bump. Good question I'd like to know the answer to that too.
     
  8. OP
    OP
    youngpro

    youngpro Member

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    well they are different IC in some circumstance,

    you are always best to get the kit that suites your platform because the SPD of the kit is tailored to it, aka for a AMD platform you might have a looser TRD so you can get more mhz out of the kit,

    in short if you are happy to tune the ram subtimings yourself, go for the best priced kit, if you just want it to work and you dont want to tune, go for the kit that is targeted at the platform,

    these new sticks are around the same height as the old ripjaws, so you shouldnt have problems with clearance on most heatsinks

    the 4GB modules can achieve higher frequencies, but they require looser timings to do so, so for the 4GB kits you will need to set 9-11-9 to achieve maximum results where as on most peoples systems they can make the memory out at 9-9-9 with multiple 2x2GB kits... it just comes back to what application you might want to apply them to and how much ram you actually want!
     
  9. Sammus187

    Sammus187 Member

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    So what's different about these ram sticks? Will they perform on a P55 board as theyre meant to?
     
  10. OP
    OP
    youngpro

    youngpro Member

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    the sandy bridge kits are binned for sandy bridge specificiations and have the sandy bridge SPD on them,

    if you buy the sandy bridge kit yes they will work on sandy bridge perfectly,

    if you buy the p55 or x58 kits they will work 99.9% sure but you might not get the same performance unless you are willing to tweak the timings manually, whereas the sandy bridge kits already have those timings set in the SPD of the ram stick
     
  11. Sammus187

    Sammus187 Member

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    I meant the other way around, will the sandy bridge kits work ok with a non-sandy bridge (p55 or x58) mobo?
     
  12. OP
    OP
    youngpro

    youngpro Member

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    oh sure yeah but same thing applies with the tuning and optimizations...

    but certainly yeah these can run on x58, p55, h55, etc
     

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