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    PC-5300 vs PC2-5300?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by fd9_, Jun 27, 2007.

  1. fd9_

    fd9_ Notebook Guru

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    What's the difference between "PC" and "PC2"? ( not "DDR2" vs "DDR")
     
  2. Gautam

    Gautam election 2008 NBR Reviewer

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    Do you mean DDR v. DDR2? It refers loosely to speed categories of the RAM chips in question.
     
  3. SideSwipe

    SideSwipe Notebook Virtuoso

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    ones a newer tech, ones older tech

    DDR2 is faster, with faster potential speeds, it requires less voltage to run so that helped
     
  4. fd9_

    fd9_ Notebook Guru

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    No, I'm talking about PC-5300 vs PC2-5300, BOTH are DD2. I just want to know the difference between "PC" and "PC2".
     
  5. SideSwipe

    SideSwipe Notebook Virtuoso

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    dont think its a difference really, probably the 2 there is to say its DDR2 or a typo. there is only one 5300 anyways.
     
  6. fd9_

    fd9_ Notebook Guru

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    If you search somewhere like Fry's or Amazon for "DDR2 PC2-5300" and then again for "DDR2 PC-5300" you'll get different results...I don't think it's a typo. Maybe it's meaningless? Just different naming conventions? I can't figure it out.
     
  7. wave

    wave Notebook Virtuoso

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    They are the same. The official name is PC 5300. PC2 5300 is a mistake but you cant really call it a mistake since manufactueres can call their stuff what they want.
     
  8. yuio

    yuio NBR Assistive Tec. Tec.

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    its to make you think PC2 is better than PC.
     
  9. fd9_

    fd9_ Notebook Guru

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    Well it certainly worked! :D
     
  10. SideSwipe

    SideSwipe Notebook Virtuoso

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    heh well you should know from the movies that sequels always suck :p
     
  11. Lyshen

    Lyshen Notebook Evangelist

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    I'd be willing to guess the reason most (all?) manufacturers call their DDR2 ram PC2 is so the consumer can tell its a DDR2 ram. Although perhaps not a standard, most ram retailers have and should have DDR1 listed as PC-speed and DDR2 as PC2-speed.

    When DDR2 first came out the speeds were lower, probably within the same area as the high end DDR1. Given that, if you had two ram sticks listed, with PC-speed but one was DDR1 and other was DDR2, without referring to DDR#, its possible to get them mixed up.

    Now... with DDR3 ram coming out, they are referred to as PC3, otherwise you will have overlay of DDR2 & DDR3. One of the slowest DDR3 is PC3-8500... and there is also DDR2 available at the 8500 speed.

    As for your question, if they are both DDR2, then no difference.
     
  12. royski007

    royski007 Notebook Consultant

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    what i read was:
    DDR = PC
    DDR2 = PC2

    eg.
    DDR 677 = PC 5300
    in the ddr spec it gives the Mhz. in the PC it gives you the max bandwith in megabytes.

    DDR2 677 = PC2 5300
    DDR2-533 = PC2 4200
    DDR 400 = PC 3200

    in other words the "2" indicates dual channel.
     
  13. Lyshen

    Lyshen Notebook Evangelist

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    2 is not to mean dual channel.

    Dual channel is a function of the motherboard. You can run DDR (DDR1) ram in dual channel mode, same with DDR2.
     
  14. SideSwipe

    SideSwipe Notebook Virtuoso

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    dual channel is when you have two or four same size/spec RAM sticks running in a supported motherboard, they are not specific to a certain type of RAM so no the "2" does not mean dual channel. they had dual channel back in the DDR era so if that was true then why isn't there a "2" there as well. and why would they put a "2" in a single module spec? you can run single channel or dual channel in any modern machine.

    there is no PC5300 DDR, the max DDR ever came to was DDR400/PC3200 so PC5300 is out of DDR's range. it is DDR2 RAM and it's not 677, it's 667.

    it really is just a typo or gimmick to trick people into thinking this is special RAM when it isn't.
     
  15. Gautam

    Gautam election 2008 NBR Reviewer

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    It's all a name game - they are the same in the end.
     
  16. royski007

    royski007 Notebook Consultant

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    yeah i ment 667, not 677. my bad.

    anyway, i didnt know about that,..
    i gota refresh my mind about this.
    is there a link you got so i can read more about this?
    il try to google for it.
     
  17. royski007

    royski007 Notebook Consultant

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    yeah my error, i forgot to put a 2 after DDR and PC when it said: DDR 677 = PC 5300

    so far i read:

    the DDR2 has nothing to do with the Dual channel thing. true. its the memory speed. there is a newer DDR3. it supports higher clock speeds.
    wether its DDR or DDR2, both have ones that support dual channel and some are single channel.

    PC2-5400 DDR2-SDRAM (single channel) 42.664 Gbit/s 5.333 GB/s
    PC2700 DDR-SDRAM (dual channel) 43.2 Gbit/s 5.4 GB/s
    PC3200 DDR-SDRAM (dual channel) 51.2 Gbit/s 6.4 GB/s
    PC2-3200 DDR2-SDRAM (dual channel) 51.2 Gbit/s 6.4 GB/s
    PC2-6400 DDR2-SDRAM (single channel) 51.2 Gbit/s 6.4 GB/s
    Itanium zx1 bus 51.2 Gbit/s 6.4 GB/s
    Prototype DDR3-SDRAM (?) 68.224 Gbit/s (?) 8.528 GB/s
    PC2-4200 DDR2-SDRAM (dual channel) 68.272 Gbit/s 8.534 GB/s
    PC4000 DDR-SDRAM (dual channel) 68.6 Gbit/s 8.575 GB/s
    PC2-5400 DDR2-SDRAM (dual channel) 85.328 Gbit/s 10.666 GB/s
    PC2-6400 DDR2-SDRAM (dual channel) 102.4 Gbit/s 12.8 GB/s

    Module name Bus clock Chip type Peak transfer rate
    PC2-3200 200 MHz DDR2-400 3.200 GB/s
    PC2-4200 266 MHz DDR2-533 4.264 GB/s
    PC2-5300 333 MHz DDR2-667 5.336 GB/s1
    PC2-6400 400 MHz DDR2-800 6.400 GB/s
    PC2-8500 (planned) 533 MHz DDR2-1066 8.500 GB/s