Dual G5 2GHZ mempory question

dage007dage007
Posted:
in Current Mac Hardware edited January 2014
I have a dual G5 2GHZ with a bus of 1GHZ. The ram I currently have in there is PC3200 or 800MHZ. Does anyone know if because the bus is actually 1GHZ, would I get any advantage in putting in PC 4000 or 1GHZ ram?



Just currious if anyone has tried it out yet to see a comparison of it?



DD

Comments

  • Reply 1 of 2
    powerdocpowerdoc Posts: 8,123member
    Two differents things here :



    The speed of the bus between the chipset and the CPU are one ghz, but the memory bus is limited to DDR 400 support on dual channel. If you put a DDR 500 memory, it will work like a DDR 400. There is no way of overclocking the memory bus of a dual G5.



    Notice also, that the memory speed of the G5 is already impressive. If you want more speed for your G5, just add more RAM. 2 GB or RAM rock with a G5 especially for huge photoshop stuff.
  • Reply 2 of 2
    dage007dage007 Posts: 320member
    Quote:

    Originally posted by Powerdoc

    Two differents things here :



    The speed of the bus between the chipset and the CPU are one ghz, but the memory bus is limited to DDR 400 support on dual channel. If you put a DDR 500 memory, it will work like a DDR 400. There is no way of overclocking the memory bus of a dual G5.



    Notice also, that the memory speed of the G5 is already impressive. If you want more speed for your G5, just add more RAM. 2 GB or RAM rock with a G5 especially for huge photoshop stuff.



    Ya the reason I was asking is because I already have 4GB of eam and of course for photoshop it only uses about 1.7GB of ram so I had to create a 2GB ram disk with the extra ram that I have.



    This way photoshop uses about 3.7GB of ram total, so thats not too bad but my scratch disk still gets used so thats why I was asking because I am considering going to 8GB of ram, but I can wait for taht till the price goes down or maybe 2GB chips come out at a decent price that would be pretty sweet for sure especially in photoshop.



    Thanks



    DD
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