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1333 MHz CPU with 1066 MHz DDR3 RAM

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  • Memory
  • DDR3
  • RAM
  • CPUs
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July 26, 2011 7:21:00 PM

Right now i have a Xeon X3370 CPU (1333 MHz) running with 2 x 2GB DDR3 1066 MHz RAM. If i upgrade to 1333 MHz RAM will i see a noticeable difference in speed? Also i have another 2GB DDR3 1066MHz stick laying around, will i benefit from 3 x 2GB sticks of RAM or will I see no difference. There are four slots for RAM on my mobo i heard putting an odd third stick slows down the computer is that true?

Thanks guys

More about : 1333 mhz cpu 1066 mhz ddr3 ram

July 26, 2011 7:59:11 PM

Drumer65 said:
Right now i have a Xeon X3370 CPU (1333 MHz) running with 2 x 2GB DDR3 1066 MHz RAM. If i upgrade to 1333 MHz RAM will i see a noticeable difference in speed? Also i have another 2GB DDR3 1066MHz stick laying around, will i benefit from 3 x 2GB sticks of RAM or will I see no difference. There are four slots for RAM on my mobo i heard putting an odd third stick slows down the computer is that true?

Thanks guys


Ok, if you're going to use that much RAM (maybe with windows 7 x64 running games, visual studio, Photoshop, etc) then yes, having that much RAM is good and will benefit to your speed. However, if you're on an older OS (windows xp) or a 32bit OS (windows 7 x86 or XP x86) then no, the extra memory wont help you at all. Keep in mind, the speed of the RAM depends really on your motherboards Front Side Bus speed, not your processors speed. Make sure you motherboard can handle the 1333 Mhz speed. If you combine the two speeds (1066 and 1333 RAM) then you motherboard will only clock them as fast as the slowest stick (1066Mhz).

As for your third stick slowing down the PC - that depends on if you are using that 3rd stick. If you have 2 sticks (4GB) and yours using 3.5GB of RAM during normal operations, then it's worth it. If lets say you have 6GB of RAM and are only using 2GB at normal operations, then the overhang (the extra 4GB) will be slowing down the pc (ever so slightly i may add). But you most likely wont even notice the speed reduction.

IMHO, the more the merrier. It's always better to have too much RAM then not enough. I rather not have a slow page-file on my hard drive.
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July 26, 2011 9:02:37 PM

Yeah i run Windows 7 64 bit and i play several games. My motherboard does support 1333 Mhz FSB so would it be worth the money to upgrade to 2 x 2GB DDR3 1333MHz sticks or will i see no noticeable difference. Right now the RAM is slowing down the CPU correct?
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July 27, 2011 6:25:10 PM

Yeah. if you got the extra money, go with the 4GB of 1333Mhz RAM. To get the most out of your computer, get the RAM that can perform to the fastest FSB speed. (in your case 1333).
4GB is plenty enough for any gaming in my opinion. If you want more speed, i would upgrade the processor.
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