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32bit OSes are for someone who has 3gb or less RAM, because it doesn't recognize anymore than that.

64bit is for someone that has 4+gb of RAM. it recognizes it and can use it to its full potential.

so it doesn't matter for OCing.
 

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I'm new here but WHY????

Shouldn't it not matter? I always thought that the CPU speed was more low level than the OS and was independent of the OS. I don't doubt real world performance but theoretically shouldn't it be the exact same? Unless I'm missing something here like memory addressing or some weird concept that somehow magically affects it.
 

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Overclocking what?

CPU, it won't make any difference..

but GPU might have some issues with the different OSs Im not sure.
 

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Executing 64 bit instructions would logically utilize more of the circuits in the CPU, thus, more power consumption and more heat. So it would be logical that a CPU could over-clock higher if it has been "dampened" by only having to execute 32 bit instructions.

I think the more important question would be: Is a modern 3.5GHZ machine limited to 32 bit instructions going to perform better than a 3.4GHZ 64 bit enabled machine?

Being able to take advantage of 64 bit instructions will translate to better computing performance than a slightly higher clock.

Having access to more RAM can provide far better computing performance in situations that can utilize it than a slightly higher clock.

Eric
 
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