2500k and 3570k for quiet PC?

I'm currently running a locked Intel i5 3.4Ghz it's using 1.05v vcore, it has a 500rpm 120mm fan and a Mugen 2 rev. B.
But I would like to have more speed, maybe 4.0 or even 4.2Ghz.

Do you guys think this is possible with unlocked CPU?

I know the 3570k is slightly better clock for clock, also it can handle more heat(?) but in return gets a bit hotter (?).
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  1. You could absolutely overclock just about any unlocked i5 to 4GHz or even 4.2GHz with proper cooling. I don't know that you could keep the that 120mm fan at 500RPM though, it'll probably need to go up some to deal with increased temp.

    You're half right in the 3570K, it is slightly better clock for then the 2500K (or any Sandy Bridge), and at stock speeds it's actually cooler. But it gets hotter faster with overclocking, and it really can't handle much more heat then the 2500K. However with a decent air cooler, a 4.2GHz overclock is still within reach.
  2. stant1rm said:
    You could absolutely overclock just about any unlocked i5 to 4GHz or even 4.2GHz with proper cooling. I don't know that you could keep the that 120mm fan at 500RPM though, it'll probably need to go up some to deal with increased temp.

    You're half right in the 3570K, it is slightly better clock for then the 2500K (or any Sandy Bridge), and at stock speeds it's actually cooler. But it gets hotter faster with overclocking, and it really can't handle much more heat then the 2500K. However with a decent air cooler, a 4.2GHz overclock is still within reach.


    So then the 2 cpu's are pretty much equal with my cooling?

    Also the Mugen 2 Rev. B is massive so even with a 120mm fan at 500rpm it will perform alot better compared to the stock cooler.

    My guess would be that with one fan it could do 1.2v on SB cpu, with push pull 1.25v, these are estimates and could be more or less.

    Image of Mugen 2 rev B:
    http://www.scythe-eu.com/uploads/tx_cfamooflow/Mugen-2-Rev_B-ViewMounted-1_02.jpg
  3. grandpatzer said:
    So then the 2 cpu's are pretty much equal with my cooling?

    Also the Mugen 2 Rev. B is massive so even with a 120mm fan at 500rpm it will perform alot better compared to the stock cooler.

    My guess would be that with one fan it could do 1.2v on SB cpu, with push pull 1.25v, these are estimates and could be more or less.

    Image of Mugen 2 rev B:
    http://www.scythe-eu.com/uploads/tx_cfamooflow/Mugen-2-Rev_B-ViewMounted-1_02.jpg



    I understand that your cooler at 500RPM is better then stock. Just about everything is better then stock. But I think if you want to hit 4.2GHz on an Ivy Bridge chip, 800-1000RPM single fan will probably be required.
  4. Since noise level is your primary concern, I would simply max out the overclock to a level where the fan is still quiet enough while at the same time the CPU is not operating at a temperature you are uncomfortable with. Unless of course you wanna dish out money for a better / quieter heatsink.
  5. i have an i5 2500K. OC'd at 4.2 ghz... still as quiet as a grave.
    the reason being is, i have a CM Hyper 212 Evo. push and pull config fan.
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