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How much power will a i5-2500k and a 7850 need?

post #1 of 11
Thread Starter 
I'm gonna be overclocking both. The i5 to somewhere like 4.4/4.5 not sure about the gpu. What would be a safe bet? I wanna use as less money as possible and i will be buying a good brand like corsair.
post #2 of 11
You could get away with a solid 600W just fine, maybe even 550. Go with Corsair (AX or HX) or Seasonic, or another good brand.
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post #3 of 11
Rosewill HIVE/Capstone 550 W is all you need.
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post #4 of 11
A good 500W is more than enough for those two. Even a good 450W (like the Rosewill Capstone 450W) should cover that setup just fine, overclocking included.

I'm running a 2500K (@ 4.8 GHz) and GTX 570 (overclocked to 910 MHz core and 2100 MHz memory) on my PC Power & Cooling Silencer 600W. A GTX 570 is 219W TDP stock, while your HD 7850 is only 120W TDP stock.
Edited by 996gt2 - 3/31/12 at 7:00pm
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post #5 of 11
Quote:
Originally Posted by 996gt2 View Post

A good 500W is more than enough for those two. I'd say even a good 450W (like the Rosewill Capstone 450W) should cover that setup, even with overclocking.

Damn beat me to it but THIS^^.

A 7850 draws 100W under Furmark. Expect less during normal gaming usage. That combined with a CPU that will probably consume 115W using LinX (w/ AVX) @ 4.5GHz..
post #6 of 11
550W will do.
post #7 of 11
a good 400W will even do.
post #8 of 11
To mirror the above, anything reputable in the 500 - 600W will be just fine. You would only need more if you plan to Crossfire and even then a solid 600W would get you by.
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post #9 of 11
Well to be real, 350 watts, but there aren't many good choices there, so I'll say 400 watts.
post #10 of 11
It shouldn't be over 300W for a very heavy load for the whole system, unless you have lots of hard drives, even considering that both are overclocked. You don't really need to be concerned about the wattage since there don't really exist many low-wattage ATX units at retail, just the quality.
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