[QUOTE="DMC3"]
[QUOTE="starwa1ker"]Is 650 watts enough? Or I should go for 750 watts?Hanass
I have read that i7 920 uses 155W while turned on and min. 250W while full working. Graphics cards can use almost 250W (1 graphic card).I think that 650W power supply is now days a minimum. 850W is a new medium and above 1000W is playing it safe (if you have the money to buy it of course) .
Total BS, you fell for the marketing scam that PSU manufacturers set up. At 850W you can run a massively OC'ed Core i7 AND 2 GTX 295's Quad-SLI no problem, as long as it's a good quality PSU. So yeah, 650W is even overkill (you could get away with 550-600).
No scam. That aren't the numbers from the manufacturers. The magazine that I read measured the usage them self and I believe them. You can go and buy a 650W PSU but when you consider adding a extra graphics card you may need to consider a more powerful PSU. In my opinion you shouldn't buy a PSU that has the almost exact power that your PC needs, you should buy a PSU that has extra power so that when you want to upgrade something you don't have to buy a new PSU. It's better to have more power, I think of it like backup.I agree that he could run this PC without problem with 650W PSU but why buy 650W PSU when you have the opportunity to invest in something that will eventually pay off in long term.
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