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TPD for the card is 170, but it won't use that much power most of time during normal use. Depends on the cpu and the rest of your system but unless you're running something crazy 500 watts should be fine. Most consumer cpus are around ~100 watts. But frankly its not much more to get a 650 or 750 and have plenty of overhead- so i would recomend that.
Sorry, there was a problem. Please try again later.550 W or greater system power supply
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