7870 XT REQUIRES A 265W ie 22 AMP LEFT OVER BY MB/ACCESORIES on a single rail supply..PSU's which have over 50AMP ON A single rail can run this card easily,
PSU's having multiple rails ie epsilon 600W or 900W they have pcie1 and pcie3 on different rails means 18AMP on 12v1 and 18 on 12v2 or 12v3 can power this card too..
we prefer supplies that have multiple rails to overcome the load of GPU's and MB/ACCESORIES
AUTECHNOLOGIES
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7870 XT REQUIRES A 265W ie 22 AMP LEFT OVER BY MB/ACCESORIES on a single rail supply..PSU's which have over 50AMP ON A single rail can run this card easily,
PSU's having multiple rails ie epsilon 600W or 900W they have pcie1 and pcie3 on different rails means 18AMP on 12v1 and 18 on 12v2 or 12v3 can power this card too..
we prefer supplies that have multiple rails to overcome the load of GPU's and MB/ACCESORIES
AUTECHNOLOGIES