how many amps from the psu does an rx480 need?

[The Abacus]

my psu has 4 20 amp 12v rails (540 watts provided across them)
could this pose an issue with the graphics card?

 

[TJ Hooker]

Exact PSU make and model?

 

[The Abacus]

antec true power new 550w

 

[ko888]

On an AMD Reference Design Radeon RX 480 8 GB Card at load:

6.4 Amps on average from the +12V rail through the 6-pin PCI Express supplementary power connector
6.1 Amps on average from the +12V rail through the motherboard's PCI-E x16 slot

So 12.5 Amps on average from the PSU's combined +12V rails for the graphics card only.

 

[TJ Hooker]

Should be fine. The CPU, 24 pin motherboard, and both PCIe connectors are all on different rails.

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