Quick Video Card Question

[Advent]

I find it difficult to locate a straight answer, so I was just wondering how much amperage is needed on 12V rails for cards like,

6850/6870
5770/5870 (the 5770 works in my system, but I'm looking at slow upgrade options at the moment)
560ti/570ti

[Jurwi]

560Ti

P = V*I ->
I = P/U
I = 160W / 12V (160W load consumption according to some test I quickly googled)

I = 13,3~ A

Physics doesn't get much easier than that, unless I'm remembering it all wrong =]

[ispano]

Pretty Much. Watts = Volts x Amps. So just Divide the Watts by 12v and there you go.

[Advent]

And... finding the TDP of these cards is a pain in my ass. Thanks though, guys.

[Deleted]

Says minimum 12V rating of 30amps on my GTX560 box but runs fine despite my PSU being rated for 24 amps, probably because the card needs two 6 pin connectors.

[haxartus]

The max TDPs should be somewhere around this:
6850 - 127W.
6870 - 151W.
5770 - 108W.
5870 - 188W.
560 ti - 170W
GTX 570 - 219W.