Do most graphics card need external power supply?

allahjane

Honorable
Jul 19, 2012
15
0
10,510
Does newer gfx cards like gtx 900 series and the latest 1000 series need external power cables? Or can they work at their max with power from pci-e slot?

In case an external supply is needed does it uses the same main power supply as the motherboard ? Or it needs a dedicated psu?