Subjective obtained GPU power consumption = ~ 254 Watts
AMD R9 290 - On your average system the card requires you to have a 550 Watt power supply unit.
AMD R9 290X - On your average system the card requires you to have a 550~600 Watt power supply unit.
If you are going to overclock GPU or processor, then we do recommend you purchase something with some more stamina.
Subjective obtained GPU power consumption = ~ 254 Watts
AMD R9 290 - On your average system the card requires you to have a 550 Watt power supply unit.
AMD R9 290X - On your average system the card requires you to have a 550~600 Watt power supply unit.
If you are going to overclock GPU or processor, then we do recommend you purchase something with some more stamina.