XFX R9 280x Black edition power supply requirement

Soulhunter90

Distinguished
Jun 2, 2014
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Hello guys, I need to upgrade my video card and I can get a R9 280x Black edition real cheap. Problem is I have a Thermaltake Smart M650W, 711W peak. XFX sites states I require a minimun of 750 watts. Most of the time those numbers are exagerated but I don't want to risk it.

My question is, can I run that GPU without changing my current PSU?

Many thanks for your answers.