PSU & Power Consumption Question

I was just wondering how I am able to run my system, seemingly fine (playing a game like CS:GO), on a 430w PSU when my GPU alone says it requires a minimum of 450w. Is the power req accurate, or is there something else to it?
Should I take it back and get a higher one?

Estimated Power Comsumption (according to specs and This Site)

GPU: PowerColor Radeon HD 5750 1BG (450w)
CPU: AMD FX-6300 Six-Core (95w)
RAM: G.SKILL Ripjaws 4GB DDR3 1600MHz CL9 (2-3w)
Mobo: MSI 970A-G46 AMD 9 Series (??)
HDD: WD Blue 1 TB (6.5-9w)
SSD: Samsung 120GB 840 EVO (0.6-2.8w)
Optical: LG Electronics 24X SATA (15-27w)
2x 120mm Fans

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  1. Best answer
    Because A Radeon HD 5750 only needs 30 amps on the 12v rail and a 400w to 450w Power supply.

    A decent 450 watt is plenty for those specs the 5750 won't even pass 100w.
  2. A good quality 350w PSU would be enough to power that system.
  3. Ah ok, thanks for the info. =)

    Including all the other components, would you recommend getting a higher PSU?

    Thanks =)
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