How many watts needed for my pc?

I am building a custom PC which consists of these parts:
Intel Core i5 4670
2x4gb ddr3 1600mhz corsair Vengence RAM
Asus H87M-PLUS Intel H87 MoBo
Case: Thermaltake Versa H21 CA-3B2-50M1NA-00 USB3.0 Black Mid Tower
Video card: HD 7750 2gb (will upgrade to Radeon R9 soon)
Btw, the case with 500W PSU. Will that be enough?
3 answers Last reply Best Answer
More about watts needed
  1. 500w psu is enough for ur rig for now
  2. Best answer
    Which R9 series are you upgrading to? Just for reference for what PSU you will need there is a list of R9 series cards and there PSU requirements. Also dont go cheap on the PSU get a certified (bronze or better) PSU.
    Radeon R9-290X - 33A and a 600W psu minimum
    Radeon R9-290 - 31A and a 550W psu minimum
    Radeon R9-280X - 30A and a 550W psu minimum
    Radeon R9-270X - 24A and a 500W psu minimum
    Radeon R9-260X - 19A and a 450W psu minimum
  3. I am probably going to upgrade to Radeon R9-270X
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