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What wattage of a power supply would work the best for my build?

my specifications on my PC
Motherboard - GIGABYTE MA785GMT-UD2H
Processor - AMD Phenom II X4 965 Black edition (3.4ghz)
RAM - 2x 4gb(8gb) DDR3 PNY 1333mhz
Power Supply - 520watt
Graphics Card - AMD Radeon R7 270X 4GB

Im wanting to upgrade my power supply on my PC and im not really sure what kind of wattage i should get, i want one that would have room to be able to handle quite a bit i might look into doing crossfire and i want to have one that can support that.
Im wanting to probably get it in a local store because i dont really want to wait on shipping and all that. I looked the other day and i seen they had a 750w corsair power supply that i thought about getting but i did see another 600 and 650 watt thermaltake brand. anyone know how relyable they are? it was alot cheaper than the corsair and i thought about getting one of those if they were good.

what wattage would you recommend for my build?
and is thermaltake a good brand??

Thank you :)
6 answers Last reply Best Answer
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  1. Best answer
    750W is far more than you need for that system. But Corsair is better than Thermaltake except for a few units. Use this PSU hierarchy chart to pick a model in the 1st 3 tiers. Then see what the local supplier has. But if it is in the 1st 3 tiers, you would only need 550W min. Be sure it has 2 x 6/8 pin PCIe connectors for your card, though.
    https://community.newegg.com/eggxpert/computer_hardware/f/135081/t/45344.aspx?Redirected=true
  2. clutchc said:
    750W is far more than you need for that system. But Corsair is better than Thermaltake except for a few units. Use this PSU hierarchy chart to pick a model in the 1st 3 tiers. Then see what the local supplier has. But if it is in the 1st 3 tiers, you would only need 550W min. Be sure it has 2 x 6/8 pin PCIe connectors for your card, though.
    https://community.newegg.com/eggxpert/computer_hardware/f/135081/t/45344.aspx?Redirected=true


    :) thank you and will do, this is Corsair one the store has just like it : http://www.newegg.com/Product/Product.aspx?Item=N82E16817139051&cm_re=cx750m-_-17-139-051-_-Product

    should i go for this one?
  3. Remember to add 30% to whatever voltages websites come up with if you want the power supply to last and not give you headaches.
  4. DefectedSOul said:
    clutchc said:
    750W is far more than you need for that system. But Corsair is better than Thermaltake except for a few units. Use this PSU hierarchy chart to pick a model in the 1st 3 tiers. Then see what the local supplier has. But if it is in the 1st 3 tiers, you would only need 550W min. Be sure it has 2 x 6/8 pin PCIe connectors for your card, though.
    https://community.newegg.com/eggxpert/computer_hardware/f/135081/t/45344.aspx?Redirected=true


    :) thank you and will do, this is Corsair one the store has just like it : http://www.newegg.com/Product/Product.aspx?Item=N82E16817139051&cm_re=cx750m-_-17-139-051-_-Product

    should i go for this one?


    Like I said, more than you need. But it will work fine, and it's a good unit. You'll have plenty of extra headroom. Keep in mind, the efficiency of that size PSU won't be as good as a better sized unit. But that's not a deal breaker unless electricity costs are a factor.

    (I shouldn't talk, I guess. I have another PC with a Phenom II X4 965 BE @ 4GHZ and a R9-280. It too has a 750W PSU... lol)
  5. clutchc said:
    DefectedSOul said:
    clutchc said:
    750W is far more than you need for that system. But Corsair is better than Thermaltake except for a few units. Use this PSU hierarchy chart to pick a model in the 1st 3 tiers. Then see what the local supplier has. But if it is in the 1st 3 tiers, you would only need 550W min. Be sure it has 2 x 6/8 pin PCIe connectors for your card, though.
    https://community.newegg.com/eggxpert/computer_hardware/f/135081/t/45344.aspx?Redirected=true


    :) thank you and will do, this is Corsair one the store has just like it : http://www.newegg.com/Product/Product.aspx?Item=N82E16817139051&cm_re=cx750m-_-17-139-051-_-Product

    should i go for this one?


    Like I said, more than you need. But it will work fine, and it's a good unit. You'll have plenty of extra headroom. Keep in mind, the efficiency of that size PSU won't be as good as a better sized unit. But that's not a deal breaker unless electricity costs are a factor.

    (I shouldn't talk, I guess. I have another PC with a Phenom II X4 965 BE @ 4GHZ and a R9-280. It too has a 750W PSU... lol)


    lol if they have a 600watt one i might get that one if not ill ge the 750 lol thanks dude :)
  6. If you OC your 965, the 600W would be better than a 550W. Both would be OK, but the 600W would give you more headroom.
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