ATI HD7770 + Seasonic power supply 750W

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shijin13

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Dec 19, 2013
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Hi All, Just joined!!! :)
I am upgrading my PC and I have already bought a new motherboard M5a99fx pro r2.0.
My CPU is phenom ii x4 955 black edition and Corsair 4 GB ram.
My question is i m really intereested in buying HD7770 (an upgrade to my current 5770), but i heard it needs an auxiliary psu. My current PSU is seasonic 750w 80 silver.

Will it be enough, or do i need to invest in an auxiliary PSU? Thanks in advance
 
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lonewolf7

lonewolf7

Splendid
May 6, 2013
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Measured power consumption R7770
1.System in IDLE = 155W
2.System Wattage with GPU in FULL Stress = 231W
3.Difference (GPU load) = 76W
4.Add average IDLE wattage ~10W
5.Subjective obtained GPU power consumption = ~ 86 Watts

Radeon HD 7770 - On your average system the card requires you to have a 450 Watt power supply unit.
Radeon HD 7770 Crossfire - On your average system the cards require you to have a 550 Watt power supply unit as minimum.

So you are fine to go, don't worry. And Seasonic is a solid PSU. You can increase RAM to 8GB will help on games.
 
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shijin13

Honorable
Dec 19, 2013
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10,510


Wow!! Thnks for the quick reply. I know this needs another post but if you can please suggest any other GPU better than the HD7770 that I am intending to buy in or about the same price range. That woul be great!! :)
 
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