ATI HD7770 + Seasonic power supply 750W

[shijin13]

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

 

[cst1992]

It is more than enough.
If you can afford it, then you could get a much stronger GPU in that PSU.
In fact, you can fit 2 titans in that PSU.

 

[Novuake]

You could run 3, maybe 4 HD7770s. 😀

 

[cst1992]

You could run 3, maybe 4 HD7770s. 😀

Actually, 6.

 

[Novuake]

You could run 3, maybe 4 HD7770s. 😀

Actually, 6.

Not if you consider the rest of the system. But maybe.

 

[lonewolf7]

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.

 

[shijin13]

It is more than enough.
If you can afford it, then you could get a much stronger GPU in that PSU.
In fact, you can fit 2 titans in that PSU.

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!!

 

[Novuake]

If you are planning to game at 1080p then I would suggest you get at least an HD7790 2GB or a GTX650 ti Boost 2GB.

 

[shijin13]

Thanks for all your answers,really appreciate.

 

[Novuake]

No problem.

 

[hypergon]

Upgraded my 5770 to a 7770 some time ago (I killed it lol) and its not bad at 1080p, 7790 is better no question

 

[shijin13]

I have decided to buy AMD Radeon HD 7790 1GB. 2 GB is expensive for me 🙁

 

[cst1992]

I have decided to buy AMD Radeon HD 7790 1GB. 2 GB is expensive for me 🙁

It'll do you just fine.