Choosing the right PSU

[Klojo]

I'm building my own pc but don't know what PSU I have to take.


Gfx card: 2x GTX560
i5-2500K processor
motherboard: P67 extreme4 Socket 1155
1 Harddisk 750GB
8Gb RAM

I will be playing BF3 on it (if that's even relevant).

Is 750 Watt enough or is it better to take a 950 (Like realy necessary).

I know there's isn't a big difference in prices between them, but I'm asking for my brother aswell who has a 750 in his current pc and is upgrading instead of actualy buying a completely new one.

[RenegadeXan]

Thermaltake Toughpower XT 775 W, its reliable, doesn't come DOA 5 year warranty, cheap price. good quality, im about to just order one right now because its so cool.

[Deleted]

-- Incorrect info

[Munk]

Seasonic or PC;P&C or Cougar. Silver/gold/plat certified.

I would never buy from any other company and never all lower cert.

[BicycleMafioso]

After a bit of googling, I found that the 560 under load draws about the 300W mark. So thats 600W plus 95W for the processor. If you can afford the bigger power supply - without cutting the reputation of it, then I'd go higher, just in case you want to upgrade later on and don't have to re-buy the power supply.

Given you're already up to around 700W if you put the system under load, I'd go with a solid brand - Corsair, SeaSonic, Antec etc 750-800W.

No.
No.
No.
You're looking at total system-draws. IIRC, a GTX580 draws 222w on it's own.
So you just overkilled his PC. :P

A 650w should be enough, with enough room to spare to make it silly. I recommend the SeaSonic X-650.

[BicycleMafioso]

I'll add in my vote for either Seasonic (provided they're as good as they were back in the A64 days) or Corsair.

Since SeaSonic makes the best of Corsair ones, whom all receive high praise, I'd say they are. :P (The only specific "good" PSU they don't make is the AX1200, they do make the rest of the AX-line, though.)

There are still reasons to go Corsair. For instance, they have 7 years warranty, I believe. And their customer support have yet to fall under the inevitable "be too long in the business"-curse (ie, they all start out great in customer support, but degrades to horridity)

[Asics]

Whatever you take, don't skimp out.

[Deleted]

Since you are going to run 560 Ti SLI, you'll need a 700+ Watt power supply unit if you use it in a high-end system (800+ to a KiloWatt is recommended if you plan on any overclocking)
But if you are going with a single card, 600 Watt will do.

[Skelly]

Yeah a 560 will take about 175W under load. When you see 300W in a benchmark, that is for the whole system, at the wall. You'll be fine with 650W.

Oh, and I hope you're getting 2x GTX 560 *Ti*

[BicycleMafioso]

Since you are going to run 560 Ti SLI, you'll need a 700+ Watt power supply unit if you use it in a high-end system (800+ to a KiloWatt is recommended if you plan on any overclocking)
But if you are going with a single card, 600 Watt will do.

Even if he was running two 560 Ti's, 650w would be enough even if he overclocked CPU and both GPUs.

[oseven]

SLI is going to cost you like 100 dollars a year in electric bills. Just buy a single 580...

[Deleted]

No.
No.
No.
You're looking at total system-draws. IIRC, a GTX580 draws 222w on it's own.
So you just overkilled his PC. :P

A 650w should be enough, with enough room to spare to make it silly. I recommend the SeaSonic X-650.

Damn, some of them were using total draws, some the card itself. I thought it was a bit high. Another vote for the SeaSonic though, great PSUs.