how many watts for two gtx 560s
- Thread starter thathard
- Start date
ruthless_villain
New member
lowest? probably get away with 650 you know if it is a decent brand not a winpower or some crappy oem unit
chris8224
New member
You cant just take into account only the GPU's, you also have to consider what the specs of the rest of your system are for example:how much power dose your CPU need, how many hdd's/fans do you have.
Maby if you supply us with all the information we need we would be able to give you an accurate answer.
Maby if you supply us with all the information we need we would be able to give you an accurate answer.
dugdiamond
New member
AX850
ruthless_villain
New member
850W wtf are you smoking, you can run dual 570s on a 750 with ease so why a 850 for 560s?
dugdiamond
New member
the stuff you gave me!!!
i suggested the ax850 for many reasons
quality
to aid future upgrading possibilites
and
value for money
as soon as thathard starts plugging in USB devices, maybe adds more HDDs, maybe adds an optical.... whatever.... and then starts overclocking (the reason why he is here).... some pathetic low end PSU will start choking.
stop being blinkered when people ask for advice - LOOK AT THE BIGGER PICTURE WITH A LITTLE FORESIGHT
alienware
Banned
IT'S NOT ABOUT WATTAGE IT'S ABOUT AMPAGE.
Do your research all of you FFS.
Go here.
http://www.guru3d.com/article/enermax-modu82-ii-625w-psu-review/6
Or if you can't be bothered here, look at this.
It.Isn't.About.Wattage.
That's a smoke screen. It's about ampage. Car amplifiers draw 13.8v no matter if they have a 20w output or 2000w output .It's the amps they draw. A large amp can suck dead an alternator and battery in minutes.
Please, go away and learn how electricity works, ohms law, waste heat and how the 80+ org rating works.
Do your research all of you FFS.
Go here.
http://www.guru3d.com/article/enermax-modu82-ii-625w-psu-review/6
Or if you can't be bothered here, look at this.
It.Isn't.About.Wattage.
That's a smoke screen. It's about ampage. Car amplifiers draw 13.8v no matter if they have a 20w output or 2000w output .It's the amps they draw. A large amp can suck dead an alternator and battery in minutes.
Please, go away and learn how electricity works, ohms law, waste heat and how the 80+ org rating works.
S_I_N
New member
actually its about watts and amps to be perfectly honest. but amps play a big part. thing to consider is each psi-e slot is capable of 75watts each 6pin is also 75watts each 8pin is 150watts so each card needs 225 watts if you use 2 cards thats 450watts there alone now add in the rest of ur components and try to stay within ur psus EFFICIENT RANGE to keep it from screaming at you . One needs to use a higher wattage PSU now normally higher wattage psu means more amp but thats not always the case as suggested earlier. I'd say a 850watt of at least min 60amps but 70+ would be better. The 225watts per card is because were talking about 560's which have 2 6pin connectors. Also keep in mind that running more than one monitor per card will have an effect on the cards power draw. I notice when I go dual monitors my card runs hotter.
alienware
Banned
^ and less headaches.
-warheart-
New member
ax 750 is fine, 850 is better
alienware
Banned
I'm not saying either are wrong but the advice given here is tending to be based on the wattage rather than the rail amps.
That's bummy advice. If what was being said was look for a 700w+ psu with good rail ampage
Yes, Corsair PSUs carry more than enough rail ampage, but telling some one you need a 750w psu could lead them to buy a cheap 750w psu.
Wattage is cheap, ampage isn't. Ampage depends on heavy duty quality parts.
I don't think any more than 650-700w is needed for GTX 560 sli, most due to what was said in that article.
The reality is very interesting, where we passed 750W two years ago with all that equipment and overclock we are barely able to pass ~700 Watts load.
Now mind you, this is a 625W PSU, with an allowed peak to 690W. It however was not an issue.
As stated, a year or two ago with this very system we'd have passed 800 Watts. PSUs themselves are becoming more and more efficient and thus greener as well, in the end saving on overall power draw from the wall socket, and that in return saves you money on the power bill.
That's bummy advice. If what was being said was look for a 700w+ psu with good rail ampage
Yes, Corsair PSUs carry more than enough rail ampage, but telling some one you need a 750w psu could lead them to buy a cheap 750w psu.
Wattage is cheap, ampage isn't. Ampage depends on heavy duty quality parts.
I don't think any more than 650-700w is needed for GTX 560 sli, most due to what was said in that article.
The reality is very interesting, where we passed 750W two years ago with all that equipment and overclock we are barely able to pass ~700 Watts load.
Now mind you, this is a 625W PSU, with an allowed peak to 690W. It however was not an issue.
As stated, a year or two ago with this very system we'd have passed 800 Watts. PSUs themselves are becoming more and more efficient and thus greener as well, in the end saving on overall power draw from the wall socket, and that in return saves you money on the power bill.
Yes, none of those SLI driver issues and bugs
and you could always get another one if ever need more oomph!
