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GTX 560 ti 448 Power supply requirement.

Last response: in Graphics & Displays
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December 26, 2011 12:40:58 AM

So I have a simple question. I'm very very interested in getting the GTX 560 ti 448 and I wanted to know if my power supply had enough watts. I saw on one product on newegg that it said a minimum of 550 watts. (http://www.newegg.com/Product/Product.aspx?Item=N82E168...) that's the card I want. My power supply is 530watts so according to what is listed on that product I'm 20 watts short. Will I have issues power wise with this card or in reality is 530 watts enough? If it based on what other parts my PC has, I'm running an AMD Athlon II x4 630 processor 2.80GHz, 4GB ram, Windows 7 installed on a 750GB HDD and a 60GB SSD.
December 26, 2011 3:35:00 AM

I can't answer yes or no to 530W being enough, but I can say that to be on the safe side, you should upgrade to 850W or thereabouts. Plenty of juice and you'll definitely have no problems.

Any of these guys make good units:
Corsair
Silverstone
Thermaltake
Coolermaster
PC Power & Cooling
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December 26, 2011 3:51:36 AM

Well I'm a little tight on budget so I'm going to try it with the 530watt and if it doesn't work well my computer will just shut down :D  I mean in like a full gaming stress test the card and the rest of the computer using over 300+ watts So I still have some wiggle room.
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a c 144 ) Power supply
December 26, 2011 4:45:36 AM

karash5050 said:
I can't answer yes or no to 530W being enough, but I can say that to be on the safe side, you should upgrade to 850W or thereabouts. Plenty of juice and you'll definitely have no problems.

Any of these guys make good units:
Seasonic - superb
Corsair
Antec - generally very good
Silverstone
Thermaltake - some good, some not so good
Coolermaster
PC Power & Cooling

You do not need an 850 watt PSU for a single video card.

I do not have any figures on power consumption of a -448, but since it is close to the GTX570 in performace, those figures should work. I'd estimate power consumption of the card around the low side of 240 watts (20 amps at 12 volts). I'd estimate total system power consumption at around 350 watts.

That estimate is based on actual measurements of one of my systems. One of my systems has an OC'd Q9550, 4 GB RAM, a GTX260 - a card with less power requirements to yours, a Gigabyte EP45-UD3P motherboard, 3 hard drives and an optical, and a Soundblaster card all powered by a Corsair 750TX.

Running 3 instances of Prime95 to load the CPU and 3DMark06 to load the GPU, it pulls 375 watts from the wall as measured by my Kill-a-Watt meter. Figuring 80% PSU efficiency, the system pulls 300 watts from the PSU.

You did not specify what your PSU was, but a good 530 watt PSU would do. I would, however, use a good 600 - 650 watt PSU to power a system with a ti-448 in it.
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December 26, 2011 4:52:21 AM

Well tysm for the replay. The PSU i use currently is (http://www.newegg.com/Product/Product.aspx?Item=N82E168...) a RaidMax 530Watt. I figured if the PSU is SLI Ready then it could handle the single GTX 560 Ti 448. I just bought the card. So I'll know if it works or not. I mean worst case is the PC will just shut off during an intense high gaming session and for around 50$ I can grab a 650watt psu from raidmax IF I need to get higher than my current 530watt.
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December 26, 2011 5:24:30 AM

there is a good chance you'll need a new PSU... you can get what need for under 75$, in all seriousness you're going to want a rated efficient PSU that isn't raidmax... Antec corsair and XFX sell quality, relativity budget friendly PSUs.
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December 26, 2011 5:37:58 AM

Ok I'll take a look at those. Thanks!
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December 27, 2011 4:18:35 AM

Hey I need your help. People say I need a certain amount of amps but It's hard for me to tell on newegg b/c the numbers confuse me. My card needs 38 amps. this is the PSU I'm looking at (http://www.newegg.com/Product/Product.aspx?Item=N82E168...) The first number on the output says, +3.3V@38A. Is that the number I look at?
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a c 243 ) Power supply
December 27, 2011 6:38:58 AM

scubasteve526 said:
Hey I need your help. People say I need a certain amount of amps but It's hard for me to tell on newegg b/c the numbers confuse me. My card needs 38 amps. this is the PSU I'm looking at (http://www.newegg.com/Product/Product.aspx?Item=N82E168...) The first number on the output says, +3.3V@38A. Is that the number I look at?

If your interest is in finding the crappiest power supply you could, you've done well.
For probably the first time in history, a man can feel safe saying " You might as well stick with the Raidmax "
Have to go gargle now :pfff: 
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December 27, 2011 8:16:59 AM

Thanks PC elitist you are very friendly(not) and I didn't buy that PSU. Please remove yourself from the forums if you are going to be rude.
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December 31, 2011 8:10:59 PM

What do you guys think about Seasonic brand power supply's? I was checking this one out. http://www.newegg.com/Product/Product.aspx?Item=N82E168... Though I don't know if it has enoungh amps for my video card which says it needs about 38amps. Still unsure of how tell how many amps the power supply will put out. That one shows 24amps but there are like a few of those. Any help would be appreciated.
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a c 243 ) Power supply
December 31, 2011 8:51:16 PM

Sorry for being rude, but hey, you're looking at good quality power supplies now.
It's the combined 12v output that you need to worry about and the Seasonic has plenty ( 576w = 48a ) for your specs.
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December 31, 2011 9:07:29 PM

Well tysm for your help. I guess it comes down to this, since both of those power supply's seem really good, do i want to pay 20$ more for modular or not and I'm really leaning toward modular :D 
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March 10, 2012 6:11:20 PM

What PSU would you need if you plan on overclocking the GPU?
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March 10, 2012 6:25:04 PM

SoundSurj said:
What PSU would you need if you plan on overclocking the GPU?

I bought the Zotac GTX 560ti 448 cores gpu and I paired it with a 650watt psu from OCZ and an intel i5 2500k. I have my GPU Overclocked to 848mhz core speed and 1050mhz on the memory. My i5 is also overclocked to 4.4ghz on stock voltages. I have no issues with power.
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March 11, 2012 10:12:02 AM

Quote:
I bought the Zotac GTX 560ti 448 cores gpu and I paired it with a 650watt psu from OCZ and an intel i5 2500k. I have my GPU Overclocked to 848mhz core speed and 1050mhz on the memory. My i5 is also overclocked to 4.4ghz on stock voltages. I have no issues with power.


Wow, this sounds very promising. I plan on overclocking an i7 2600k, do you think that will make much of a difference?
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