chrisdglong
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I have a 480 currently. However, I would like to SLI and have a 1000 watt PC Power and Cooling PSU. It is like 85% efficient, silver rated. Very good PSU. However, I never have felt comfortable pushing two 480's through it. I have done it twice and all went well, but it just made me a bit uneasy. That and the heat and noise levels were kind of annoying. Anyway, how much more efficient are the 570's? Will two require a good amount less than two 480's? About how many watts less, if they do? I know they run cool and quiet, thanks to their vapor chambers (I've had a 5870 vapor x, amazing technology).
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linuxrouter
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Re:570 SLI Power Supply?
Friday, January 07, 2011 8:51 PM
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Nvidia has the 570 rated at 219W and 480 rated at 250W. Your PC P&C PSU should easily be able to handle two of the 570 cards. These power supplies are noisy due to the increase in fan speed of the 80mm fan as load increases.
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paavonurmi
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Re:570 SLI Power Supply?
Friday, January 07, 2011 8:54 PM
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My rig is pulling 685 watts while playing Metro 2033:
2x 570's, i 7 920@3.8, 1 water pump, 3 hdd's, 2 monitors, usb mouse, wacom tablet, 4 case fans, 7.1 speakers.
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chrisdglong
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Re:570 SLI Power Supply?
Friday, January 07, 2011 8:57 PM
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linuxrouter
Nvidia has the 570 rated at 219W and 480 rated at 250W. Your PC P&C PSU should easily be able to handle two of the 570 cards. These power supplies are noisy due to the increase in fan speed of the 80mm fan as load increases.
Actually, my power supply is really quiet and runs cool. I can put my hand to the back of it when running two 480's and still feel nice cool air. The power supply doesn't break a sweat. Honestly, the 480's power draw, noise, and heat are my main concerns. I would rather not have a high wattage heater in my room, if you know what I mean. Plus, that jet noise is extremely annoying.
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chrisdglong
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Re:570 SLI Power Supply?
Friday, January 07, 2011 8:58 PM
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paavonurmi
My rig is pulling 685 watts while playing Metro 2033:
2x 570's, i 7 920@3.8, 1 water pump, 3 hdd's, 2 monitors, usb mouse, wacom tablet, 4 case fans, 7.1 speakers.
The monitors should not be included in this calculation, nor should the speakers. How much is the rig alone pulling? The 480's in SLI pulled about this, or somewhat less actually. However, my PSU is really efficient. Therefore, the wall pull would be less, as it need less to push the system.
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linuxrouter
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:00 PM
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chrisdglong
Actually, my power supply is really quiet and runs cool. I can put my hand to the back of it when running two 480's and still feel nice cool air. The power supply doesn't break a sweat. Honestly, the 480's power draw, noise, and heat are my main concerns. I would rather not have a high wattage heater in my room, if you know what I mean. Plus, that jet noise is extremely annoying.
That is good. I run PC P&C myself and I agree, the PSU does not break a sweat under load. I do not have the 570 cards, but my 580 is relatively quiet and runs cool at about 60-70% fan speed even while overclocked. I would guess the 570 would run even cooler and as a result you can lower the fan speed some. The high-flow bracket helps some also.
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chrisdglong
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:02 PM
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Also, does anyone know if the length is shorter on the 570 than the 480 / 580? I know that 470 is a smaller card, but is the 570 as well?
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linuxrouter
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:04 PM
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The length is the same at 10.5".
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chrisdglong
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:08 PM
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Or, would it be better to go 6970, as I have a 2560x1440 display. Would the 2gigs of ram, on the 6970, be better for this higher resolution?
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paavonurmi
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:14 PM
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The monitors should not be included in this calculation, nor should the speakers. How much is the rig alone pulling?
The 480's in SLI pulled about this, or somewhat less actually. However, my PSU is really efficient. Therefore, the wall pull would be less, as it need less to push the system.
I don't know, but you should have no problems, I have the Corsair 1200 PSU
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linuxrouter
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:15 PM
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The extra memory would be beneficial at that resolution, especially with AA enabled. The 580 is another option as it has 1.5GB of memory. I game at 2560x1600 and most games are smooth up to around 4x AA. There are a few exceptions where performance is not as great with AA enabled including games like Warhead and Metro 2033. For those I turn off AA.
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chrisdglong
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:19 PM
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linuxrouter
The extra memory would be beneficial at that resolution, especially with AA enabled. The 580 is another option as it has 1.5GB of memory. I game at 2560x1600 and most games are smooth up to around 4x AA. There are a few exceptions where performance is not as great with AA enabled including games like Warhead and Metro 2033. For those I turn off AA.
Yeah, same for my 480. I have to cut AA to get Battlefield BC2 running at online playable frame rates. Yes, it will max it out, but I will be at 40-50 fps. Which is not really my favorite.
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sk2play 
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:20 PM
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I have a Corsair 1000hx and I'm not having PSU issues with two GTX 580's. I also thought it might be a concern. Would your two GTX 570's have one slot space between them? You will notice a level of heat with two of course, but nothing like two GTX 480's on air. The space between them will be a advantage regarding heat. I have a GTX285, for Physx I could hook up, but the cards would be side-by-side-by-side and would produce alot of heat plus the extra power requirement with little gain
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chrisdglong
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:20 PM
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Oh, I almost forgot. I have the Apple Cinema display. Therefore, the mini-display port connection would be nice. I wouldn't have to run the Atlona DP 400 anymore.
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chrisdglong
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:22 PM
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sk2play
I have a Corsair 1000hx and I'm not having PSU issues with two GTX 580's. I also thought it might be a concern. Would your two GTX 570's have one slot space between them? You will notice a level of heat with two of course, but nothing like two GTX 480's on air. The space between them will be a advantage regarding heat. I have a GTX285, for Physx, I could hook up but the cards would be side-by-side-by-side and would produce alot of heat plus the extra power requirement with little gain
Yes, they would be spaced. Since, there really is only a slight drop in performance.
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sk2play
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Re:570 SLI Power Supply?
Friday, January 07, 2011 9:24 PM
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You may wish to hold off for a month or two and check out the GTX 570 with a Display Port connection: http://techreport.com/discussions.x/20206 Edit, Link corrected This GTX 570 dual fan setup will need a slot space between them in SLI and will probably be superclocked to GTX 580 vanilla levels as there competition has already had dual fan setups reviewed with DP connection (namely the Palit Sonic Platinum and Gainward Goes Like Hell editions). Both those cards have a 8+6 PCIe pin requirement needed.
post edited by sk2play - Friday, January 07, 2011 9:42 PM
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chrisdglong
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Re:570 SLI Power Supply?
Saturday, January 08, 2011 4:50 AM
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Sometimes the standard displayport (non-mini displayport) wont work with the ACD. Apple is a pain in the rear with this requirement. Honestly, next time I get a new display (which obviously wont be for a while) I will go with whoever has the most connection options. Apple did the opposite and I learned my lesson. Great picture though.
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