670 SLI Power Supply?

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leoweisman

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Feb 24, 2013
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So I have a Corsair TX 650 v2 power supply, and a MSI GTX 670 PE GPU. Will my PSU (80 plus Bronze) be enough for 2 of these cards SLIed, or will I need more efficiency/higher wattage?

System:

i5-3570k
CM Hyper 212 EVO
ASrock Z77 Extreme4
2x4GB Corsair Vengeance 1600Mhz
Seagate Barracuda 7200RPM 1TB
Samsung 840 120GB SSD
Samsung DVD Drive
NZXT Phantom 410
 
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Traciatim

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Yeah, like previously said . . . should be fine. I have a pretty similar machine on an 80plus bronze PSU and it barely pulls more than 300 watts from the wall when running benchmarks or playing games:

3dMark and Metro2033 Benchmark:
3dMark_vs_Metro_zps93f53761.jpg


Playing Planetside 2:
PS2-Wattage_zps7a85c8fd.jpg


So even if you throw another full 200w on that it's still only 500 from the wall, which puts it near 425 (@85% efficient) delivered and your PSU is rated over 600 on the 12v lines.
 
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bigcyco1

bigcyco1

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GeForce GTX 670 - On your average system the card requires you to have a 500 Watt power supply unit.
GeForce GTX 670 2x SLI - On your average system the cards require you to have a 700 Watt power supply unit as minimum.


Remember, if you are going to overclock the GPUs or processor, then i do recommend you purchase something with some more stamina.
 
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Traciatim

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It doesn't require it, they have to recommend that because they have to account for all those $19.99 walmart quality supplied that are actually 350's labelled as 500's. As seen in my charts above, a single card on an overclocked 3570k barely pulls 300 watts from the wall on an 85% efficient supply. which means it's actually only supplying about 255 to the machine.


 
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Traciatim

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It's a single rail design, just use molex adapters.


 
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leoweisman

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Damnit I forgot about that... its just that I was going to get a 7970 (something like the new MSI one or a Dual-x/Vapor-x), but I've heard that all the recent 7970 cards have had horrible ASIC scores, OC ability (not able to get over 1200Mhz core usually, you need to get lucky, and also heat issues), and I had purchased my PSU based on a 7970 power requirement... I can't really afford a 680 at the moment unless there are any good ones near $400 (I wouldnt be willing to spend past $450, but really $400 is my price point). Anyone have suggestions? I guess I could just get a good 670 and have some overhead on the PSU...

Thanks!
 
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leoweisman

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Feb 24, 2013
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Damnit I forgot about that... its just that I was going to get a 7970 (something like the new MSI one or a Dual-x/Vapor-x), but I've heard that all the recent 7970 cards have had horrible ASIC scores, OC ability (not able to get over 1200Mhz core usually, you need to get lucky, and also heat issues), and I had purchased my PSU based on a 7970 power requirement... I can't really afford a 680 at the moment unless there are any good ones near $400 (I wouldnt be willing to spend past $450, but really $400 is my price point). Anyone have suggestions? I guess I could just get a good 670 and have some overhead on the PSU...

Thanks!
 
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bigcyco1

bigcyco1

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A $19.99 power supply couldn't power a gtx 670 :lol: On a serious note i know what 670's need but thank you for the effort.

 
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bigcyco1

bigcyco1

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MSI's GTX 670 Power Edition uses the famous Twin Frozr IV cooler from the MSI Lightning and comes with a large clock speed boost out of the box, making its default clock speed even higher than GTX 680 stock clocks.That would be a solid choice for the price imo they currently are going for $389.99 a piece that doesn't look unreasonable, given the improved cooling and higher clocks but it's up to you.Here some old reviews of the card OC if you're interested.


http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/56546-msi-gtx-670-power-edition-oc-review-20.html (670 PE OC)

http://www.guru3d.com/articles_pages/msi_geforce_gtx_670_power_edition_oc_review,24.html (MSI 670 PE Overclocking)



 
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