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Is this PSU not enough?

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October 24, 2012 4:33:39 PM

Hi guys,

I recently purchased a 600w Corsair Gaming PSU, but i dont think it will be enough for the system i have planned on, i think i mistook it for what i thought was perhaps the 700w version after alot of pressing back and forward on the website i got it from....

Anyway i would hope someone could clarify whether it will be able to power these specs?

CPU: i7 3770k 8m cache
GPU: EVGA GTX 680 2GB (or the GTX 670 by Gigabyte 2GB)
Memory: 250GB Vertex 4 SSD
Mobo: Asus Sabertooth Z77
Ram: Corsair Vengeance 4x4GB DDR3

I was even thinking of splashing on the GTX 690 as pay day Friday! Im not sure though if the value of it is worth it, but if it lasts for some years i can see it being a good buy, im sure 600w isnt enough to power that thing!


Any help appreciated as ill sell on this 600W as im past the return date :/ 

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October 24, 2012 4:37:18 PM

nVidia itself recommend 500W for a single 670.
http://www.nvidia.in/object/geforce-gtx-670-in.html#pdp... Here is Guru3D's power supply recommendation:

GeForce GTX 690 - On your average system the card requires you to have a 750 Watt power supply unit.
GeForce GTX 690 SLI - On your average system the cards require you to have a 950 Watt power supply unit as minimum.

If you are going to overclock the GPU or processor, then we do recommend you purchase something with some more stamina. Source: http://www.guru3d.com/articles_pages/evga_geforce_gtx_6...
October 24, 2012 4:45:09 PM

thanks very much, just to clarify is most of the power from the PSU soley for the GPU?
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October 24, 2012 4:49:18 PM

No for example the 690 test system is based on a power hungry Core i7 965 / X58 system. This setup is overclocked to 3.75 GHz. Next to that we have energy saving functions disabled for this motherboard and processor (to ensure consistent benchmark results). On average we are using roughly 50 to 100 Watts more than a standard PC due to higher CPU clock settings, water-cooling, additional cold cathode lights etc.

We'll be calculating the GPU power consumption here, not the total PC power consumption.

Measured power consumption

System in IDLE = 151 W
System Wattage with GPU in FULL Stress = 403 W
Difference (GPU load) = 252 W
Add average IDLE wattage ~20 W
Subjective obtained GPU power consumption = ~ 272 Watts

Mind you, the system wattage is measured at the wall socket side and there are other variables like PSU power efficiency. So this is a calculated value, albeit a very good one.
October 24, 2012 4:49:23 PM

Jdizzy135 said:
Hi guys,

I recently purchased a 600w Corsair Gaming PSU, but i dont think it will be enough for the system i have planned on, i think i mistook it for what i thought was perhaps the 700w version after alot of pressing back and forward on the website i got it from....

Anyway i would hope someone could clarify whether it will be able to power these specs?

CPU: i7 3770k 8m cache
GPU: EVGA GTX 680 2GB (or the GTX 670 by Gigabyte 2GB)
Memory: 250GB Vertex 4 SSD
Mobo: Asus Sabertooth Z77
Ram: Corsair Vengeance 4x4GB DDR3

I was even thinking of splashing on the GTX 690 as pay day Friday! Im not sure though if the value of it is worth it, but if it lasts for some years i can see it being a good buy, im sure 600w isnt enough to power that thing!


Any help appreciated as ill sell on this 600W as im past the return date :/ 



It's not enough for me. I just bought a Seasonic 1050W for my recent build.
October 24, 2012 4:52:29 PM

IF you gonna run 1 gpu as 670 or 680 with a STOCK CPU a 600W is enough. If u plan to go SLI or do some more OC, go with a 750W or 850W.
October 24, 2012 5:37:16 PM

It's enough to run a single 670 or a single 680 it's not enough to run a 690
!