Jonjon627

Honorable
May 6, 2012
18
0
10,510
I'm wondering if my PSU will be sufficient enough for these 2 GPUs in SLI config

PSU:http://www.newegg.com/Product/Product.aspx?Item=N82E16817341052&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-Power%20Supplies-_-OCZ%20Technology-_-17341052&AID=10440897&PID=3938566&SID=

GPU x2:http://www.newegg.com/Product/Product.aspx?Item=N82E16814127675

And if its not, is it for these GPUs in SLI

GPU x2:http://www.newegg.com/Product/Product.aspx?Item=N82E16814130687
 
Solution


Power consumption then, two GPUs consume roughly 300 Watts whilst three GPUs use roughly 450W, add to that the rest of your system (processor, chipset peripherals) at say 200 Watts and you'll find yourself in the 650~700 Watt power consumption region when playing a hefty game. If you plan to overclock CPU and GPUs, then make sure you add another 200W onto your PSU requirements. Our recommendation really is to go with an 800~900 Watt power supply if you plan to go with 3 GeForce GTX 670 cards and a beefy system. Overclocking equals increased voltages equals increased power consumption...
The GTX 670s actually consume less power than the 570s. An SLI of GTX670s requires a 750W PSU with at least 48A on the 12V rails and four 75W 6-pin PCIe power connectors. The OCZ ZT 750W PSU with 6+2pin PCIe power connectors and 62A on the 12V rail is sufficient for your planned build.
 

Jonjon627

Honorable
May 6, 2012
18
0
10,510

So 2 670s will work fine?
BTW my build is: http://pcpartpicker.com/p/8HNn but this build only has 1 670
:bounce:
 


Power consumption then, two GPUs consume roughly 300 Watts whilst three GPUs use roughly 450W, add to that the rest of your system (processor, chipset peripherals) at say 200 Watts and you'll find yourself in the 650~700 Watt power consumption region when playing a hefty game. If you plan to overclock CPU and GPUs, then make sure you add another 200W onto your PSU requirements. Our recommendation really is to go with an 800~900 Watt power supply if you plan to go with 3 GeForce GTX 670 cards and a beefy system. Overclocking equals increased voltages equals increased power consumption equals much more load on the PSU.

though they are extremely understating the cards wattage draw and overstating the rest of the computers draw, the rest sounds about right. You can probably get away with an overclocked cpu and 2 gpus at stock, but my knowledge of power consumption past that point is probably very limited, as i usually work and think with budget builds.
 
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