SLI power consumption

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XxPeterGriffinxX

XxPeterGriffinxX

Honorable
Feb 15, 2013
24
0
10,520
I plan to SLI my GTX 650Ti BOOST and i now the wattage of my PSU is enough but im not sure if the AMP is a single card uses 24A so would 2 cards use 48A?
 
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V
When the manufacturer recommends a power supply with minimum 24A rating on the +12V rail, they are taking into account the rest of the system too.
The requirement depends on your other components. I'll give two scenarios below that cover most people.

SLI GTX 650 To boost (2 x 134W) + Intel 84W CPU + other components 40W = 392W
To stay under 80 % of rated load, minimum power supply required is 500W with at least 41A rating on the combined +12V rails.
Recommend a good quality 550W power supply.

SLI GTX 650 To boost (2 x 134W) + AMD 125W CPU + other components 40W = 433W
To stay under 80 % of rated load, minimum power supply required is 550W with at least 45A rating on the combined +12V rails.
Recommend a good quality 600W power supply.
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VincentP

Splendid
Oct 18, 2013
4,105
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26,965
When the manufacturer recommends a power supply with minimum 24A rating on the +12V rail, they are taking into account the rest of the system too.
The requirement depends on your other components. I'll give two scenarios below that cover most people.

SLI GTX 650 To boost (2 x 134W) + Intel 84W CPU + other components 40W = 392W
To stay under 80 % of rated load, minimum power supply required is 500W with at least 41A rating on the combined +12V rails.
Recommend a good quality 550W power supply.

SLI GTX 650 To boost (2 x 134W) + AMD 125W CPU + other components 40W = 433W
To stay under 80 % of rated load, minimum power supply required is 550W with at least 45A rating on the combined +12V rails.
Recommend a good quality 600W power supply.
 
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