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MSI Radeon HD 7970 Lightning 3GB Video Cards in CrossFire Overclocked

By: Shawn Baker | AMD CrossFire Articles in Video Cards | Posted: Apr 3, 2012 3:48 pm
Manufacturer: MSI

Power Consumption Test



Using our PROVA Power Analyzer WM-01 or "Power Thingy" as it has become quickly known as to our readers, we are now able to find out what kind of power is being used by our test system and the associated graphics cards installed. Keep in mind; it tests the complete system (minus LCD monitor, which is plugged directly into AC wall socket).


There are a few important notes to remember though; while our maximum power is taken in 3DMark06 at the same exact point, we have seen in particular tests the power being drawn as much as 10% more. We test at the exact same stage every time; therefore tests should be very consistent and accurate.


The other thing to remember is that our test system is bare minimum - only a SSD hard drive is used with a single CD ROM and minimal cooling fans.


So while the system might draw 400 watts in our test system, placing it into your own PC with a number of other items, the draw is going to be higher.




Power draw on the MSI HD 7970 Lightning is pretty high and you can see two cards here are tipping over 900 watts with no issue when overclocked.


We don't see it as too much of a problem for the simple fact if you're buying a high-end setup like this you should already have a high-end PSU or at least be buying one at the same time. Needless to say, make sure you do.

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