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AMD Radeon HD 7870 2GB Reference Video Cards in CrossFire - Power Consumption Test

We pair the brand new AMD Radeon HD 7870 up with a second video card and see how CrossFire performance is on the new model.

| AMD CrossFire Articles in Video Cards | Posted: Mar 6, 2012 4:06 am
Manufacturer: AMD

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.

 

TweakTown image content/4/5/4597_42_amd_radeon_hd_7870_2gb_reference_video_cards_in_crossfire.png

 

Power draw at idle continues to be strong with just 200 watts being drawn. Looking at load we do see a strong jump in power draw coming in at just over 500 watts.

 

Considering the amount of power coming out of the setup, though, this is still a very impressive number thanks to the 28nm GPU technology.

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