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AMD Radeon HD 7990 6GB and HD 7970 GHz Edition Video Cards in CrossFireX - Power Consumption Test

AMD Radeon HD 7990 6GB and HD 7970 GHz Edition Video Cards in CrossFireX
We throw a Radeon HD 7970 GHz Edition in with the new HD 7990 6GB dual-GPU video card and look at CrossFireX gaming performance. (NYSE:AMD)
| AMD Radeon GPU in Video Cards | Posted: Apr 29, 2013 6:28 am

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/5/4/5414_42_amd_radeon_hd_7990_6gb_and_hd_7970_ghz_edition_video_cards_in_crossfirex.png

 

Power draw on this three GPU setup is almost identical to the three GPU, three card setup of three HD 7970 non-GHz Edition video cards, and also similar to the two GTX TITAN's in SLI.

 

Considering it is overall faster than the three video card setup, this is a good result. Saying that, we'd still recommend a high quality 1000-watt PSU, something similar to the AX1200 Corsair unit that we use.

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