Power Consumption

Power consumption is something that is important to look at when evaluating a graphics card, and because these 8800s are such high performers, they create very high power levels as well.

We tested power consumption for these parts in the same way we usually do, by measuring the total power draw of the system with each of the cards installed in two different states. The first state is with the system idle (no other programs running) and the second is while the GPU is under stress testing. We use a few of the benchmarks from 3DMark06 to stress the GPUs to find out their power consumption under load. Because we are measuring the wattage of the entire system and not simply the cards, we can only get a general idea of the type of power levels of these cards.

Idle Power

Load Power

Looking at the data, we immediately see that the Sparkle Calibre 8800 GTX is the highest on the graphs for its power consumption. This was expected because of its peltier cooler. Most of these cards got results that remained around 180 Watts while the system was idle, and 280 Watts while the system was under load. The XFX GeForce 8800 GTS naturally got the lowest levels of the bunch, which makes sense given that it's the lone GTS out of a roundup of primarily GTX cards. Out of the 8800 GTXs though, the ASUS EN8800 GTX seemed to draw the least amount of power under load, and the reference design Sparkle 8800 GTX pulled the least while idle.

Overclocked Performance Heat
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  • yacoub - Monday, November 13, 2006 - link

    I was surprised the eVGA card too the lead since the MSI had a much higher memory clock. I guess these cards are nowhere near being fillrate limited, so the core clock boost is more important? I'm not sure if that's the right conclusion to make.

    Also lol @ the 1950XTX's heinous noise and heat levels. ;)

    The power consumption reduction from its die-shrink (right?) over the 1900XTX is nice though.

    Very helpful article. Obvious conclusion: Stay away from the Caliber, lol.
  • kalrith - Monday, November 13, 2006 - link

    On page 5, it says that the Calibre "did get a core boost of 31MHz on the core clock". If the stock speed is 575 and the overclock is 631, shouldn't it be a boost of 56MHz?

    Also, on page 5 the Calibre's memory overclock is listed as 1021MHz, and on page 6 it's lists as 914MHz.
  • Josh Venning - Monday, November 13, 2006 - link

    Thanks for pointing out the errors on page 5, they've been fixed.

  • Kyteland - Monday, November 13, 2006 - link

    On page 2: "First we have the (insert exact card name here) from BFG."

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