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Power Consumption

We measured the power consumption of computer systems with different graphics cards using a multifunctional panel Zalman ZM-MFC3 which can report how much power a computer (the monitor not included) draws from a wall socket. There were two test modes: 2D (editing documents in Microsoft Word and web surfing) and 3D (the intro scene of the Swamp level from Crysis 3 running four times in a loop at 2560x1440 with maximum visual quality settings but without MSAA). Here are the results:

The tested configurations are comparable in terms of power draw with the exception of the dual-processor Nvidia GeForce GTX 690 which needs 37 watts more than the overclocked Gigabyte GeForce GTX Titan Black GHz Edition. The latter consumes 24 watts more than the reference Titan Black from Zotac which, oddly enough, is the most economical of all, and a mere 9 watts more than the ASUS ROG Matrix GTX 780 Ti Platinum. A 600-watt PSU is going to be sufficient for any configuration with a single-processor graphics card, just as recommended by their manufacturers.


The Gigabyte GeForce GTX Titan Black GHz Edition is the world’s fastest single-processor graphics card. When overclocked, it is even very close in performance to Nvidia’s dual-processor GeForce GTX 690. Notwithstanding the reference PCB design, Gigabyte increased the GPU clock rate by as much as 13.2%, which ensures a performance boost of 6-7%. But the key feature of the card is that it comes with two coolers, one of which is the excellent Windforce 3X 600W whose high performance (even with the overclocked Titan Black) and low noise level are going to be appreciated by ordinary users as well as overclockers.

The accessories to the card include a mouse pad and an HDMI cable. Its packaging is reliable and informative. And its 3-year warranty is going to please the buyer, too. We don’t think there will be too many buyers, though. The Gigabyte GeForce GTX Titan Black GHz Edition is very expensive, which is its only downside, actually. If you find its price too steep, you may want to prefer an overclocked GeForce GTX 780 Ti because it would deliver similar performance.

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