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Overclocking Potential

We used EVGA Precision X version 4.1.0 to set the highest power and temperature targets for our Zotac GeForce GTX Titan AMP! Edition.

We can remind you that the reference card from Nvidia had managed to overclock to 972/1011/7308 MHz, which is quite a good result. The Zotac added 60 MHz to its GPU frequency and 640 MHz to its memory frequency, so its resulting clock rates were somewhat lower than the Nvidia’s:

Well, we just were not lucky with our sample of the Zotac card. Its temperature didn’t change after we overclocked it:

Power Consumption

We measured the power consumption of our testbed equipped with different graphics cards using a multifunctional Zalman ZM-MFC3 panel which can report how much power a computer (without the monitor) draws from a wall outlet. There were two test modes: 2D (editing documents in Microsoft Word or web surfing) and 3D (four runs of the introductory “Swamp” scene in Crysis 3 game at 2560x1440 with maximum image quality settings, but without MSAA).

The power consumption of a system with Zotac GeForce GTX Titan AMP! Edition was compared with that of systems with ASUS GeForce GTX 680 DirectCU II TOP and reference NVIDIA GeForce GTX Titan. We also checked out the power requirements of two slightly overclocked Titans.

People who build SLI tandems out of two GeForce GTX Titan will surely have a 1000W power supply of some Platinum-certified series, but it turns out that such a configuration can be easily powered even by an 800W PSU. And we’re talking about the peak load here. In the majority of other tests, the power consumption of that configuration was 710 to 730 watts. Talking about the single cards, the pre-overclocked Zotac needs a mere 11 watts more than the reference Nvidia.

Now let’s see what performance we can expected from graphics cards that cost as much money as a high-quality latest-generation 55-inch 3D TV-set!

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