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Updated Video Card Testing Methodology
Video, Power, and Overclocking
Video playback means just that: surprisingly, some video cards can't play movies well at all. Until perfect video acceleration becomes a given, this has a place for home theater-goers and YouTube enthusiasts alike. HQV HQV is a semi-subjective test of video playback, for both standard- and high-definition video. It covers all video encodings in a collection of video clips that you watch and score (on a handy included score-card). It's a guide that teaches you to notice how badly video playback can be, which is unfortunate for everyone who uses it. This is the real-world counterpart to PCMark Vantage's abstract score. Power and Noise To rate the power consumption of the video cards, we use a Kill-A-Watt wall meter and compare the video card to a motherboard with integrated video. All power consumption numbers are taken from the wall, then reduced: the actual power consumption of hardware is about 80% of the amount of power used, because of the losses that happen in the power supply. We publish the corrected power consumption results. They're not 100% accurate, and even though we use 82+ power supplies, we'll err on the side of caution: 81%--meaning that if anything, the hardware uses less power than we figure. Overclocking For overclocking we just use the video card driver's built-in overclocking utility, seeing how most people who overclock will, too. It is totally reasonable that anyone can achieve higher results with a lot of aftermarket tweaking, but we just go for the simple method.
Page 1: Introduction, The Card & Bundle
Page 2: Specifications and Setup Page 3: DirectX 10 Titles Page 4: DX9, OpenGL, and Synthetics Page 5: Video, Power, and Overclocking Page 6: Conclusion 
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