A Fast, Energy-Efficient Z-Comparator

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dc.contributor.authorHensley, Justinen_US
dc.contributor.authorSingh, Monteken_US
dc.contributor.authorLastra, Anselmoen_US
dc.contributor.editorMichael Meissner and Bengt-Olaf Schneideren_US
dc.date.accessioned2013-10-28T10:03:37Z
dc.date.available2013-10-28T10:03:37Z
dc.date.issued2005en_US
dc.description.abstractWe present a fast and energy-efficient z-comparator that takes advantage of the fact that the result of most depth comparisons can be determined by examining just a few bits. This feature is made possible by the use of asynchronous logic, which enables the comparator to rapidly compare bits until the result is clear and then stop. Using depth data from well-known computer games, SPICE simulations indicate that our comparator consumes only 25% of the energy and operates 1.67 times faster, on average, compared to an equivalent synchronous design. The comparator design is used to illustrate a more general design principle, compute on demand, which can potentially enable graphics hardware to be faster and more energy-efficient.en_US
dc.description.seriesinformationGraphics Hardwareen_US
dc.identifier.isbn1-59593-086-8en_US
dc.identifier.issn1727-3471en_US
dc.identifier.urihttps://doi.org/10.2312/EGGH/EGGH05/041-044en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.1 [Computer Graphics]: Hardware Architectureen_US
dc.titleA Fast, Energy-Efficient Z-Comparatoren_US
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EGGH05: SIGGRAPH/Eurographics Workshop on Graphics Hardware 2005