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Banias, which will be sold under the Pentium-M name, differs substantially from its predecessors, both from a technological perspective and in terms of how it will be marketed. Earlier Intel notebook chips were essentially desktop chips enhanced for notebook use. They consumed less power than their desktop counterparts. Laptops containing them, however, could still only run two to four hours on a battery charge. Pentium-M, by contrast, was designed specifically to fit into notebooks. Subsections of the chip go into sleep mode when not in use to conserve energy. Some Pentium-M notebooks will go as long as six hours without a battery charge.