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Ars Technica: Although it can't use the name "ultrabook" because Intel owns the trademark, AMD plans to release a line of chips that could power "ultrathin" PCs to compete with Intel-based ultrabooks. And while ultrabooks currently cost $800 and up, AMD-based ultrathins could cost just $500.
At CES, AMD showcased its Trinity line of chips, each of which contain both a CPU and a GPU. They will come in two versions: a low-power 17 W version for ultrathins and higher-power 35 W version for regular laptops. The company has not said when the chips will actually hit the market.