Arm has announced its latest architecture, the 64bit-only Armv9.2, and three grades of processor built on it that can have software switched across them on-the-fly (Arm’s big.Little concept) to instantly trade power for performance inside phones. At the top-end of single-thread performance will be Cortex-X4, then Cortex-A720 in the middle, and Cortex-A520 at the power-saving ...
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