Performance and power efficiency starts with good branch prediction. Arm knows this, and X925 doesn’t disappoint. Its branch predictor can recognize extremely long repeating patterns. In a test with branches that are taken or not-taken in random patterns of increasing lengths, X925 behaves a lot like AMD’s Zen 5. AMD’s cores have featured very strong branch predictors since Zen 2, so X925’s results are impressive.
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比如，硅谷科技巨头如Google DeepMind或Meta，倾向于赋予技术领袖极大的自治权，容忍甚至鼓励内部的全栈探索，以维持其在基础科学领域的领先地位。