SPEC CPU2017’s floating point workloads throw a wrench into the works. Cortex X925 falls behind Zen 5 on enough tests to leave AMD’s latest and greatest core with a clear victory. In Arm’s favor, they are able to keep pace with Intel’s Lion Cove.
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386 performance vs 486It also helped that a fast 386 could keep pace with the slowest 486s. The 40 MHz version of the Am386 enjoyed an especially long shelf life as a value CPU. The 486 was more efficient than the 386 but it wasn’t twice as efficient, so a 40 MHz 386 was faster than a 20 MHz Intel 486SX, and roughly comparable to a 25 MHz 486SX. It also held the additional advantage of taking an external math coprocessor. Part of the point of the 486 was the integrated math coprocessor improved performance, but an external math coprocessor was faster than none. So while a 40 MHz 386 plus a 40 MHz 387 wasn’t as fast as a full 486DX at 25 MHz, depending on whose FPU you used, you could get 75-90 percent of the performance at less than 75 percent of the price.
举例来看，纯电领域，丰田推出了智能纯电SUV的铂智系列，供应商列表中不乏比亚迪、鸿蒙座舱等中国元素；氢能源领域，丰田与中国重汽共同开发了49吨氢燃料电池重卡；Robotaxi领域，丰田与小马智行合作开发的量产版L4级无人驾驶铂智4X；此外，在储能、能源管理领域，丰田与中国也有多项技术合作开花结果。