Several factors, from power constraints and product development to plain-old physics, led handset makers to wait a few years before following PC chip makers to multicore.

• 受功率束缚、产品开发和物理学方面一些老问题等因素的影响，手机生产商在个人电脑用芯片生产商推出多核新品好几年后才跟了上来。