It boggles my mind that apple can do 128 bit, 256 bit, and 512 bit wide memory interfaces on thin/light laptops that are price competitive with PC laptops in th

It boggles my mind that apple can do 128 bit, 256 bit, and 512 bit wide memory interfaces on thin/light laptops that are price competitive with PC laptops in the same segment while having excellent battery life. In the previous gen even a relatively low end card like the 3060 Ti has a 256 bit wide memory interface. In the current generation the 4070 (which is a higher in the product stack) is 192 bits. The RTX 3080 (prev gen) is 320 bits wide the 4080 (current gen) is 256 bits. Generally the trend is more cache, less width, and less bandwidth. Which is great ... for things that are cache friendly, but not everything is.