I don't know which can pay more, Apple iPhone vs Nvidia DGX. Perhaps even if Nvidia can pay more than Apple, their chip is so big so not suitable for first bleeding edge chip.
Well, Apple's revenue is $89B per quarter, NVIDIA's record-breaking revenue recently was $13B, so here's your answer. NVIDIA might have high margins on some of their products, but Apple has both high margins and high volume. DXG is a niche product, but everyone owns an iPhone or a Macbook.