Some back of the envolope math, Apple sells roughly 30 million macbooks per year [1], lets say they average out to 16gb per unit, their demand is about 500 petabytes of ram.
A single rack of NVIDIA’s GB300 uses 20TB of HBM3E and 17TB of LPDDR5X. There could easily be a thousand racks of these in a large datacenter.
So an approximate entire years worth of ddr5 ram demand from Apple equals approximately 1 single datacenter.