Laptops use the APU’s GPU to save power instead of keeping the larger DGPU active, it also spreads out the heat by having them separate.

For larger chips for desktops, memory bandwidth/latency and yields becomes an issue.

By combining a GPU and CPU, each part can have it’s own defects, increasing your possible product stack for a small market segment.

CPUs like low latency, GPUs like high bandwidth. Quad channel DDR5 is still like, 150GB/s. A 6600XT and 7600M are 256GB/s. You’d want 300-400GB/s of memory bandwidth while being low latency, otherwise you’re losing performance for no reason.

Laptops use the APU’s GPU to save power instead of keeping the larger DGPU active, it also spreads out the heat by having them separate.

For larger chips for desktops, memory bandwidth/latency and yields becomes an issue.

By combining a GPU and CPU, each part can have it’s own defects, increasing your possible product stack for a small market segment.

CPUs like low latency, GPUs like high bandwidth. Quad channel DDR5 is still like, 150GB/s. A 6600XT and 7600M are 256GB/s. You’d want 300-400GB/s of memory bandwidth while being low latency, otherwise you’re losing performance for no reason.