It's really hard to build a custom processor with decent performance these days. There are very few teams that can do it, and it takes way more investment tha

It's really hard to build a custom processor with decent performance these days. There are very few teams that can do it, and it takes way more investment than normal ASIC design. The people who can do it largely work for Intel, AMD, IBM, some at Apple, and probably a few other major shops. So I suspect it would be hard for Samsung to build a custom ARM processor unless they teamed up or bought a team that already has this specialized skill. That's what Apple did...