VG, don't forget the power of synergy.
Instead of going to two separate companies for the discrete controllers and
PHYs - it's more one stop shopping. But it's better than just buying milk
and bread in the same store - there's real technical advantages for the same
company designing both.
It's already starting to work:
<<The Rambus demonstration involved the company’s silicon-proven GDDR6 PHY implemented using one of TSMC’s 7 nm process nodes, accompanied by Northwest Logic’s GDDR6 memory controller and GDDR6 chips from an unknown maker. According to a transmit eye screenshot published by Rambus, the subsystem worked fine and the signals were clean.
Both GDDR6 controller and PHY can be licensed from Rambus by developers of SoCs, so the demonstration is both a testament to how well the company’s highly-integrated 7 nm GDDR6 solution works, and a means to promote their IP offerings.>>