> In fact, every computer without a discrete GPU uses a unified memory model these days! On PCs some other hardware (notably the SSD) comes with its own memor

> In fact, every computer without a discrete GPU uses a unified memory model these days! On PCs some other hardware (notably the SSD) comes with its own memory. But here it's shared with the main DRAM too. This is not necessarily a performance improvement, it can avoid copies but also means less is available to the CPU.