> Another intriguing aspect is the separate CPU and GPU design. If true, this essentially means M5 will not use a unified memory architecture (UMA) shared between the CPU and the GPU.
This does not follow. Intel is shipping unified memory processors with CPU cores and GPU cores on separate chiplets but still sharing the same memory controller (on a third chiplet, for Meteor Lake and Arrow Lake). AMD is about to launch Strix Halo, a high-end mobile processor that is rumored to consist of one or two CPU chiplets and an IO die with a big GPU and 256-bit memory controller.
This does not follow. Intel is shipping unified memory processors with CPU cores and GPU cores on separate chiplets but still sharing the same memory controller (on a third chiplet, for Meteor Lake and Arrow Lake). AMD is about to launch Strix Halo, a high-end mobile processor that is rumored to consist of one or two CPU chiplets and an IO die with a big GPU and 256-bit memory controller.