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Nick Baker ha scritto:I'm Nick Baker, I manage the hardware architecture team. We've worked on pretty much all instances of the Xbox. My team is really responsible for looking at all the available technologies.

Digital Foundry ha scritto:CPU-side, I'm curious. Why did you choose eight Jaguar cores rather than, say, four Piledriver cores? Is it all about performance per watt?

Nick Baker ha scritto:The extra power and area associated with getting that additional IPC boost going from Jaguar to Piledriver... It's not the right decision to make for a console. Being able to hit the sweet spot of power/performance per area and make it a more parallel problem. That's what it's all about. How we're partitioning cores between the title and the operating system works out as well in that respect.

Digital Foundry ha scritto:Is it essentially the Jaguar IP as is? Or did you customise it?

Nick Baker ha scritto:There had not been a two-cluster Jaguar configuration before Xbox One so there were things that had to be done in order to make that work. We wanted higher coherency between the GPU and the CPU so that was something that needed to be done, that touched a lot of the fabric around the CPU and then looking at how the Jaguar core implemented virtualisation, doing some tweaks there - but nothing fundamental to the ISA or adding instructions or adding instructions like that.

Jena Plisskin ha scritto:Il PR di questo progetto deve essere Ahatha Christie