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AMD Working Stripped-Down PlayStation 4 SoC for PCs
PlayStation 4, although based on the x86 CPU machine-architecture, doesn't conform to any known PC specification. It uses 8 GB of GDDR5 memory as both system and graphics memory, several of its interfaces are out of specs of anything that can be implemented on a PC motherboard. Therefore, its SoC can't simply be soldered onto a PC motherboard. AMD would have to first strip the SoC of Sony's share of the development (or risk having to license it).
Next up, it would have to strip the chip of its most interesting component, the unified GDDR5 IMC. JEDEC does not have a GDDR5 DIMM specification, nor would motherboard makers be interested in hard-wiring expensive GDDR5 memory chips on to their motherboards and render the memory subsystem non-expandable......