PlayStation 4K SoC Could Feature 2304 Stream processors based AMD Polaris GPU

So the story goes like this, the upcoming upgraded PlayStation 4 is tagged under Codename NEO and is based upon an upgraded CPU, GPU, RAM. The custom SoC chip that empowers it all will get 8 CPU cores, running at 2.10 GHz; and an embedded GPU (IGP) featuring 36 compute units based on "Next-generation Graphics CoreNext" architecture. 

That last bit is interesting as next-gen obviously suggests a new architecture and thus that could be Polaris. I'd still take it with a rather sizable grain of salt as yield wise the Neo S0C would be far cheaper and easier to make the custom SoC with a 28nm fab.

But granted the 36 next-gen GCN compute units (x 64 stream processors per cluster) do sound very familiar and close to Polaris10 "Ellesmere" chip in its speculated Radeon R9 480 configuration with a stream processor count of 2304, double over the 1152 from the current PlayStation 4.

In the documents giantbomb.com received, Sony offers suggestions for reaching 4K/UltraHD resolutions for NEO mode game builds, but they're also giving developers a degree of freedom with how to approach this. 4K TV owners should expect the NEO to upscale games to fit the format, but one place Sony is unwilling to bend is on frame rate. Throughout the documents, Sony repeatedly reminds developers that the frame rate of games in NEO Mode must meet or exceed the frame rate of the game on the original PS4 system. In short Neo at 4K would be a Ultra HD supported mode, yet most content would be upscaled.