This is what I expect the PS4 will look like in terms of specifications.
Cell:
2 PPU (but each would be at least twice as fast as the current one)
16 SPEs:
Of those 16, 4 would be reserved for the OS and for the future interface technologies which require a lot of floating point power to run and there would be no SPEs turned off to improve yields as they work better in banks for 4 due to their bus layout.
GPU:
Custom designed, more fixed function than other designs as there is no point duplicating compute ability between the CPU and GPU when the GPU compute functions wouldn't need to be used. Essentially an even more RSX like RSX with more of the heavy lifting being done by the Cell instead.
Price: $300 for the basic SKU and $400 for an advanced version. They will use Blu Ray but they won't use a SSD as they are expensive and they have very limited space for media centre functionality.
Tease.
