That "based on A10 system and base platform" gives me chills.
An A10 system is weak... the latest A10 in the market is a little more powerful than Wii U but even so it's week for 1080p@60 in 3D.
What I'm guessing is the A10 for PS4 will be customized to work with a better integrated GPU... instead a A10 with HD 7660D @ 384SPs I guess the PS3 will use a A10 with 7870M @ 512SPs.
Or to match my expectations: HD 7870 desktop edtion with 1280SPs (overpower).
The CPU is a Quad-core @ 3.xGhz