There are some mistakes...
GDDR5 is not that expensive...
PS4's APU is cheaper than Xbone's APU by a good margin...
The cost of DDR3 will increase due the lower production while the GDDR5 will decrease due the massive production... the PS4 APU will be always cheaper unless MS can die-shrink faster than Sony but both are made by TSMC so both will die-shrink when TSMC do that.







