If MS switches to GDDR5 now, did Sony make a silly mistake?

[drkohler]

platformmaster918 said:

Kynes said:

Why? There is something that most people seem to forget, right now there aren't on the market 4 Gb GDDR5 chips, so Sony will have to use 16 chi

If you shop around, you'll note that gddr5 chips come in 1Gbit and 2Gbit sizes. It takes 32 chips to get 8GByte (=64Gbit) of memory. That is a lot of real estate on a console pcb. I doubt stacked memory (if available at all) would be cheaper than real estate, in the end.