The PS4 has an extra 256MB of DDR3 ram.

[Conina]

fatslob-:O said:

ethomaz said:

fatslob-:O said:

I guess the PS4 is more of a gaming consoles than the WII U is LOL.

That my guesses now but the OS uses 2-cores of the x86_64 CPU and over 2.0GB of the GDDR5.

We don't have the numbers from sony to confirm. Afterall the PS3 used something like 40MB for it's OS.

The PS3 used even over 100 MB for it's OS after the launch. The OS footprint was reduced over the years: http://community.eu.playstation.com/t5/PlayStation-3-General-Discussion/PS3-OS-memory-footprint-slashed/td-p/9874872

I expect similar OS-optimizations for the PS4, XBO, WiiU, 3DS and Vita i the next years.