This is assuming that you're running something that isn't using ALL of the ram, at which point Sony's ram outperforms. Sony's system is likely much better/faster at refreshing its ram since that's what its specifically designed for, without taxing the CPU.
It's likely that PS5 won't actually
need to split its ram,
especially if they're really targeting what they said in the presentation, "loading data as fast as it takes a player to turn".
And if that's the case sony's ram will still outperform the SX.
If we're to take this at face value? And the system can completely refresh 16Gb in ONE second?
There's no reason for PS5 to ever split its ram for
anything.
I'm almost positive that they only intend for the 10gb to be used for games, the OS will never touch the fast ram.
Guys, did we watch the same presentation?
How the hell do people think
anything shown in the PS5's architecture could possibly be "last minute"? And "last minute overclock" just shows that you don't actually understand how the system works, as usual.