Rumour: PS4 to feature AMD GPU a gen ahead of nextbox

[Pemalite]

drkohler said:

Viper1 said:

Scoobes said:

Looks like the highest power draw (from the table) is 209 Watts during gameplay. That's still ridiculously low compared to the PSU. Wonder what they were thinking in that regard.

Couldn't tell you.  My guess is they wanted enough overhead to handle power spikes,

No, that is basic foresight. If you look at the efficiency vs load curve of any PC power supply, you will see that they all have maximum efficiency between 40%-60% of maximum output. Basically around half maximum load, the PowerFETs operate very stable and run "cool". Not having hot FETs in a tight box like the PS3 is almost a must if you don't want to melt the plastic.

Plus... Capicators do age which reduces the efficiency in a Power Supply unit, sometimes upwards of 30% or more.
If Sony wants a console to last a decade or more, then they need to account for these things.