Soldato
Read about this power throttle so as not to exceed the PCIE spec.
Seems to me that Nvidia have some ulterior motive and in essence, throttling is the only way they were able to impliment 512 cuda cores and hence get this card into production.
In reality, will this 300W throttle really affect the cards ability to overclock because if so, seems like Nvidia may have scored an own goal
Let's face it furmark puts an unrealistic load in the GPU, even when highly clocked I doubt we will see any problems in games, if you're a furmark nut the then 580 is not the GPU for you lol
Check this guy out below, 920 core on air and a huge vantage score for a single GPU.