You must be very new to overclocking because some of us have been doing BCLK/FSB overclocking for decades. I literally, have an X58 system running in my workshop with the bus overclocked 120% and it has been running like that for 7 years now.
It's called supersampling and it does increase the overall quality of the image significantly. Say you have a 1440P monitor and your VGA is capable of running a certain game at very high FPS in 4K. Then supersampling stage can render the image in 4K and downsample it to 1440P which significantly...
Thank fuck! Yes, please!!!
Because it's unintuitive, inefficient (In many ways, including system power consumption) and a general pain in the ass? I don't hate any single platform. I just hate the fact that I have to have half a dozen of them.