Under normal use the AMD 560X discrete graphics chip gets all 4GB of its VRAM saturated.
AMD 560X 4GB VRAM
information gathered using iStat Menus 6.2
Temperature 113˚F
Core Clock 214 MHz
Memory Clock 300 Mhz
Memory ~3.6GB
Processor ~5%
Under normal use the AMD 560X discrete graphics chip gets all 4GB of its VRAM saturated.
AMD 560X 4GB VRAM
information gathered using iStat Menus 6.2
Temperature 113˚F
Core Clock 214 MHz
Memory Clock 300 Mhz
Memory ~3.6GB
Processor ~5%