the two blue and one white are video slots. pci modes for video slots can be pci 2.0 or 3.0 speeds. depending on the mb chipset and the cpu that plugged in. the video ports can run from 16x mode down to 4x mode.
the small slot is pci-express slot it can run at 1x mode or 4x mode.
the last slot by itself is a pci slot.