littlejoelgriffo :
It's DVI-D dual link.
But how is this better than VGA? the monitor seems sharp, smooth in-game and isn't giving me any issues eg. Tearing.
Digital video signals are not significantly superior to analogue video signals at low resolutions (<= 1920x1080) but as the resolution and colour depth increases, digital signalling wins out. The analogue signal is attenuated and degraded by the DAC hardware on the transmitter, the cable, and the ADC hardware on the receiver. Each introduces a small error into the analogue symbol which can compound into the symbol that is received by the signal sink being slightly different than the symbol that was sent by the signal source.
For example, the signal source might send a colour component with a value of 127 using an analogue voltage level of 0.3472 volts (0.7 volt full scale, 8 bits per symbol, 2.73 millivolts between symbols) but the characteristics of the transmission network may result in this being interpreted as 125 which is slightly less intense than the image source intended.
If a very low value is sent following a high value (a high contrast edge), the low value may be pulled upwards due to the cables internal capacitance and low-pass nature. For example, an intensity of 42 is sent immediately following an intensity of 220. The receiver may interpret these as 218 and 58. The same error occurs when a high intensity symbol follows a low intensity symbol.
These problems are less prevalent at lower pixel clock rates using shorter cables, and more prevalent at higher pixel clock rates with longer cables. Digital symbols can have errors in individual bits, but these bit errors are very rare and only occur occasionally whereas analogue symbols are always degraded to some extent.