Data rate in Stratix2GX

In basic mode, in the first menu (General) I have to enter an input clock frequency (which is the frequency of the clock I connect to pll_in_clock pin), and data rate. Now if I have 8 channel input bus, and each channels data rate fo example is 80Mbps, Which data rate I should enter 80Mbps, or 80*8 Mbps (as I understand the data rate in the channel will be larger than 80*8 Mbps since there are syncronization bits that are transmitted)?