No$.1000$ Mbps and $1$ gig, or $1$ Gbps$,$ denote the same internet speed, just in different units of measurement. Both Gbps and Mbps are measurements of data transfer or$,$ in other words, internet speed. Mbps stands for megabits per second. Gbps stands for gigabits per second. $1$ Gbps$,$ or $1$ gig, is equal to $1,000$ Mbps$.$