No, 3Mbps is not the same as 300 Mbps. While 300 Mbps stands for 300 Megabits per second, 3 Mbps stands for 3 megabits per second. A 3Mbps is equal to 0.375 megabytes or 375 kilobytes every second, while a 300 Mbps is equal to 37.5 megabytes or 37500 kilobytes per second.