4-6 Mbps-considered minimum speed generally required for today's video-rich applications. 6-10 Mbps-this connection is a good middle ground for most subscribers at home. 10-15 Mbps-at this speed, subscribers will detect sharp increases in download performances.15-50 Mbps-this connection speed will give you a good experience without buffering.hile most internet subscribers don't need 1 gigabit-per-second (Gbps), you should be getting at least 8 megabits per second (Mbps) to consider yourself a modern user. Anything less than 8 mbps is considered slow.