Ultimately, which one you choose depends on your applications, goals, budget, uptime requirements and the size of your organization. In short, dedicated internet provides guaranteed performance and reliability with a higher cost, while broadband offers lower cost with potential areas of congestion and performance issues.
A dedicated internet connection dedicates a specific amount of bandwidth that is not shared with anyone else other than the users of that physical circuit. This ensures your internet connection performs at a consistent service level regardless of the time of day or number of users online in the area. In addition to dedicated bandwidth, performance metrics including network latency, packet loss, uptime, jitter and repair timeframes are guaranteed with service level agreements.
A broadband internet connection is a shared network, with many different users in an area sharing a common larger connection. The amount of bandwidth offered is only up to the maximum bandwidth or package speed available, with no guarantees on what speed you actually get or the quality of the connection. Speed is determined by network traffic and congestion, which can vary greatly depending on the location or time of day.