Bandwidth refers to the data transmission rate connected by the network, usually measured at the amount (bit) transmitted per second. In the website server, bandwidth refers to the data transmission capacity between the server and the Internet. The difference between 1M bandwidth and 2M bandwidth lies in the amount of data transmitted per second.

　　1M bandwidth:

　　1M bandwidth indicates the amount of 1 trillion Bit (MB) data per second. This means that the transmission rate between the server and the Internet is 1MB/s. For small websites or lower traffic websites, 1M bandwidth may be sufficient. However, for websites that have a large number of visits and a large number of media content (such as pictures, videos), or a large number of concurrent requests, the 1M bandwidth may cause the website to respond to slower or cannot meet user needs.

　　2M bandwidth:

　　2M bandwidth indicates the amount of data of 2 mega (MB) per second. Compared with 1M bandwidth, 2M bandwidth has a higher transmission rate, so it can process more data transmission. For medium -sized websites or websites with high traffic, 2M bandwidth can provide better performance and user experience.

　　Bandwidth is not the only factor that affects the performance of the website. Other factors, such as server performance, processing capacity, network delay, etc., will also affect the response speed and performance of the website. Therefore, when choosing a server bandwidth, you need to consider the needs and expected traffic of the website, and ensure that the server's bandwidth can meet the requirements of the website.