TFTP in its well-known port number is 69. TFTP server process to select a new port and TFTP client process communication, transmission speed.
sftp is part of SSH as a secure file transfer subsystem, SFTP does not have a separate daemon, it must use the sshd daemon (default port number is 22) to complete the corresponding connecting operation, SFTP is also encrypted transfer certification information and data transmission, so it is very safe to use SFTP. However, the transmission efficiency than regular FTP is much lower, if your network security requirements are higher, you can use SFTP instead of FTP.
At the same time the tool will need to download SFTP SFTP download tool and configure the SFTP parameters in the global configuration.