We had some benchmarks with the latest improvements to our backup where SJA was typically 5-10% faster than mysqldump as far as I remember. Provided of course that SJA is running on the MySQL machine.
Maybe our test team can find more details (data types, database size etc).
We tried with remote database within LAN for 20 tables ( having 500K rows) and few funcions, views, store procedures and triggers ( SQL file is 350 M:cool:.
Both SQLyog and MySQLdump took same time to perform the export operation( 1 minute and 35 seconds).