Form Embarcadero marketing matriel, has there been any tests lately? Early on FB was faster I think. (https://community.idera.com/developer-tools/b/blog/posts/interbase-isv-database-comparison)
InterBase v FirebirdFirebird Summary: InterBase is faster, vastly more scalable, is packed with superior disaster recovery and data protection compliance features that are key to maintaining both you and your customer's reputations. Additionally, Change Views adds a zero cost and highly scalable replication engine API that reduces significantly both data movement and replication licensing costs for the lowest total cost of ownership. -Tee-
