ACI Worldwide and Cognizant published results from a performance test of BASE24-eps, ACI's card acquiring and issuing switch, running on AWS managed services (Amazon EC2, Amazon RDS for PostgreSQL, OpenTelemetry and Amazon CloudWatch). In a non production environment under simulated point of sale load, the switch sustained more than double its target transaction load for 30 minutes and processed more than 4.6 million transactions with zero failures. The release does not give the target figure, throughput or latency, and says production use still needs failover and disaster recovery testing, security hardening and payment network certification.
Our readIssuers and acquirers weighing a move of an existing BASE24-eps estate to AWS get a stated test design and a failure count to plan against, without a rebuild on a new platform. It is a vendor run test with no bank named and no throughput figure, so treat it as a starting benchmark rather than production evidence.