The following tests are taken from a detailed white paper titled

Optimizing Testing Performance in the Data Validation Option

that is available from your Informatica account team. It covers performance issues and performance optimization techniques, and provides detailed execution benchmarks to help you understand the load that Data Validation Option places on the PowerCenter environment.

The following table lists the server configurations that all tests were performed on:

Component	Configuration
Operating system	Linux version 2.6.18-308.el5 (Red Hat 4.1.2-50)
CPU	AMD Opteron 6220 Processor
Speed	3000 MHz
Cores	4
Memory	128GB

Also,

All tests used Oracle data for both tables, table A and table B, in the table pair.
All tests used default configurations and were performed entirely in PowerCenter. That is, no database optimization, caching, sampling, or other performance enhancements were made.

The intention is to provide sample baseline performance numbers on a small server. Larger or more powerful servers and enabling Data Validation Option optimizations would likely result in significantly improved performance.