Unlike the Standard Edition, the Enterprise Edition supported up to 8 processors and 32GB of RAM (in the 32-bit version) and was the entry point for clustering services. For its time, it scaled remarkably well for mid-sized businesses.
This edition introduced several technologies that became staples of the modern data center: windows server 2003 enterprise edition iso
Windows Server 2003 Enterprise Edition: A Legacy Look at a Networking Icon Unlike the Standard Edition
: Through Physical Address Extension (PAE), the 32-bit version could address up to 64 GB of RAM . The 64-bit x64 variant, especially with Service Pack 2, supported up to 1 TB of RAM . especially with Service Pack 2