Windows 2000 Advanced Server includes all of the same features as Windows 2000 Server, plus additional features that provide a highly scalable, interoperable, available, and manageable operating system.
In addition to providing the features in Windows 2000 Server, Windows 2000 Advanced Server includes:

Enterprise Memory Architecture
Allows applications that perform transaction processing or decision support on large data sets to keep more data in memory, for greatly improved performance. Windows 2000 Advanced Server supports physical memories of up to 32 GB on Alpha-based computers, and up to 8 GB on Intel-based computers.

SMP Scalability
Supports up to eight processors.

Windows Clustering
Allows you to connect multiple servers to form a cluster of servers that work together as a single system. Windows Clustering provides the following benefits:
- High Availability. Provides high availability for mission-critical applications, including the ability to automatically detect the failure of an application and quickly restart it on a different server. In addition, when one server in the cluster fails, another server in the cluster can be used to restore service to users.
- Network Load Balancing. Provides high availability and scalability for network-based services, such as TCP/IP and Web services.