vCenter 4 Server minimum requirements are;
A.
2GHz CPU, 3GB RAM, 2GB HDD space
B.
2GHz CPU, 2GB RAM, 3GB HDD space
C.
3GHz CPU, 2GB RAM, 3GB HDD space
D.
2GHz CPU, 2GB RAM, 2GB HDD space
Explanation:
Getting Started with ESX, ESX 4.0, vCenter Server 4.0, page 16
Minimum Requirements for vCenter Server
* CPU – 2 CPUs
* Processor – 2.0GHz or faster Intel or AMD processor. Processor requirements might be
higher if the database runs on the same machine.
* Memory – 3GB RAM. Memory requirements might be higher if the database runs on
the same machine.
* Disk storage – 2GB. Disk requirements might be higher if the database runs on the same
machine.