Intel Pentium II Xeon @ 480.05 MHz - CPU-Z VALIDATOR
Intel SL7Z5 Processor 1-Core Pentium 4 660 3.6Ghz
PDF] Event Detectors and Counters the Intel Pentium 4's Unique Performance-monitoring Features Overcome Many Limitations and Problems Found in Previous Processors. Pentium 4 Xeon Performance Monitoring Supports Simultaneous Multithreaded Execution ...