Pentium III and Pentium III Xeon Comparison

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Table 1 – Comparison between Intel Pentium III and Pentium III Xeon Processors
Specification 2-Way Intel Pentium III
Processor
2-Way Intel Pentium III Xeon
Processor
Clock Speeds Follows Intel Road Map Follows Intel Road Map
FSB (Front-side-bus) Speed 133MHz 133MHz
L2 Cache 256KB on-die 256KB on-die
Designed for Servers? Yes Yes
Scalability 2-Way Maximum 2-Way Maximum
Other processor-specific features:
•
Thermal Sensor
•
Error Correction Code
•
Functional Redundancy Checking
•
System Management Bus
•
Software-accessible Processor
Serial Number
Yes Yes
Form Factor Slot 1 Slot 2
Performance
Chart 1 shows a 1:1 performance comparison between a server using an Intel Pentium III
processor versus a server that uses an Intel Pentium III Xeon processor. This test was
conducted using a processor-intensive workload, which isolates the performance of the
processors and de-emphasizes other I/O or network effects. As can be plainly noted, both
servers perform virtually identically in this processor test. This re-enforces the key
argument: these two processors are virtually identical.
A Word about Other Xeon Processors
It is important to remember that the two types of processors under discussion in this
product paper are both
two-way (dual processor) capable only with 256KB L2 cache.
This paper does not make any attempt to discuss other cache sizes or
four-way and
above processing. No implication is intended nor should be drawn with respect to other
Xeon processors.