Processors

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Processors

Q. Pleases explain the difference between a Celeron Processor and a Pentium III.

A. Below we have reproduced two charts from Intel (all material copyright Intel Corp) that highlight the major differences between the two classes of processor.

Pentium III Processor

Feature	Benefit
Up to 600-MHz Processor Core Speed	Faster core speeds enhance performance on all applications
133 and 100 MHz System Bus	Increased system bandwidth for improved system performance
512 KB Integrated L2 ECC Cache	Enhances performance by decreasing memory access time. ECC functionality for applications where data intensity and reliability are essential
Internet Streaming SIMD Extensions	70 new floating-point instructions enabling advanced imaging, 3D, streaming audio and video, and speech recognition for an enhanced Internet experience
Intel Processor Serial Number	Provides a hardware "ID tag", providing improved levels of asset management, platform identification and information management.
Dual Independent Bus (DIB) Architecture	Allows processor to simultaneously access L2 cache and system memory or I/O
Dynamic Execution Technology, Including Multiple Branch Prediction, Speculative Execution and Data Flow Analysis	Provides enhanced performance for all 32-bit applications by optimizing instruction sequences
Intel MMX Media – enhancement Technology	Enhances the performance and quality of media-rich applications
Supports Dual Processing	This enables low-cost, two-way symmetric multiprocessing, providing a significant performance boost for multi-tasking operating systems and multi-threaded applications

Celeron Processors
Features	Benefits
Up to 500 MHz Processor Core Speeds	Faster core speeds enhance performance on all applications.
128-KB full speed, on-die L2 cache for Intel® Celeron™ processors 500 MHz, 466 MHz, 433 MHz, 400 MHz, and 366 MHz	Enhances performance by decreasing memory-access time
Dynamic Execution Technology	Provides enhanced performance on all 32-bit applications by optimizing instruction sequences
Intel MMX™ Media Enhancement Technology	Enhances the performance and quality of media-rich applications
32-KB (16-KB/16-KB) non-blocking, L1 cache	Provides fast access to commonly accessed data
0.25 micron process technology	Reduces power consumption for better thermal performance

Currently the P3 is being manufactured in the SECC cartridge format (a rectangular format with an edge that fits into a slot on the motherboard) and current Celerons are coming in a PPGA package (plastic pin grid array) that fits into a socket much like the older 486 processors (it looks like a chip whereas the SECC cartridge does not). To really highlight the differences, notice the different amount of cache between the two processors and the other key point is the difference in bus speed.