Condensed overview from Intel of the P3 with 512kb cache - clock speeds from .450 - 1.4 GHz.
Of particular interest is the table, showing clock speeds, cache & operational frontside buss speeds etc. - I added this in for handy reference without having to trawl all over the www.
Product Description
The Intel Pentium III processor with 512 KB L2 cache integrates the P6 Dynamic Execution microarchitecture, Dual Independent Bus (DIB) Architecture, a multi-transaction system bus and Intel MMX media enhancement technology. In addition, the Intel Pentium III processor with 512 KB L2 cache offers Internet Streaming SIMD Extensions, 70 instructions enabling advanced imaging, 3D streaming audio and video and speech recognition for an enhanced Internet experience. The processor also includes an on-die 512 KB Level 2 Advanced Transfer Cache with Advanced System Buffering to meet the higher data bandwidth requirements of today's server environments. The Pentium III processor is designed to meet the needs of entry-level servers.
Product Performance
The Pentium III processor family delivers great performance. For the spectrum of Pentium III processor performance, please visit the Intel Processor Performance Web Site at http://www.intel.com/procs/perf/.
Intels Most Advanced, Most Powerful Processor for Entry Level Servers
The Intel Pentium III processor with 512 KB L2 cache for entry level servers now includes frequencies of up to 1.40 GHz. All are binary compatible with previous generation Intel Architecture processors. Pentium III processors are now available in the Flip-Chip Pin Grid Array 2 (FC-PGA2) package. The FC-PGA2 package is designed for the new breed of sleed, powerful, small form factor servers. Figure 1 summarizes the features of each currently available version.
Core Speeds / Versions |
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FEATURES |
1.40, 1.26, 1.13 GHz
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1 GHz, 1.13B GHz, 933, 866, 800EB, 733, 667, 600EB, 533EB MHz
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850, 800, 750, 700, 650, 600E, 550E MHz
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1, 1.10 GHz, 850, 800, 750, 700, 650, 600, 550E, 500E MHz
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1 GHz, 933, 866, 800, 733,667, 600EB, 533EB MHz
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600B,
533B MHz
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450, 500, 550, 600 MHz
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S.E.C.C. 2 Package |
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X
|
X
|
|
|
X
|
X
|
FC-PGA 370 pin Package |
|
|
|
X
|
X
|
|
|
FC-PGA2 370 pin Package |
X
|
|
|
|
|
|
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0.13 Micron Process Technology |
X
|
|
|
|
|
|
|
0.18 Micron Process Technology |
|
X
|
X
|
X
|
X
|
|
|
0.25 Micron Process Technology |
|
|
|
|
|
X
|
X
|
133 MHz System Bus |
X
|
X
|
|
|
X
|
X
|
|
100 MHz System Bus |
|
|
X
|
X
|
|
|
X
|
256 KB Level 2 Advanced Transfer Cache (full-speed) |
|
X
|
X
|
X
|
X
|
|
|
512 KB Level 2 Advanced Transfer Cache (full-speed) |
X
|
|
|
|
|
|
|
512 KB On-Package Half-Speed Level 2 Cache |
|
|
|
|
|
X
|
X
|
Advanced System Buffering |
X
|
X
|
X
|
X
|
X
|
|
|
Dual Processor Support |
X
|
X*
|
X
|
X
|
X
|
X
|
X
|
64 GB Memory Addressbility |
X
|
X
|
X
|
X
|
X
|
X
|
X
|
4 GB Memory Cacheability |
X
|
X
|
X
|
X
|
X
|
X
|
X
|
Streaming SIMD Extensions |
X
|
X
|
X
|
X
|
X
|
X
|
X
|
Intel Processor Serial Number |
|
X
|
X
|
X
|
X
|
X
|
X
|
Dual Independent Bus Architecture |
X
|
X
|
X
|
X
|
X
|
X
|
X
|
Dynamic Execution |
X
|
X
|
X
|
X
|
X
|
X
|
X
|
Intel MMX Media Enhancement Technology |
X
|
X
|
X
|
X
|
X
|
X
|
X
|
Note: E, B and EB nomenclature is used to differentiate processors within a processor speed designation when there is an overlap between processor frequencies and functionality. - E designates Advanced Transfer Cache and Advanced System Buffering support. - B designates 133 MHz System Bus support. - EB designates Advanced Transfer Cache, Advanced System Buffering and 133 MHz System Bus support. Note: All processors greater than 600 MHz include the Advanced Transfer Cache and the Advanced System Buffering functionality. * Note: Pentium III processor at 1.13B GHz does not support Dual Processor. ** Note: Please refer to the Pentium III Processor Quick Reference Guide for dual processor capability listed by processor s-spec. |
Processor Package Options
Pentium III processors are now available in three different package options: Single Edge Contact Cartridge 2 (S.E.C.C.2), Flip-Chip Pin Grid Array (FC-PGA) and Flip-Chip Pin Grid Array 2 (FC-PGA2). The FC-PGA and FC-PGA2 packages are designed for the new breed of sleek, powerful, small form factor PCs. See Figure 1 for versions available in each package type.
P6 Dynamic Execution Microarchitecture
Dual Independent Bus (DIB)
The Pentium III processor supports the high-performance Dual Independent Bus (DIB) architecture. The DIB architecture places the level 2 cache on a dedicated, high speed cache bus allowing for the system bus to be freed up from cache traffic. This provides significantly higher overall system bandwidth and allows for a dramatic improvement in system performance and scaleability.
Non-Blocking Level 1 Cache
The Pentium III processor includes two separate 16 KB level 1 (L1) caches, one for instruction and one for data. The L1 cache provides fast access to the recently used data, increasing the overall performance of the system.
512 KB Level 2 Advanced Transfer Cache
(Available on certain versions as specified in Figure 1)
The Advanced Transfer Cache (ATC) consists of microarchitectural improvements to provide a higher data bandwidth interface between the level 2 cache and the processor core that is completely scaleable with the processor core frequency. Features of the ATC include:
Advanced System Buffering
(Available on certain versions as specified in Figure 1)
The Advanced System Buffering consists of optimizations in the system bus buffer sizes and bus queue entries that result in an increase in the utilization of the available bandwidth on the 133 MHz system bus.
Internet Streaming SIMD Extensions:
The Internet Streaming SIMD Extensions consist of 70 instructions and includes single instruction, multiple data for floating-point, additional SIMD-integer and cacheability control instructions. Some of the benefits to desktop and Internet applications of Internet Streaming SIMD Extensions include:
Other significant features of the Pentium III Processor
Features Used for Testing and Performance Monitoring
Sources for performance data: Pentium III Processor Performance Brief, System configuration: Intel SE440BX2 main board; seagate ST39102LW SCSI disk; 128MB SDRAM; Diamond Viper* V550 (w/ nVidia Riva TNT) AGP w/16MB; MS DirectX 6.1a; Windows 98 Second Edition;Jmark* 2.0 on Windows* NT 4.0.
Pentium III Processor Quick Reference Guide
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