Condensed intel P3 info over-view for the PIII with 256kb of cache - speeds from .450 - 1.33 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 integrates the P6 Dynamic Execution microarchitecture, Dual Independent Bus (DIB) Architecture, a multi-transaction system bus, Intel MMX media enhancement technology and the Intel Processor Serial Number. In addition, the Intel Pentium III processor offers Internet Streaming SIMD Extensions, 70 instructions enabling advanced imaging, 3D streaming audio and video, and speech recognition for an enhanced Internet experience. Versions also include an Advanced Transfer Cache and Advanced System Buffering to meet the higher data bandwidth requirements of today's environments. With great performance for the Internet, the connected home, and multitasking environments, Pentium III processors are targeted at the range of mainstream consumer and business users. The Pentium III processor also meets the needs of entry-level workstations and 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/.
Intel's Pentium III Processor for Desktop PCs and Entry Level Workstations and Servers
The Intel Pentium III processor family now includes versions up to 1.33 GHz for desktop PCs, as well as entry-level workstations and servers. All are binary compatible with previous generation Intel Architecture processors. Figure 1 summarizes the features of each currently available version.
Core Speeds / Versions |
||||||||
FEATURES |
1.33, 1.20, 1.13A, 1A GHz
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1B 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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1.10 GHz, 1, 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 |
|
X
|
X
|
|
|
X
|
X
|
|
FC-PGA 370 pin Package |
|
|
|
X
|
X
|
|
|
|
FC-PGA2 370 pin Package |
X
|
|
|
|
|
|
|
|
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
|
|
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100 MHz System Bus |
|
|
X
|
X
|
|
|
X
|
|
256 KB Level 2 Advanced Transfer Cache (full-speed) |
X
|
X
|
X
|
X
|
X
|
|
|
|
512 KB On-Package Half-Speed Level 2 Cache |
|
|
|
|
|
|
X
|
X
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Advanced System Buffering |
X
|
X
|
X
|
X
|
X
|
|
|
|
Dual Processor Support |
|
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: A,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. - A designates 0.13 micron manufacturing process - 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 1.33, 1.20 and 1.13 GHz does not support Dual Processor. 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.
256 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:
Non-Blocking Level 2 Cache
(Available on certain versions as specified in Figure 1)
Certain versions of the Pentium III processor include a Discrete, off-die level 2 (L2) cache. This L2 cache consists of a 256 KB unified, non-blocking cache that improves performance over cache-on-motherboard solutions by reducing the average memory access time and by providing fast access to recently used instructions and data. Performance is also enhanced over cache-on-motherboard implementations through a dedicated 64-bit cache bus.
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 100 and 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
Internet applications are evolving at a tremendous rate and include browser, 3D, and multimedia technologies. In attempting to evaluate processor Internet performance, PC users should consult the productivity, 3D, and multimedia benchmarks. Additionally, Java Internet technology benchmarks can be used to measure Java aspects of the Internet experience.
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