Compaq 239158-999 - Mini Tower - Power Supply 250 Watt Manual
Comparison of intel pentium iii and pentium 4 processor performance
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White Paper
October 2001
Prepared by:
Workstations Division Engineering
Compaq Computer Corporation
Contents
Introduction ................................. 3
Benefits....................................... 3
Case for Performance.................. 5
SYSmark 2001......................... 5
Processor Test......................... 6
Summary..................................... 8
Detail .......................................... 9
Pentium III ............................... 9
Pentium 4 .............................. 10
Impact of DirectX 8.0.............. 12
15WD-1101A-WWEN
Comparison of Intel Pentium III
and Pentium 4 Processor
Performance
Abstract: This white paper summarizes key technology
advancements in the Intel® Pentium® 4 processor compared with
the previous-generation Intel Pentium III processor. Common
benchmark workloads are discussed to provide an illustration of
which areas of computing will benefit the most from this new
architecture. Results of Compaq benchmark testing, comparing
results for both processors, are included to demonstrate the
performance gains realizable with the new processor.
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Table of Contents
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Summary of Contents for Compaq 239158-999 - Mini Tower - Power Supply 250 Watt
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Page 1: Table Of Contents
3D WinBench 2000 – which areas of computing will benefit the most from this new Processor Test......6 architecture. Results of Compaq benchmark testing, comparing Summary........8 Additional Micro-Architecture results for both processors, are included to demonstrate the Detail .......... - Page 2 PROFITS, BUSINESS INTERRUPTION, OR LOSS OF BUSINESS INFORMATION), EVEN IF COMPAQ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. The limited warranties for Compaq products are exclusively set forth in the documentation accompanying such products. Nothing herein should be construed as constituting a further or additional warranty.
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Page 3: Introduction
Using the Compaq Deskpro EN platform equipped with 1 GHz Pentium III processor as the baseline, benchmark results of the new Compaq Evo D500 platform equipped with the 1.7 GHz Pentium 4 processor are presented as a comparison of the two... - Page 4 Pentium III may still offer an acceptable solution. However, the customer should be aware that Compaq expects that, in the near future, office applications will be handling much more data requiring the architectural advantages the Pentium 4 possesses.
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Page 5: Case For Performance
Comparison of Intel Pentium III and Pentium 4 Processor Performance White Paper On the surface, the architecture of this new class of Pentium 4 processor looks the same as the Pentium III, but after one drills further down, the Pentium 4 is significantly enhanced to give better levels of performance in terms of frequency and instructions execution per clock. -
Page 6: 3D Winbench 2000 - Processor Test
Comparison of Intel Pentium III and Pentium 4 Processor Performance White Paper Figure 2: Comparison of Pentium III with Pentium 4 in SYSmark 2001 Benchmark Tests Figure 2 clearly illustrates the Pentium 4 performance advantages over Pentium III. It is also clear that performance gains in the Office Productivity workload are less dramatic when compared to Internet Content Creation workload. - Page 7 Comparison of Intel Pentium III and Pentium 4 Processor Performance White Paper Figure 3: Comparison of Pentium III and Pentium 4 in 3D Winbench 2000 Processor Test To display 3D objects on a 2D computer screen, it is much easier to represent 3D objects as a collection of polygons (usually triangles) than as curved surfaces.
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Page 8: Summary
The customer should be aware that Compaq expects that, in the near future, office applications will be handling a lot more data, thus resulting in the need for increased... -
Page 9: Additional Micro-Architecture Detail
Comparison of Intel Pentium III and Pentium 4 Processor Performance White Paper Additional Micro-Architecture Detail Figures 4 and 5 provide an overview of the micro-architectures of the Pentium III and Pentium 4 processors respectively. Pentium III Figure 4: Pentium III Micro-Architecture Overview... - Page 10 Comparison of Intel Pentium III and Pentium 4 Processor Performance White Paper Pentium 4 Figure 5: Pentium 4 NetBurst Architecture Overview Again, the NetBurst micro-architecture attacks the frequency and IPC variables of the performance equation ly after) silicon process technology, its redesigned architecture of the complete instruction pipeline, its execution engine, and its extension to the existing instruction set, which is as follows: •...
- Page 11 Comparison of Intel Pentium III and Pentium 4 Processor Performance White Paper • Advanced Dynamic Execution with very wide windows of instructions (126 instructions versus 42 instructions in the Pentium III) from which the execution units can choose to execute, thus avoiding dependency stalls that would prevent execution units from doing useful work.
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Page 12: Impact Of Directx 8.0
Comparison of Intel Pentium III and Pentium 4 Processor Performance White Paper Impact of DirectX 8.0 Optimized usage of SSE/SSE2 extension and code flow optimization to take advantage of the new NetBurst micro-architecture, allow graphic drivers to make use of DirectX 8.0 programmable vertex and pixel shaders to produce significant performance gains as illustrated in Figure 6.