HP Evo D500 Comparison of Intel Pentium III and Pentium 4 Processor Performanc
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- HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 1
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 - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 2
, nor does it ensure compliance with any federal, state or local requirements. ©2001 Compaq Information Technologies Group, L.P. Compaq, the Compaq logo, Evo and Deskpro are trademarks of Compaq Information Technologies Group, L.P. in the U.S. and/or other countries. Intel, Pentium, and Celeron - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 3
of the new Compaq Evo D500 platform equipped with the 1.7 GHz Pentium 4 processor are presented as a comparison of the two architectures. Comparison of Pentium 4 and Pentium III Architecture Benefits As Internet and digital media become more pervasive in modern computing, the Pentium 4 processor - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 4
increasing use of java technology and XML in Office XP, Windows XP and Web services. Nevertheless, in the short term, if the customer's need is primarily for office an acceptable solution. However, the customer should be aware that Compaq expects that, in the near future, office applications will be - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 5
specifically attacks the frequency and IPC variables of the performance equatioÃv‡uÃv‡†Ãhq‰hprqà ' €Ãhq u‚…‡y’Ãhs‡r…Ævyvp‚Ã…‚pr††Ã technology, its redesigned architecture of the complete instruction 1) floating-point-based applications that are memory- and bandwidth- intensive and, 2) - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 6
benefits greatly from the new architecture of the Pentium 4. 3D WinBench 2000 - Processor Test 3D WinBench 2000 measures system-level 3D performance, including CPU and graphics subsystem. To understand the processor 3D performance, this benchmark suite includes the Processor Test which measures the - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 7
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 objects require large numbers of complex floating-point vector calculations. The CPU index performance gain in the 3D Winbench 2000 - Processor Test, - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 8
that are very predictable and thus have a higher IPC (Instructions executed Per Clock) potential. Integer-based and basic office productivity be obtained by greater processor speed. The customer should be aware that Compaq expects that, in the near future, office applications will be handling - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 9
Comparison of Intel Pentium III and Pentium 4 Processor Performance White Paper 9 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 - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 10
III - smaller workload per stage but at significantly faster execution time • Execution Trace Cache to remove the long latency associated with the instruction decoder from the main execution loop in the Pentium III • Rapid Execution Engine where multiple Arithmetic Logic Units (ALUs) are executed - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 11
) versus 1.06GB/s (32 bytes/4clocks @ 133 MHz)). - Higher concurrent requests - Faster interrupt servicing (bus message versus I/O cycles) • Streaming Single Instruction Multiple Data Extension 2 (SSE2) with 144 new instructions that deliver 128-bit SIMD integer arithmetic operation and 128-bit SIMD - HP Evo D500 | Comparison of Intel Pentium III and Pentium 4 Processor Performanc - Page 12
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. Figure 6: DirectX8
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White Paper
October 2001
Prepared by:
Workstations Division Engineering
Compaq Computer Corporation
Contents
Introduction
.................................
3
Comparison of Pentium 4 and
Pentium III Architecture
Benefits
.......................................
3
Case for Performance
..................
5
SYSmark 2001
.........................
5
3D WinBench 2000 –
Processor Test
.........................
6
Summary
.....................................
8
Additional Micro-Architecture
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.