SiS 645DX - Is This The Best Chipset For The P4?

Benchmarks Under Windows 2000

We wanted to avoid the automatic resource management feature integrated in Windows XP, so, as in the past, we opted to use Windows 2000 to test this group of chipsets. The only reason for choosing Windows 2000 over Windows XP is that the newer version of Windows optimizes how background applications run. This new feature would have prevented us from obtaining accurate benchmarking results.

We used a total of 16 different benchmark tests in order to obtain the most complete, well-balanced view of how the SiS 645DX performs. Benchmark results from a total of seven different platforms for Intel Pentium 4 give you a clear overview. The main question here is this: can the SiS 645DX with DDR333 reach the level of Intel 850 with Rambus?

We ran four different Quake 3 tests to determine OpenGL performance. The different MPEG-encoding benchmarks provide a comprehensive testing environment - the Lame MP3 Encoder was used to encode a 178 MB WAV file into MPEG-1 Layer 3 format. Still an established standard, our MPEG-4 test converts a file from a commercial DVD-ROM into MPEG-4 format using Xmpeg 4.2a and the Divx 4.12 codec. We also created an MPEG-2 film using the video-editing software 'Pinnacle Studio 7'. A regular in our list of benchmarks is determining rendering performance using Newtek's Lightwave (version 7b). We also ran WinACE 2.04 to test file archiving, a standard and practical application in the computing world. In order to determine office performance, we used the new Sysmark 2002 benchmark. SPECviewperf provides a comprehensive suite of 3D benchmarks.

Clock Speeds Of Individual Test Platforms