As usual, I will first run synthetic benchmarks.
SiSoftware Sandra 2004 measures the overall performance of the system as well as that of each of its subsystems, while PCMark 2004 benchmarks the computer performance in office and multimedia applications and also produces performance scores for the main subsystems (CPU, memory, graphical, and disk subsystem).
The ASUS W5G00F has a CPU clock rate of 2GHz as opposed to the VAIO’s 1.83GHz. The results of the notebooks in the CPU tests are high (when they are connected to an AC source) and proportional to their CPU frequencies. When the notebooks switch to their batteries, their CPU clock rates are lowered to 1GHz to save power. The results of the tests become lower, too. The ASUS wins the memory performance tests because it is equipped with a dual-channel memory subsystem. This also becomes the crucial factor for the graphics subsystem tests.
The Business Winstone 2004 test runs scripts of the following real-life office applications, several scripts at a time to simulate multi-tasking: Internet Explorer, Outlook, Word, Excel, Access, Project, PowerPoint, FrontPage, WinZip, and Norton AntiVirus Professional Edition.
The Multimedia Content Creation Winstone 2004 test determines the performance of a computer in the following multimedia applications: Windows Media Encoder, Adobe Photoshop and Adobe Premiere, NewTek LightWave 3D, Steinberg WaveLab, Micromedia Dreamweaver MX, and Micromedia Director MX.
This test produces expectable results. It depends largely on the CPU performance, so the ASUS W5G00F with its faster CPU clocked at 2.0GHz wins here. When working on their batteries, each of the two notebooks lowers its CPU clock rate to 1.00GHz and they deliver roughly the same performance in the test.