Productivity: tests include text editing, search in Windows Contacts, analysis of the boot process and web-page rendering.Communication: tests include web-page rendering, CNG AES CBC encryption, Windows Mail Search and audio transcoding.Music: converts WAV music files to MP3 and WMA Lossless formats and adds music files in Media Player.

Gaming: measures the performance of the graphics card and estimates the loading speed of compressed game data.

TV and movies: plays and converts high-definition video in four separate tests.

Memories: four tests check the speed of Windows Photo Gallery and Windows Movie Maker when handling photos and video.

The benchmark is divided into several usage scenarios, with the default PCMark Suite simulating everyday PC usage. PCMark Vantage tests system performance by benchmarking the applications that are integrated into Vista and Windows 7. That means you don't have to wait while the operating system monopolises system resources for its caching tasks. SuperFetch also starts much later, so the hard drive is not tied up immediately after the launch of the operating system. Windows 7 clearly makes do with fewer resources, so its cache usage is significantly lower than Vista's. The new implementation of SuperFetch under Windows 7 has a positive impact on performance. For operating system-related functions, it uses 333MB, while Vista without SuperFetch uses 519MB of cache. By that point, Vista's SuperFetch has allocated more than 1.5GB.Įven without SuperFetch turned on, Windows 7 makes fewer demands on cache. In Windows 7, SuperFetch starts after five minutes and after 10 minutes a little more than 600MB has been allocated. As the graph below shows, after three minutes just over 1GB of memory has been allocated. Under Vista, the caching of applications starts immediately at launch. The SuperFetch feature in Windows 7 differs significantly in approach and cache usage from its counterpart in Vista.

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