Patriot PC2-5300 2GB DDR2 Memory - Page 6

by Hilbert Hagedoorn on: 05/29/2006 06:00 AM [ ] 0 comment(s)

File Encryption & Decompression

Encrypting is becoming more and more popular task with file sharing. Many companies already have a policy where all emails for instance must be encrypted. This test involves encrypting of different kind of files.

File decompression are very popular tasks in todays PC usage, especially files transferred over a network are almost without exception always compressed. These tests use the open source Zlib data compression library.

The amount of operations processed during the 20 second run time is calculated for both tests and the metrics is Megabytes processed per second.

I really like this memory. The differential between 667 and 800 MHz is nihil though. This app is more CPU bound as you can see when we fire off a 907 MHz FSB at it.

Grammar Check & File Decryption

This test simulates a user checking the grammar in a document. As text editing is among the most common tasks in using PC at home, and checking grammar from text is very popular while editing text, such test should be included in determining the performance of a system in home environment. In the default run, this test will be run simultaneously with the Virus Scanning test multithreaded. This test uses the Link Grammar Parser v4.2

File decryption - Many companies already have a policy where all emails for instance must be encrypted. The files used for decrypting include 2MB executable, 2MB document, 1.1MB picture and a 1.7MB audio file. The files are en/decrypted in 8 byte padded blocks and the encryption key size is 56 bytes.

WMV & DiVX Compression

WMV Video Compression - With digital video cameras increasingly gaining popularity, video conversion and editing is becoming a very popular task in home PC usage. This video compression tests measures two different types of video file conversion. In the WMV Video Compression test, a Windows Media format video file is encoded. This test uses the Windows Media Encoder 9. The video source data file used for the encoding is approx. 1.8 MB sized mpg file with a resolution of 320*240. Video compression is done through Windows Media Encoder to same resolution WMV format with video bitrate of 1000kbps.

The DivX Video compression - This test is similar to the WMV format encoding test, but uses the DivX format. The two different video encoding tests are both included because they are both widely used and they shouldnt be generalized under one test. The tests also use different types of data. This test uses the DivX Video for Windows codec v5.0.5 for encoding the file.

The video source data file used in this test is a DV format file with a resolution of 720*480. The DV file format is commonly used by digital camcorders. The file is converted to DivX format with the same resolution. DivX is a popular format for storing digital video clips, due to the higher compression ratio. The encoding to DivX format is done aside the decoding of DV in separate threads, as the real applications do. The time for the process is measured and metrics is frames processed per second. The DivX Video Compression test reads the input file is from the hard disk and writes the output to the hard disk, so hard disk performance may have some effect to the test result.

Don't get confused, we are showing perfromance in FPS here, yet in this test means the number of converted frames per second. It's quite amazing to see the performance between the 667 and 800 MHz memory configurations. Once the CPU starts kicking in also (907 MHz DDR2) things get really interesting obviously.

Let's have a look at real-world gaming performance.

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