PCMark05
For these tests, we use RankDisk, an application developed and copyrighted by Intel. In our testing, we found RankDisk to be suitable for a neutral benchmark. RankDisk is used to record a trace of disk activity during usage of typical applications. These traces can then be replayed to measure the performance of disk operations for that usage.
RankDisk records disk access events using the device drivers and bypasses the file system and the operating system’s cache. This makes the measurement independent of the file system overhead or the current state of the operating system. In replaying traces, RankDisk always creates and operates on a new dummy file. This file is created in the same (or closest possible) physical location of the target hard disk. This allows the replaying of traces to be safe (does not destroy any existing files) and comparable across different systems. Due to the natural fragmentation of hard disks over time, they should be defragmented before running these tests.
The traces used for each test were created from real usage. The traces contain different amount of writing and reading on the disk; total ratio in the HDD test suite disk operations is 53% reads and 47% of writes.
The following input traces are used:
Windows XP Startup: This is the Windows XP start trace, which contains disk activities occurring at operating system start-up. The test is 90% reading and 10% writes. This trace contains no user activity.
Application Loading: This is a trace containing disk activities from loading various applications. It includes opening and closing of the following applications:
Microsoft® Word
Adobe® Acrobat® Reader 5
Windows® Media Player
3DMark®2001SE
Leadtek® Winfast® DVD
Mozilla Internet Browser
The application loading trace is 83% reads and 17% writes.
General Hard Disk Drive Usage: This trace contains disk activities from using several common applications.
These are:
Opening a Microsoft® Word document, performing grammar check, saving and closing
Compression and decompression using Winzip
Encrypting and decrypting a file using PowerCrypt
Scanning files for viruses using F-Secure® Antivirus.
Playing an MP3 file with Winamp
Playing a WAV file with Winamp
Playing a DivX video using DivX codec and Windows® Media Player
Playing a WMV video file using Windows® Media Player
Viewing pictures using Windows® Picture Viewer
Browsing the internet using Microsoft® Internet Explorer
Loading, playing and exiting a game using Ubisoft Tom Clancy’s Ghost Recon
The General Usage trace is 60% reads and 40% writes.
Virus Scanning: Virus scanning is a critical task in today’s PC usage. As the major bottleneck of scanning viruses is in hard disk activity, it is reasonable to include virus scanning as a HDD test. The test consists of HDD activity of scanning 600MB of files for viruses. The Virus Scanning test is mostly disk reading (99.5%).
File Write: This trace contains disk activities from writing 680MB files on the hard disk and no read operations are involved in this test.
While the 520 Series is mostly in-line with the other SandForce models in our test, it seems a bit more ‘tuned’ to handle the types of workloads presented by PCMark.
They command a 20% Price
They command a 20% Price premium vs competitor’s products. not a good buy in my opinion. I just upgraded my system with a 64GB OCZ synapse cache drive. And I am happy and set. BF3 level load fast!
Is it worth upgrading from my
Is it worth upgrading from my 160GB X-25M?
hmm, i dunno. IMO, a SSD
hmm, i dunno. IMO, a SSD upgrade from an SSD is kind of a hard sell 😛 If you have the money and don’t know what else to spend it on, sure it’ll be faster but won’t be as large of a jump in performance as the jump from a hard drive to that X-25M was.
There is a fatal flaw in
There is a fatal flaw in these drives.
If the ATA password is lost there is NO way to reset the drive and it is bricked with no hope!
Unlike other FDE drives, you CANNOT secure erase or reset the password or drive to the factory null state. Worse yet, if you do try to secure erase these drives, the ATA password will be lost and again the drive is dead.
Nobody knows why Intel made this fatal mistake, but they did.