OCZ RevoDrive 120GB PCI Express SSD

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by Robert Tanner on August 23, 2010 in Storage

Looking to upgrade your PC with a fast SSD? How fast do you want it? If you answered “ultra fast”, then OCZ’s RevoDrive is worth a look. With read speeds of 500MB/s and beyond, a PCI Express interface, and a modest price premium, this SSD is hard to ignore. We’re on the bleeding-edge here, though, so this drive isn’t without a few caveats.

Page 7 – Real-World: File Transfers, Adobe Lightroom

File Transfers

With this we reach the first of our real-world tests where there are no unusual testing or scoring algorithms to leave us scratching our heads! First we start with a simple file transfer from one part of the same drive to another. Please note that straight file transfers to a different destination would post even higher results.

For this test we took a 7.16GB Dual-layer DVD image and timed how long was required to transfer it to a different 10GB partition created on the same drive. Keep in mind with a hard disk, this requires the actuator arm to seek back and forth between the source and destination sectors of the disk platter, while any SSD can instantly read and write to multiple flash chips at once. Still, this is not a test of the raw write speeds of a SSD as the SSD controller cannot read & write to the same parts of the NAND flash simultaneously.

Although the results aren’t the landslide victory we might’ve expected, the OCZ RevoDrive manages to post a new quickest time of 79 seconds so there isn’t any reason to complain. Especially if we were upgrading from an older model mechanical drive, which posted an embarrassing time of over six minutes by comparison.

Adobe Lightroom 2.5

For this test we utilize 500 large RAW files, and import them into Lightroom. We time how long it takes the program to import the files, cache them, and build the image library.

Somewhat interesting is that the results are split into two main groups with the Summit only able to tie the hard drive, while the other SSDs clump together around the 3 minute mark. It appears the Lightroom test is not demanding enough, and another system component (likely the CPU) has become the bottleneck here rather than the storage. Remember, Lightroom only utilizes two cores when loading and creating its image library, so it is not fully utilizing our slower quad-core CPU.

This should go to show that not all workloads are bottlenecked by storage, and that to get the most out of a fast SSD it will require an equally matched processor and system as to avoid any system (or even software) bottlenecks.

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