In this particular test, we're transferring 11 GiB worth of H.264-encoded video clips (which, of course, you can't really smash down any more), along with a slew of smaller files that are compressible.
Because this benchmark is dominated by incompressible data, Intel's Marvell-powered SSD 510, totally optimized for sequential transfers, does realy well. It only trails the 256 GB Samsung 830 by a few seconds. The SSD 520 isn't too far behind though, and it manages to match OCZ's Vertex 3.
Just look at the difference between the slowest solid-state drive, Intel's SSD 320, and Western Digital's Scorpio Blue notebook disk, though. This isn't a battle between high-end SSDs at all. It's a matter of ditching mechanical storage in favor of flash-based devices.
Backing up a game using Steam involves a mix of incompressible and compressible sequential writes, along with a sizable number of random write operations. We also observe high CPU utilization, as as individual files are packed into archives. As a result, you don't end up seeing much difference between SATA 3Gb/s- and 6Gb/s-connected drives, or even between the SSDs and hard disk, since storage surprisingly isn't a big bottleneck.
In order to make this test more demanding, we'd need to add concurrent operations. For example, we can move other files to and from the SSD while the backup operation executes with minimal impact. On the hard drive, the same multi-tasked workload slows both actions to a crawl.
- Intel’s SSD 520: Enthusiast Storage By SandForce?
- Test Setup And Benchmarks
- Breaking Out New Benchmarks
- 4 KB Random Performance: Raw, Windows, And Mac
- 128 KB Sequential Performance: Raw, Windows, And Mac
- Incompressible Performance: SandForce's Weakness
- Tom's Hardware Storage Bench And PCMark 7
- Power Consumption: Idle And 4 KB Random (Windows 7/Mac OS X)
- Power Consumption: 128 KB Sequential (Windows 7/Mac OS X)
- Power Consumption: Incompressible Sequential (Windows 7/Mac OS X)
- Endurance Testing: Write Amplification And Estimated Lifespan
- Steady State Performance (Worst Case) And TRIM
- Real World Performance: File Copy And Backup
- Real-World Performance: Windows And Mac Boot Times
- Not Just Another SandForce SSD