Average Reviews:
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The OCZ ATV 32GB is wonderful value for money, in my opinion. Having 32GB of storage wherever I go is just so useful. And I don't have to worry about a clunky and fragile 2.5" HDD!
But performance is a mixed-bag affair:
You see, this gadget has rather high average read/write speeds, and a typical (for USB flash disks I tested) read latency but it has the highest average write latency I saw. Here are the numbers (using H2BenchW on my nForce4-based motherboard, BTW):
Sustained transfer rate (block size: 128 sectors):
Reading: average 29596.2, min 28437.3, max 31534.2 [KByte/s]
Writing: average 24470.5, min 11758.5, max 26000.8 [KByte/s]
Random access read: average 1.38, min 0.51, max 3.01 [ms]
Random access write: average 362.35, min 2.07, max 486.68 [ms]
See the 362ms write access time? That's the slowest I ever saw on any storage device of any kind except floppies! Compare to SanDisk's Cruzer Titanium 2GB, for example:
Sustained transfer rate (block size: 128 sectors):
Reading: average 18475.3, min 18058.2, max 18754.7 [KByte/s]
Writing: average 15887.9, min 14112.3, max 16189.1 [KByte/s]
Random access read: average 1.11, min 0.78, max 2.47 [ms]
Random access write: average 34.61, min 4.84, max 43.89 [ms]
Or even Kingston's snail-ish DataTraveller Mini 2GB:
Sustained transfer rate (block size: 128 sectors):
Reading: average 11044.1, min 6264.6, max 11195.4 [KByte/s]
Writing: average 5404.5, min 3262.9, max 5694.6 [KByte/s]
Random access read: average 1.96, min -1.04, max 4.54 [ms]
Random access write: average 232.98, min 1.70, max 376.35 [ms]
The practical upshot of all of this is that the OCZ ATV 32GB performs very poorly when copying many small files *to* it.
This is a very easy to overcome limitation, of course, once you know it's there: simply zip the files before copying them over and all will be great.
To demonstrate, here's a test with a 4005 file, 1.64GiB folder:
Simple copy: 3037 seconds
Directly archived to OCZ with no compression: 2566 seconds
Archived to HDD first and then copied to OCZ, also with no compression: 524 seconds
That's a 627ms/file premium on direct-copy!
Click Here to see more reviews about: OCZ OCZUSBATV32G 32 GB ATV USB Flash Drive
Product Description
The shock-proof ATV features mainstream speeds offering consumers an affordable option and was designed to safely accommodate a wealth of important data and media files. Not only are these premium flash drives aggressively fast at transferring files of all types and sizes, but are optimized for Windows Vista Ready Boost, offering true performance advantages to this latest operating system. ATV flash drives feature durable and colorful rubber tread housing, which is a 100% weatherproof storage solution to keep digital files safe in any conditions, even fully submerged in water. The attached cap holder will help prevent misplacement of the protective key cover, while the chain can easily fasten to your key ring for ultimate portability.
Product Details
- Size: 32 GB
- Brand: OCZ
- Model: OCZUSBATV32G
- Number of items: 1
- Dimensions: .50" h x 4.50" w x 7.00" l, .10 pounds
Features
- Manufacturer Warranty - Lifetime Warranty
- Device Type - Flash Drive
- Storage Capacity - 32GB
- True Plug and Play (Compatible with MAC OS X)
- Dual Channel Technology
Click here for more information about OCZ OCZUSBATV32G 32 GB ATV USB Flash Drive
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