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[] Mushkin Ventura Ultra USB 3.0 120GB Flash Drive Capsule Review - - different look at memory


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Old 11-11-2014, 10:46 PM   #1
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[] Mushkin Ventura Ultra USB 3.0 120GB Flash Drive Capsule Review

The rise of USB 3.0 as a high speed interface for PCs and the increasing affordability of flash memory has led to some very interesting products. USB flash drives are a dime a dozen, but there is scope for manufacturers to differentiate themselves. We have already looked at the Corsair Flash Voyager GTX, which brought in a Phison controller into the flash driver market. Despite the presence of a USB 3.0 - SATA bridge chip, the unit supported all the important SSD functionalities such as TRIM and overprovisioning. Prior to the Corsair's Voyager GTX introduction, Mushkin actually demonstrated and brought a SSD controller-based USB 3.0 flash drive to the market in the Ventura Ultra series.

Gallery: Mushkin Ventura Ultra USB 3.0 120GB and Atom USB 3.0 64GB Flash Drives

The Mushkin Ventura Ultra series is based on the Sandforce SF-2281 controller. SSDs based on that controller have been in the market for quite some time. The firmware is quite mature now. The bridge chip used in the drives is the ASMedia 1053E. Mushkin also tagged along a 64 GB Atom USB 3.0 drive (that we briefly saw at CES earlier this year) with the Ventura Ultra review sample. The rest of the review will present the DAS (direct-attached storage) benchmark numbers from our evaluation of the two devices, along with a few observations.

Testbed Setup and Testing Methodology

Evaluation of DAS units on Windows is done with the testbed outlined in the table below. For devices with USB 3.0 connections (such as the Ventura Ultra and Atom flash drives being considered today), we utilize the USB 3.0 port directly hanging off the PCH.

AnandTech DAS Testbed Configuration Motherboard Asus Z97-PRO Wi-Fi ac ATX CPU Intel Core i7-4790 Memory Corsair Vengeance Pro CMY32GX3M4A2133C11
32 GB (4x 8GB)
DDR3-2133 @ 11-11-11-27 OS Drive Seagate 600 Pro 400 GB Optical Drive Asus BW-16D1HT 16x Blu-ray Write (w/ M-Disc Support) Add-on Card Asus Thunderbolt EX II Chassis Corsair Air 540 PSU Corsair AX760i 760 W OS Windows 8.1 Pro Thanks to Asus and Corsair for the build components The full details of the reasoning behind choosing the above build components can be found here. The list of DAS units used for comparison purposes is provided below:

  • Mushkin Ventura Ultra 120GB USB 3.0
  • Mushkin Atom 64GB USB 3.0
  • Corsair Voyager GTX 256GB USB 3.0
  • LaCie Rugged Thunderbolt 500GB (SSD version, over USB 3.0)
Synthetic Benchmarks - ATTO and CrystalDiskMark

Mushkin claims read and write speeds of 445 MBps and 440 MBps respectively for the 120GB Ventura Ultra. These are backed up by the ATTO benchmarks provided below. The Atom version claims read and write speeds of 120 and 20 MBps. We don't see anywhere close to those numbers in ATTO, though some of our other benchmarks (detailed further down) do come a bit close. Unfortunately, the numbers provided by ATTO are not directly applicable to most real-life scenarios. It must be noted that the SF-2281 drives tend to perform well with compressible data (as the controller does on-the-fly compression and de-duplication to reduce NAND wear). The data used by ATTO for testing can't be configured and might turn out to be compressible, tending to favor the SandForce SF-2281 controller more.

Mushkin Ventura Ultra 120GBCorsair Voyager GTX 256GBLaCie Rugged Thunderbolt 500GBMushkin Atom 64GB

CrystalDiskMark, despite being a canned benchmark, provides a better estimate of the performance range with a selected set of numbers. As evident from the screenshot below, the performance can dip to as low as 14 MBps for the Ventura Ultra for 4K random accesses. The less said about the Atom drive here, the better it is. In any case, the Atom is not being marketed for its transfer rate capabilities.

Mushkin Ventura Ultra 120GBCorsair Voyager GTX 256GBLaCie Rugged Thunderbolt 500GBMushkin Atom 64GB

robocopy and PCMark 8 Storage Bench

Our testing methodology for DAS units also takes into consideration the usual use-case for such devices. The most common usage scenario is transfer of large amounts of photos and videos to and from the unit. The minor usage scenario is importing files directly off the DAS into a multimedia editing program such as Adobe Photoshop.

In order to tackle the first use-case, we created three test folders with the following characteristics:

  • Photos: 15.6 GB collection of 4320 photos (RAW as well as JPEGs) in 61 sub-folders
  • Videos: 16.1 GB collection of 244 videos (MP4 as well as MOVs) in 6 sub-folders
  • BR: 10.7 GB Blu-ray folder structure of the IDT Benchmark Blu-ray (the same that we use in our robocopy tests for NAS systems)

The 500 GB LaCie Rugged Thunderbolt wins all benchmark hands down. However, as we shall see further down, it is also the costliest of the lot. The form factor also doesn't match up to those of a typical flash drive. Between the Ventura Ultra and the Voyager GTX, there isn't much separation in the write benchmarks. However, the reads present a different story - the Ventura Ultra lags by quite a bit. We also see the 64GB Atom provide 100 MBps+ read speeds for some workloads.

For the second use-case, we take advantage of PC Mark 8's storage bench. The storage workload involves games as well as multimedia editing applications. The command line version allows us to cherry-pick storage traces to run on a target drive. We chose the following traces.

  • Adobe Photoshop (Light)
  • Adobe Photoshop (Heavy)
  • Adobe After Effects
  • Adobe Illustrator
Usually, PC Mark 8 reports time to complete the trace, but the detailed log report has the read and write bandwidth figures which we present in our performance graphs. Note that the bandwidth number reported in the results don't involve idle time compression. Results might appear low, but that is part of the workload characteristic. Note that the same testbed is being used for all DAS units. Therefore, comparing the numbers for each trace should be possible across different DAS units.

In these benchmarks, the Ventura Ultra and Voyager GTX are more evenly matched, trading honors depending on the workload. It must be remembered that the toss-up between the Ventura Ultra and the Voyager GTX is not exactly an apples-to-apples comparison because of the difference in the capacities.

Concluding Remarks

Coming to the business end of the review, the Ventura Ultra keeps up Mushkin's claims of being one of the fastest flash drives in the market. The icing on the cake is the presence of a real SSD controller in the form of the SandForce SF2281 inside.

The performance of the drive leaves us with no doubt that it would be a great portable OS drive, even though Mushkin doesn't advertise it for that purpose. The Atom series, on the other hand, is nothing great when it comes to performance. However, the miniature size is the main selling point here.

Minor points of concern include Mushkin's refusal to divulge the flash memory configuration being used (as these could potentially change in future production runs) and the inability to recognize and take actions on the drive based on S.M.A.R.T features such as TRIM. That said, it is not really clear whether TRIM on SF2281 drives is really worth the trouble. In any case, there is inherent over-provisioning in the drive and the typical flash drive use-case rarely fills up the drive enough to cause extensive performance degradation.

The pricing aspect is the final item on the table. The LaCie Rugged Thunderbolt is obviously costly because of the availability of dual interfaces (both USB 3.0 and Thunderbolt). The Atom comes in as the cheapest of the lot (after all, it is a typical flash drive). The Ventura Ultra, on a per-GB basis, is definitely more attractive than the Corsair Voyager GTX. However, long-term performance consistency for heavy use-cases (not the typical flash drive usage scenario) may be in favor of the Corsair unit (thanks to TRIM support). Over-provisioning can be configured for the Voyager GTX also.

In terms of absolute pricing, the Mushkin Ventura Ultra is available for $70. The 64GB Atom drive retails for $29. A typical SF-2281-based 120GB SSD in a 2.5" bus-powered USB 3.0 enclosure retails for around $90. The form factor of the Ventura Ultra, fortunately, doesn't carry a premium. This makes it easy to recommend it to users looking for a flash drive that can take full advantage of USB 3.0 speeds.

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