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Written by Olin Coles   
Thursday, 26 March 2009
Table of Contents: Page Index
ACARD ANS-9010 DDR2 SATA RAM-Drive
Features and Specifications
First Look: ACARD ANS-9010
ACARD ANS-9010 Details
SSD Testing Methodology
Random Access Time Benchmark
Basic IOPS Performance
Linear Bandwidth Speed
Buffered Transaction Speed
Windows XP Startup Times
Solid State Drive Final Thoughts
ACARD ANS-9010 Conclusion

System Speed Test

I doubt that when DOS was put to rest, Vladimir Afanasiev ever thought he would see his System Speed Test software used again in professional reviews. This program offers comprehensive system information, but it also has a powerful benchmarking tool for memory, processor, and disks. In terms of disk performance, it measures interface and physical transfer rates, seek and access times at the hardware level, and it does so without delay or interference from Operating System software or running processes. This is why Benchmark Reviews will continue to use this test: it polls its results directly from the hardware without the need for Windows!

To detect the Random Access Time, each device runs the full test routine a total of five times. The highest and lowest scores were ignored, and the remainder was averaged. This would be prove pointless however, because the access time benchmark for every single SSD recorded identical test results between runs.

System_Speed_Test_Access_Time.png

Using the System Speed Test software, the top Random Access Time benchmarks place the Mtron Pro 7500 SSD at the very top of our results, tied with the DDR2 ACARD ANS-9010 RAM-Disk. With a lightning-fast 0.08 ms access time, every other SSD is forced to live in the shadows these two products have just created. The other sub-0.1ms top performers include: MemoRight GT, Mtron Pro 7000, Mtron MOBI 3500, Intel 80GB X25-M, OCZ Vertex and Mtron MOBI 3000.

The mid-level Random Access Times fall between 0.14ms and 0.23ms, and include: OCZ SATA-II OCZSSD2-1S64G, Samsung MCCOE64G5MPP, Silicon Power SP032GBSSD750S25, OCZ Apex OCZSSD2-1APX120G, G.Skill FM-25S2S-64GB, Patriot Warp PE128GS25SSDR, G.Skill Titan, and the original OCZ OCZSSD64GB.

At the slower end of our SSD Response Time chart is the original SATA Silicon Power SP064GBSSD25SV10, OCZ Core Series, Crucial's CT32GBFAB0, and the Super Talent MasterDrive MX finishing out the list. In reality you couldn't begin to perceive these subtle differences, and MLC or SLC construction has a lot to do with Random Access Time. It is understandable then, that the newer SSD products do not maintain the lightning fast response time that much more expensive SLC products do. Still, the slowest SSD product (0.51ms) is 14x more responsive than the fastest desktop hard drive.

It's also worth keeping in mind that Hard Disk Drive alternatives are much slower to react. Even the very best of the desktop hard drive products, Western Digital's VelociRaptor 150GB WD1500HLFS, could produce 7.15ms at its best. The Western Digital Raptor took 8.53ms to respond, followed by 12.99ms for the Seagate 7200.11, and 15.39ms for the 7200 RPM Hitachi Travelstar 7K100 notebook drive. The worst performer was the standard 5400 RPM notebook drive (Hitachi Travelstar 5K160 HTS541640J9SA00), which recorded a painfully slow 17.41ms Random Access Time.

Drive Hardware



 

Comments 

 
# RE: ACARD ANS-9010 DDR2 SATA RAM-DriveJeddo 2010-03-12 16:11
Why bother with a hardware device that uses RAM modules at such low speeds? I mean, 500 MB/s may be fast for anything plugged into a SATA socket, but with modern consumer motherboards accomodating 16 GB RAM, take half of that for a RAMdrive and you'll be far better off in terms of raw performance. I measured approx. 2 GB/s on a 1 GB RAMdrive; system: Athlon 64 x2 6000+, 2 GB DDR2, XP SP3. And if 4 RAM sockets are not enough, I'm sure Tyan can meet your needs.
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# RE: RE: ACARD ANS-9010 DDR2 SATA RAM-DriveDennis 2010-06-12 19:18
There is a definite niche market for this product. If you have a 32-bit OS like WinXP (and are forced to use this), and run a memory hungry app like PhotoShop, you will need something to help you through the 4GB memory barrier. This handy drive will take care of all you paging file, virtual memory, and temporary drive storage needs. It will provide a strong boost in performance. I'm planning on getting one shortly for use in a corporate environment currently locked to Windows XP 32-bit.
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# Access speed is more important for SSDs.donjoe 2011-01-21 05:31
"the average linear read and write bandwidth [...] I personally consider this the single most important comparison of storage drive products"

You personally have no idea what you're talking about - SSDs are way too expensive per GB to be used mainly for long-term storage, so it makes no sense to talk about them as being anything other than active, system-and-applications or server drives, where the ACCESS SPEED is the key factor, not the linear I/O speed.
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# RE: Access speed is more important for SSDs.Olin Coles 2011-01-21 08:27
How do you take that quote to mean that I endorse SSDs for primary storage? Considering how many SSDs I've personally tested (over fifty), and how many more I've personally deployed on servers and workstations (thirty), I think you might want to reconsider your baseless claim.

What I'm saying here is that linear I/O is more important than the other factors, since SSDs will already inherently deliver faster access speed and transfer bandwidth. In my opinion, measuring input/output operations is more important than measuring speed or response time on an SSD.
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# RE: ACARD ANS-9010 DDR2 SATA RAM-Drivethrakkor 2011-12-28 11:15
I suspect that the main limitation here is the bridge chip. The RAM, even DDR2, has huge speed headroom (proven by mainboard chipsets); the SATA interface may or may not stand in the way of really high transfer speeds, but given that many modern days Flash based SSDs have competitive speeds, the remaining factor is the bridge chip, along with the design of the board. I really expect this kind of device, the RAM based SSD to offer over 300 megabytes / second read and write, easily, no RAID required.
Conclusion: SODIMM DDR3 for improved RAM density (16 slots would be really top), SATA3 interfacing (there aren't even may SATA3 HDDs) and an improved bridging design (even a small dedicated computer of its own would be necessary to handle the huge bandwidth). Since there are many 300 to 400 USD graphic monsters that are used just for games - what a stupid purpose - I don't even blink at spending, say, 500 USD on such a future DDR3 based SSD, and that's before any SODIMM would make its way into the slots. I don't even blink at that price. But, please, 150 MB/s ? Hah... More like 300 - 400, SATA3 or even SAS...
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# RAMhirnaxi karelia 2012-06-12 14:27
hi i want to know about how can i find ram; speed, pins, title, and eles.
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