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OCZ Vertex 120GB SATA SSD OCZSSD2-1VTX120G E-mail
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Written by Olin Coles   
Friday, 20 February 2009
Table of Contents: Page Index
OCZ Vertex 120GB SATA SSD OCZSSD2-1VTX120G
Features and Specifications
First Look: OCZ Vertex SSD
Vertex SSD Internal Components
SSD Testing Methodology
Random Access Time Benchmark
Basic IOPS Performance
Linear Bandwidth Speed
I/O Response Time
Buffered Transaction Speed
Windows XP Startup Times
The Truth Behind Heat Output
Solid State Drive Final Thoughts
OCZSSD2-1VTX120G Conclusion

Disclaimer: SSD Testing

EDITORS NOTE 05/10/2009: Benchmark Reviews has re-tested the OCZ Vertex with the latest v1.10 firmware, which includes TRIM support, and the resulting performance was generally identical to the previous firmware. Please remember that TRIM is a Windows 7 supported feature, and does not improve performance on Windows XP or Vista Operating Systesm.

Benchmark Reviews recently published an article which details Solid State Drive (SSD) Benchmark Performance Testing. The research and discussion that went into producing that article changed the way we now test SSD products. Our previous perceptions of this technology were lost on one particular difference: the wear leveling algorithm that makes data a moving target. Without conclusive linear bandwidth testing or some other method of total-capacity testing, our previous performance results were rough estimates at best.

It's critically important to understand that no software for the Microsoft Windows platform can accurately measure SSD performance in a comparable fashion. Synthetic benchmark tools such as HD Tach and ATTO Disk Benchmark are helpful indicators, but should not be considered the ultimate determining factor. That factor should be measured in actual user experience of real-world applications. Benchmark Reviews includes both bandwidth benchmarks and application speed tests to present a conclusive measurement of product performance.

SSD Testing Methodology

Solid State Drives have traveled a long winding course to finally get where they are today. Up to this point in technology, there have been several key differences separating Solid State Drives from magnetic rotational Hard Disk Drives. While the DRAM-based buffer size on desktop HDD's has recently reached 32 MB and is ever-increasing, there is still a hefty delay in the initial response time. This is one key area in which flash-based Solid State Drives continually dominates because they lack moving parts to "get up to speed".

However the benefits inherent to SSD's have traditionally fallen off once the throughput begins, even though data reads or writes are executed at a high constant rate whereas the HDD tapers off in performance. This makes the average transaction speed of a SSD comparable to the data burst rate mentioned in HDD tests, albeit usually lower than the HDD's speed.

Comparing a Solid State Disk to a standard Hard Disk Drives is always relative; even if you're comparing the fastest rotational spindle speeds. One is going to be many times faster in response (SSD's), while the other is usually going to have higher throughput bandwidth (HDD's). Additionally, there are certain factors which can effect the results of a test which we do our best to avoid.

Test System

  • Motherboard: Gigabyte GA-EX58-UD4P (Intel X58/ICH10R Chipset) with version F6b BIOS
  • Processor: Intel Core i7-920 BX80601920 2.667 GHz
  • System Memory: 6GB Tri-Channel DDR3
  • Operating System: Windows XP Professional SP-3 (optimized to 16 processes at idle)

Drive Hardware

Test Tools

  • EVEREST Ultimate Edition v5.00.1650 by Lavalys: Disk Benchmark component tests linear read and write bandwidth speed
  • ATTO Disk Benchmark v2.34: Spot-tests static file size chunks for IOPS benchmarking
  • HD Tach RW v3.0.4.0 by Simpli Software: Approximate buffered read and write bandwidth speed
  • PCMark05 by Futurmark Corporation: Synthetic measurement of real-world productivity
  • System Speed Test v4.78 by Vladimir Afanasiev: Accurately measures random access response time



 

Comments 

 
# Heat QuestionsGreg 2010-10-05 09:29
The heat section is unclear, you say SSD at load vs idle temps in one sentence but otherwise it seems you are comparing idle temps. The SSDs seem to cover the high and low end of the temperature spectrum so it is hard to understand where you get the conclusion that they are generally cooler.
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# SSD Heat OutputOlin Coles 2010-10-05 09:32
Hello Greg: I've discontinued the measurement of heat output from SSDs. This is because each series of controller operates at a different temp, and the enclosure makes a difference as to how much heat is dissipated out through the walls. In general, SSDs emit a low level of heat, much less than any hard drive, but they do still produce heat.
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# idle vs. full loadmike 2012-07-07 22:53
Could you please do just 1 more set of testing...

Even just 2 SSD vs 2 HDD's, Do an idle temp comparison vs a heavy usage test

Would be very interesting to see! Great article!
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# Vertex SpeedsJack 2013-04-05 13:39
This is a couple years old but these HDD's were discontinued and OCZ will replace the defective units with Vertex Plus Revision 2. My speeds were hitting about 220MB/sec max and averaging 180MB/sec.
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# RE: OCZ Vertex 120GB SATA SSD OCZSSD2-1VTX120GNikolai 2013-07-08 17:31
but one just like it. New but from e-bay. It died in less then a year.
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