iXBT Labs - Computer Hardware in Detail






Seagate Barracuda 7200.7 Hard Drive Review

March 10, 2003

The first generation of Seagate Barracuda ATA was a success thanks to the outstanding linear read speed. But as time went by, the drives were getting more ordinary, and the fifth generation - Seagate Barracuda ATA V - had nothing extraordinary. Either this fact or the marketing policy made the company change the line name and "skip" the sixth generation. So, now we have Seagate Barracuda 7200.7 line.


    SoftSonic(TM) Fluid Dynamic Bearing (FDB) motor; 
  • 3D Defense System(TM); 
  • SBT (sound barrier technology). 

Fields of application (according to company) 

  • Mainstream and high-performance computers
  • Entry-level servers (including RAID) 
  • Cost-Effective Network Attached Storage 
  • Game systems
  • Home Media Servers

Have a look at the specs of the new line in comparison with the older one.

  Barracuda 7200.7  Barracuda ATA V
Capacity 40/80/80/120/120/160/160 GB  40/60/80/120/120 GB
Spindle speed 7200 RPM
Buffer size 2/2/8/2/8/2/8 MB 2/2/2/2/8 MB
Heads 1/2/2/3/3/4/4 2/2/3/4/4
Platters 1/1/1/2/2/2/2 1/1/2/2/2
Avg. Sustained Transfer Rate, Mbytes/sec >58 >44
Latency 4.16 ms
Average search time 8.5 ms 9/9/9.14/9.14/9.14 ms

Some specs at the company's site are incorrect (ST380013A is specified having a 2MB buffer, which is wrong) and we have changed them according to what the company told us directly. The new line has a high recording density (80GB per platter) and a much lower average search time (by 0.5 ms). It should boost the performance markedly in all tests. Besides, the developers removed the SeaShield that was attached the the previous drives underneath. I'm not sure but I think it's done for better heat removal. The only confirming fact is that the temperature of Seagate Barracuda ATA IV with the SeaShield coincides with that of Seagate Barracuda 7200.7 without it (460C was fixed by the built-in sensor after three-hour operation of Intel IOMeter. The measurements were made with DTemp). 


The testbed is standard. 

  • Mainboard - Iwill WO2-R (BIOS ver. 6.00PGN); 
  • Processor - Intel Pentium III 800EB; 
  • Memory - 256 MB PC133 SDRAM; 
  • System disc - IBM DTLA 307015; 
  • OS - Windows 2000 Professional SP2.

The test suite is standard as well. 

  • Ziff-Davis WinBench 99; 
  • HDTach 2.61; 
  • Intel IOMeter. 

We tested ST340014A 40GB. 

Ziff-Davis WinBench 99 / HDTach 2.61

Well, it's pretty nice.

The read speed at the beginning even exceeds 60 millions bytes per second, and the diagram data are proved with HDTach - Read speed maximum 61316.0kps. The diagram itself looks perfect.

It's not clear why the write speed is not rising up. 

Instead of falling down the search time goes up by 1.5 ms!!! I understand that Seagate has its own technique of measuring this parameters, and it's impossible to calculate it by adding the specified latency and average search time (4.16 + 8.5 = 12.66 ms). But I do trust the test results. Average Response Time in Intel IOMeter (Random Read in case of line loading) also shows 15.4324 ms. Maybe, I got a faulty sample. But the company gave no response and didn't offer yet another sample to test. I will try to test another sample, but remember that this is not a preproduction  drive, and you have every chance to get a drive with the same characteristics. 

Well, the following tests are not going to demonstrate anything good, but let's carry out them anyway.

High-End WinMark scores rise marginally and Business WinMark results fall down. The increase linear read speed go along with the increase access time. And as I have already mentioned the new models lag behind in Business WinMark.  

Intel IOMeter

Here the access time is of the greatest importance...

Recording is terrible. I think that there are problems in the firmware version; well, let's wait for the company's comments. 

Now have a look at the summary results of the latest models of the leading companies to find out what market this model target.

The read speed is excellent, in contrast to the write one. 

The access time is unexpectedly pretty good. If it were not for the expectations, it would be similar to the very first line which had superb read speed and rather big access time. 

High-End WinMarks look pretty good, though Business scores are not shining. 

Seagate's drive goes on a par with Maxtor's models and outpaces them at higher loads. 

Recording is very poor - the drive falls into the tail. 


The new Seagate's model reminds the first ATA Barracudas. Unfortunately, the expectations of the specs didn't come true. The new drive is not a leader but a good but mid-level drive with a high read speed and a low write one. Soon I will test a 80GB model and then make a final verdict.  


Nikolay Dorofeev (niko@ixbt.com)

Write a comment below. No registration needed!

Article navigation:

blog comments powered by Disqus

  Most Popular Reviews More    RSS  

AMD Phenom II X4 955, Phenom II X4 960T, Phenom II X6 1075T, and Intel Pentium G2120, Core i3-3220, Core i5-3330 Processors

Comparing old, cheap solutions from AMD with new, budget offerings from Intel.
February 1, 2013 · Processor Roundups

Inno3D GeForce GTX 670 iChill, Inno3D GeForce GTX 660 Ti Graphics Cards

A couple of mid-range adapters with original cooling systems.
January 30, 2013 · Video cards: NVIDIA GPUs

Creative Sound Blaster X-Fi Surround 5.1

An external X-Fi solution in tests.
September 9, 2008 · Sound Cards

AMD FX-8350 Processor

The first worthwhile Piledriver CPU.
September 11, 2012 · Processors: AMD

Consumed Power, Energy Consumption: Ivy Bridge vs. Sandy Bridge

Trying out the new method.
September 18, 2012 · Processors: Intel
  Latest Reviews More    RSS  

i3DSpeed, September 2013

Retested all graphics cards with the new drivers.
Oct 18, 2013 · 3Digests

i3DSpeed, August 2013

Added new benchmarks: BioShock Infinite and Metro: Last Light.
Sep 06, 2013 · 3Digests

i3DSpeed, July 2013

Added the test results of NVIDIA GeForce GTX 760 and AMD Radeon HD 7730.
Aug 05, 2013 · 3Digests

Gainward GeForce GTX 650 Ti BOOST 2GB Golden Sample Graphics Card

An excellent hybrid of GeForce GTX 650 Ti and GeForce GTX 660.
Jun 24, 2013 · Video cards: NVIDIA GPUs

i3DSpeed, May 2013

Added the test results of NVIDIA GeForce GTX 770/780.
Jun 03, 2013 · 3Digests
  Latest News More    RSS  

Platform  ·  Video  ·  Multimedia  ·  Mobile  ·  Other  ||  About us & Privacy policy  ·  Twitter  ·  Facebook

Copyright © Byrds Research & Publishing, Ltd., 1997–2011. All rights reserved.