Difference between noise from a WD2500BEVT (5400 rpm) and a WD2500BJKT (7200 rpm)?

Hello!
Anyone know if there is any noticeable difference between a WD2500BEVT (5400 rpm 2.5" HDD) and a WD2500BJKT (7200 rpm 2.5" HDD) in terms of noise and heat?

Regards

 

On average, the difference would be negligible.

 

Really? How do you know this? By their very nature, 7,200RPM hard drives are generally hotter and more nosier than 5,400RPM hard drives.

 

ok, generelly hotter is what I've heard as well, but I think I read somewhere that 7200 rpm HDDs are closing in on 5400 rpm HDDs in terms of heat, noise and power consumption... So what do you think?

 

Actually, according to the specifictions from WD the 7200 rpm drive is more quiet???:

Performance Specifications
Rotational Speed 5,400 RPM (nominal)
Buffer Size 8 MB
Average Latency 5.50 ms (nominal)
Seek Times
Read Seek Time 12.0 ms
Track-To-Track Seek Time 2.0 ms (average)
Acoustics
Idle Mode 24 dBA (average)
Seek Mode 0 26 dBA (average)


Performance Specifications
Rotational Speed 7,200 RPM (nominal)
Buffer Size 16 MB
Average Latency 5.50 ms (nominal)
Seek Times
Read Seek Time 12.0 ms
Track-To-Track Seek Time 2.0 ms (average)
Acoustics
Idle Mode 22 dBA (average)
Seek Mode 0 25 dBA (average)

And the power consumption is also almost identical...

 

There can be a lot of variation between models of the same type and even more variation between companies and HDD families, but the difference in recent generations are minimal. For example, while 7200RPM drives consume a bit more power for a bit more performance, that extra <0.5W isn't going to noticeably affect heat or power consumption (battery life). Heat and noise are more a factor of the notebook chassis itself since it depends on the ventilation and hard drive cage (rubber grommits to dampen sound for example). Generally, noise from rotation is masked by the greater noise of head movements, so a higher rotation speed doesn't necessarily mean it will be noisier.

 

I don't have both exact models, but I do own their next of kin, WD3200BEVT and WD3200BJKT. I can confirm that WD3200BEVT, although it's a 5400RPM drive, is hotter than the 7200RPM WD3200BJKT. In term of noise, WD3200BEVT turns out to be noisier than WD3200BJKT. One thing that WD3200BEVT is better than WD3200BJKT is vibration. Although still acceptable, WD3200BJKT makes more vibration compared to WD3200BEVT.

My conclusions are based on the installation of both drives in the same position, as the 1st HDD in my Dell Studio 17 laptop, and both drives have the same content since WD3200BEVT was cloned to WD3200BJKT using Acronis.

 

Thanks for the info.
Does the higher CPU demand indicate that it's using more power and generating more heat?

 

Even though its a cloned drive, we don't know what background processes were also trying to run at the time the benchmarks were running, so no the CPU demands can be effectively ignored.

 

What would make one drive run hooter than another, if they are both rated at the same power usage?

Also, isn't the heat of the drive negligible as comapred to the CPU?

That's why i was asking about the CPU usage.

 

One drive may run hotter because of inferior bearings, multiple platters, or simply a bad (inexpensive, if you prefer) design.

Yes, the CPU gets hot, but it cools down almost instantly when it's idle, when a HD gets hot, it stays hot until you turn your computer off. I have seen notebooks with 54 degree celsius HD temps and that's just idling for an hour or so (running on batteries!) - I always use mine on a notebook cooler powered by USB, at least when I'm demanding it to do any real work.

 

I dont trust WD. You might want to consider Hitachi. Do you drive Chrysler or Toyota? Caddy or Lexus? Using one thats been powered on/off 1100 times with nearly 6,400 hours logged on over 2 years and runs a cool 40 degrees celsius. No noise no vibration.

 

I was/am a diehard Hitachi fan (just waiting for the 7K500 to arrive), but am currently running a Scorpio Blue 500GB with no problems at all.

What problems did you have with WD?

I don't drive... I'm chauffeured.








I wish!

 

click click click

 

Was that really necessary to copy and paste the whole page instead of just a link...

 

as reasonable as it it is for you to post your offensive speed test? at least my data is relevant to the discussion on this thread.

 

That's in my signature... lol offensive just b/c it's faster than yours?

 

sgogeta4, yeah! Insane speeds, wish I could experience that...

BaldwinHillsTrojan, I didn't even see what you copied/pasted... link please?

 

I took it down to appease the board Gestapo. Better watch out, he/she might criticize and suggest modifications to your post!!!!!!!!!!!!!!!

www.hitachigst.com/tech/techlib.nsf/techdocs/3FDCAB792901CF4B862575D8005AB39B/$file/TS7K500_DS.pdf

 

So, for someone like me who needs to upgrade his SATA notebook drive, does not need 7200rpm, does not need anything larger than 160 gb, and just wants something that is quiet and reliable, what do you guys suggest?

These days, even the 320gb 7200 is ridiculously cheap, so saving a few dollars is not a factor.

Will the 160gb or 250 gb be quieter and more reliable?
The poster here sais that his 320 gb 5400 generated more heat than his 320gb 7200. Was that a fluke or are the newer drives better?

 

Just to clarify: I could go for anything between a 5400 160gb and a 7200 320gb.

 

The newer drives are almost always better. Even if you don't need the extra capacity, you'll still enjoy 2009 mechanical HD technology vs. 200X tech.

If you really don't care - just make sure its not a Seagate!

 

I second that insight. The other thing is why worry about the size? You focus should be on price/GB as current generation HDDs are low heat low vibration. If you can get a HDD where the price/GB for a 5400 and 7200 are equivalent, why go with the older tech? Newer is synomymous with increase in size is a given. Right now, your NB has a high price/GB, at least even it out or its not effective use of your money.

 

Thanks.

As I said, the money is not an issue, as all the drives are ridiculously cheap ($70 for the 320gb 7200, while the others are $15 less).

What matters is what would be most reliable and quiet.

 

Before changing the HDD from WD3200BEVT (the 5400RPM one) to WD3200BJKT (the 7200RPM one), few times I checked the temperature using software such Crystal Disk Info. The reported temp of WD3200BEVT was indeed higher than the current WD3200BJKT. So, it's not just when I did the benchmark tests.

About newer drives... AFAIK, both drive are still the current models. So, it's not like that they belong to the different generations. It seems like WD has put better technologies in the WD3200BJKT, so that, although being a 7200RPM, it could run cooler than the 5400RPM WD3200BEVT.

 

aidil,

just because they're still selling, doesn't mean they're current tech.

I'm sure I waited over two years for the 7K100 to replace the 7K60 I had, they were both selling for awhile, but in no shape or form did the 7K60 compare to the 7K100 - even if it was the cheaper of the two (just before supplies ran out).

 

customer segmentation.

 

In my case, both of my drives, WD3200BEVT and WD3200BJKT, were manufactured not so much different in time. The BEVT has production date of August 2008 and the BJKT was on November 2008. Both were manufactured in Thailand.

I'm not saying that WD3200BEVT and WD3200BJKT have the current technologies. At least for both drives and for both market segmentations (5400RPM segment and 7200RPM segment), up to now WD hasn't changed the exact models.

I'm just saying that since my BJKT, although being a faster RPM drive, able to perform with less noise and less reported heat than the BEVT as a lower RPM drive, then the BJKT just had better technologies. So, for anyone who thinks that getting a 7200RPM drive would suffer from heat and noise issues, they shouldn't worry about such things.

 

Thanks.
But, didn't you find that there was more vibration in the 7200?

 

Yes, as I've mentioned before in the #7 post, the only demerit of WD3200BJKT against WD3200BEVT that I could really notice is the vibration. At least based on the 2 unit of WD3200BJKT that I have, installed in Dell Studio 1735 and Fujitsu LifeBook S6410, I could feel both palm rests vibrate more compared to when both laptops were still using the stock 5400RPM hard drives. But still it's not that big deal, 'cause at least I don't feel annoyed.