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Wd caviar green vs caviar black

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August 18, 2011 7:58:22 AM

Hello,
any difference between Western Digital Caviar Black 2TB 7200RPM SATA 6Gb/s 64MB and Western Digital Caviar Green 2TB 7200RPM SATA 6Gb/s 64MB?
thx in advance
a c 371 G Storage
August 18, 2011 12:03:15 PM

Green drives are more for storage as they don't have the performance of the black drives. They also consume less power. The black drives of course offer more performance and make good OS drives.
August 18, 2011 1:43:35 PM

thx
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a c 288 G Storage
August 19, 2011 12:25:01 AM

Your question has a false premise. You appear to have been confused (deceived?) by WD's "IntelliPower" marketing gimmick.

In fact Caviar Green models spin at 5400 RPM, not 7200 RPM. Therefore, all other things being equal, the Black drive should have a much faster data transfer rate than the Green. The difference should be in proportion to their spin speeds, ie 7200:5400, or 4:3. In practice, the Green drives tend to get higher density platters, so this mitigates the disparity.
August 21, 2011 5:01:14 PM

hi fzabkar,
it does have to be 7200rpm for what i need.
thx
August 30, 2011 12:00:36 AM

Unless a lot of companies have made mistakes I am seeing a lot of the new SATA 6Gb/s 64MB Caviar both Black and Green with spin speeds of 7200rpm. I am also baffled by seeing a 2TB black drive at £110 in price and the exact same Green drive from WD with the exact same spin speed priced a lot higher at one online retailer here in the UK. Wonder if that is a mistake for both? E.g. the price and the spin speed data for these two drives being both 7200rpm?

If correct it does still appear that the Black drives have an advantage because I notice latency on the latest ones down to around 4.2ms. That's pretty good IMHO. If you buy a few big drives and short stroke them in a raid set up I dare say even at 7200rpm that with these new 6Gb/s Caviar Black drives you're going to definitely blast anything out the water in terms of what Solid State Drives can do. You may not even need to raid it just format it to only use a small proportion of the space say 10 or 15% max and you will be spinning even faster.

I love WD drives they're great especially the Caviar Blacks. I've been a happy customer for a while now. I also think the Deskstar drives are pretty good abd very good value too if you need anything a tad cheaper, but they don't tend to make as many of those.

Cheers,
John
a c 288 G Storage
August 30, 2011 12:13:10 AM

I believe the Green drives are being incorrectly advertised. They spin at 5400 RPM, not 7200 RPM. Intellipower is a crock.

BTW, the average latency is half the time for one revolution. For a 7200 RPM drive, that's 1/2 x 8.33ms = 4.17ms.
October 16, 2012 12:40:11 PM

i got a green HDD 1 TB just a week ago now i cant get black :( 
i can use it for gaming+storage ??? but i m not sure if it is SATA III or not ..?
October 16, 2012 2:24:12 PM

Are the warranties the same ? I know the black , at least the ones I have are 5 years , green I think is 3 years . If that matters to you
October 16, 2012 2:47:38 PM

Hi there,

We use a lot of both types of these drive. Over the months we much prefer the performance and reliability of the WD Blacks.

a c 371 G Storage
October 16, 2012 4:30:25 PM

The green drives also go idle quite a bit (to conserve power). This causes problems for some RAID controllers. It also annoying when you need to access the drive and you have to wait a few seconds for it to spin back up. For the amount of power it saves, I'd rather buy the blacks.
October 16, 2012 4:49:40 PM

hmm but i got the green 1 already :( ..so no option is left for me it is WD10EARX
so can i play games in it ??
!