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WD Caviar Black 6gb/s vs. 3gb/s?

post #1 of 10
Thread Starter 
What is the difference in performance between the two? I got a deal on a 3gb/s but I can easily return it if the 6gb/s is going to make a noticeable difference. Thanks!
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post #2 of 10
It won't make a noticeable difference, especially because it's a mechanical drive. SSD's will benefit from 6Gbps more, but even then it's a small boost. Stick with the one you have now.
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post #3 of 10
I have been wondering the same thing. I don't think there will be a difference because I do not believe any hard disk with a traditional spinning disk construction is going to be able to saturate the Sata 3gb/s connection. I imagine WD is just preparing for the shift to Sata 6gb/s with its new models. I imagine that all new drives will be Sata 6 gb/s in the future simply because that will be the new standard.

Not even 1 hour ago I was looking at 2 Caviar black models on Newegg that had identical prices and storage capacities. One was Sata 6gb/s and one was Sata 3 gb/s. I was thinking I would choose the 6 gb/s because, well, why not?
    
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post #4 of 10
Thread Starter 
Thanks for the replies! They had a $10 off coupon for the 3gb/s 640GB for like $50 Shipped so I picked it up. As long as I will see no performance loss vs. the 6gb/s, then I'm extremely happy with my purchase. ^_^
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post #5 of 10
should really make no difference IMO
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post #6 of 10
You won't notice it. SSD's that run on 3Gb/s are hitting speeds twice as fast as mechanical drives can sustain, and WD Blacks are some of the fastest around (minus Velociraptors). Enjoy smile.gif
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post #7 of 10
Thread Starter 
I will definitely be purchasing an SSD in the near future. This is just to get me by for now and Caviar Blacks seem to be excellent in performance and dependability.

Thanks again. Reps given for the help. smile.gif
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Gideon
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post #8 of 10
I had two WD Blacks 6GB drives. I tried them in every combo. I had the best results using the Intel Rapidstorage drivers with SATA 3GB. the Marvell controller with SATA 6GB was slower. Since, got rid of the WD Black (too noisy) and got two WD RE4 for a RAID0 setup. Much faster than any mach drive.
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post #9 of 10
SATA III got x2 bigger physical layer that SATA II, saying that II and III are same just by running a bench (e.g HDTune) is mistake.
You may not see the difference unless you perform specific tasks, if you got deal on SATA II then get it wink.gif
BTW, all the SSDs in the world except Crucial C300 are running on SATA II:p
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post #10 of 10
Yeah my WD 640 black Sata III drive has a 64mb cache, I think the Sata II version is 32mb cache. It'll make a difference maybe not a huge one. The Sata II drive should be more than enough though.
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