Are Western Digital ones good? Should I get one of those or are Seagate better? How about other brands?
WD had a few driver issues recently but that's only if you use the custom turbo software which is junk. Otherwise, either if them should be fine. If I was going to choose I'd probably buy the Seagate.
Hello,
I am also looking for an external hard drive, having just ordered an iMac with a 256 Gb SSD. My questions are: will there be any difference in performance over a portable and a desktop drive? I want to put my iTunes library and audio samples on it, so it will have to be switched on at all times. Will USB 3 be sufficient for streaming audio/files?
Thanks!
By performance I am guessing you mean read and write speeds.
Most portables are usually 5400rpm unless you get a special 7200rpm portable such as the Touro Pro. Desktops drives vary and are 5400, 5900 or 7200rpm. It is hit and miss sometimes. Seagate even produces 5900 and 7200 4TB desktop drives with the exact same labelling and box etc. You would never know unless you pull them apart.
Seagate's 3TB drive (USB Desktop or OEM) is exceptionally fast (over 200MB/s read and write sometimes) and even rivals the WD Velociraptor that spins at 10,000rpm. It is also very good value for money. This drive would be my pick for value for money, reliability and performance.
Seagate's 4TB is similar to the 3TB in performance, but only if it is the 7200rpm drive. The 5900 is cooler but not as fast performance wise (still surprisingly close though). They are close in performance because the 7200 spins faster but has 5 platters with lower density while the 5900 if 4 platters with the highest density. Simply put the 5900 spins slower because it can pack in more in the reading and writing. Once Seagate ups the 5900rpm 4 platter 4TB it will read and write a lot faster than the 7200rpm 5 platter 4TB. Having said that I believe they only make the 5900rpm version now. I run a 5900rpm 4TB in my Time Capsule and a whole bunch of 7200rpm 4TBs in RAID setups. The 7200's are hard to come by.
Sorry for that ramble.
Forget the 'green' drives if you are looking for performance.
Generally though it can be said that Desktop drives are faster than portables more times than not, particularly if you get a 7200rpm one.
Yes USB3.0 is plenty for streaming.
Thank you so much for this useful reply, it's clearer now.
http://www.hardeschijfstore.be/prod...pansion-hard-drive/&__utmv=-&__utmk=191487658 - Is this the Seagate 3 TB drive you were referring to? Sounds like a good deal.