File Transfers Image 1 of 3 Image 2 of 3 Image 3 of 3 We dont run many application tests on external or portable storage products because the typical workload is sequential in nature.
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Wd Passport Vs Wd Passport Reconfigure Portable Storage ProductsThe Porsche Design Mobile Drive 4TB currently sells for 229.99 at Amazon. Its followed by the LaCie Rugged RAID Thunderbolt 4TB that currently sells for 379. The Rugged RAID uses a dual interface design that allows you to connect the drive to Thunderbolt 2 or USB 3.0 via a Micro-B connector. This drive uses two internal drives in RAID 0 but it is one of the most expensive products in the group. The Seagate Backup Plus Ultra Slim only scales to 2TB, but it features a full-length metallic finish. The 2TB model currently sells for 129.99. Thats very close to our My Passport Ultra 4TB were testing, but it only comes with half the capacity. The ioSafe Rugged Portable is the portable HDD you take into a war zone. The 1TB model from ioSafe.com costs nearly 1,200 thanks to its solid aluminum enclosure and IP68 rating. We have the first generation 750GB drive that is no longer in production. If you ask nicely and can pay the enormous cost, you can even get it in milled titanium. Block Size Testing Image 1 of 2 Image 2 of 2 The three modern drives (My Passport Ultra, LaCie Porsche Design, and Seagate Backup Plus Ultra Slim) deliver nearly identical performance as we increase the size of the data transfers. The newer drives provide a significant performance improvement over the two older products. The LaCie Rugged RAID uses a cost-increasing RAID 0 with two drives, but aside from that model, there isnt a clear performance leader. It shouldnt come as a surprise that the newer products with higher platter densities and refined cache algorithms are faster than the older products. People often feel that the new models dont provide enough of a performance gain to justify a new purchase. In reality, newer products can deliver almost twice the performance of the drives sold just a few years ago. Wd Passport Vs Wd Passport Reconfigure Full LBA SpanFull LBA Span Performance Image 1 of 2 Image 2 of 2 Like many newer HDDs, the Western Digital My Passport Ultra has an advanced cache system. WD originally developed the technology for enterprise use and migrated it downstream to consumer products. You can see the impact in our sequential read test across the entire usable LBA range. The write test shows how performance drops off as we move from the fastest to the slowest points of the platter. HDD vendors have learned to use the fastest area of the platter as a cache to back up the small DRAM buffer. ![]() In some cases, drives keep frequently-accessed data in this reserved area for quicker access.
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