Sandisk Ultra 3d Vs Ultra Ii

Sandisk

At a Glance

Adept's Rating

Pros

• Very proficient overall and sustained performance
• Affordable in all capacities

Cons

• A bit wearisome reading smaller files and folders
• 2TB version has a lower TBW rating

Our Verdict

The Ultra 3D and its near identical WD Bluish 3D sibling are a step up from TLC drives in functioning, simply deliver the aforementioned 1TB and 2TB of capacity at roughly the aforementioned toll. Not as fast every bit SSDs such as Kingston's HyperX Savage and Crucial's BX300, but not limited in chapters. Short list.

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Gratuitous

There are still lots of PCs out there that would have on new life with a elementary hard-bulldoze-to-SSD upgrade, and Sandisk'due south Ultra 3D is one of the best, if non the best SSD for the job. Using the same 3D (stacked, or layered) TLC NAND found in the WD Bluish 3D SSD we as well tested (WD owns Sandisk) it offers the capacity of TLC without the write operation penalties we've experienced previously.

Design

The Sandisk Ultra 3D comes in the standard SATA 6Gbps, 2.v-inch, 7mm-thick form factor that'southward the norm for the category these days. Existence only 7mm thick means information technology's suitable for upgrading a number of mid-sized and desktop replacement laptops. (The closely related WD Blue 3D—Western Digital owns Sandisk—also ships in the M.2 form factor, if that'southward what you need.)

Though most users will simply see the Ultra 3D when installing it in a computer, we should notation that the Ultra 3D is a notch to a higher place the average drive in appearance—black, with a classy red logo. If you're filling out the storage on a gaming rig with articulate panels, that could be a consideration.

The Ultra 3D is available in 250GB, 500GB, 1TB (the size we tested), and 2TB capacities, which we saw online for about $100, $165, $285, and $550 respectively. That's around 25 cents per GB in the highest capacity. The 250GB model is rated for 100TBW (TeraBytes Written) over the lifetime of the drive, the 500GB model for 200TBW, the 1TB version for 400TBW, and the 2TB version for 500TBW.

Nosotros're not sure why the TBW rating for the largest capacity would drop from 40 percent per GB to 25 percent. Perhaps it's not over-provisioned as heartily—in other words, there'south not as much extra NAND on board to replace worn-out cells. All capacities are covered by a 3-twelvemonth warranty.

Performance

The Ultra 3D's practiced performance is notable for not suffering the write operation punishment you see when similarly priced TLC NAND-based drives run out of cache. WD/Sandisk claims this is due to a more multi-tiered caching technique combining TLC and TLC treated equally SLC. That's what everyone else does, only apparently WD is either meliorate at it, or uses more than cache. We threw an actress 320GB data set at it to make sure it could sustain the pace. Information technology did.

Nosotros test using Every bit SSD and CrystalDiskMark, then back that up with real-earth copying of a single big 20GB file, besides equally a 20GB mix of smaller files and folders.

As yous tin can encounter beneath, in that location's non a whole lot of difference between the Ultra 3D'due south performance and that of MLC drives. Note the lack of a dropout in the As SSD 10GB write examination, where the Samsung EVO serial and other TLC drives suffer.

IDG

The Sandisk Ultra 3D is faster overall than whatever other TLC drive nosotros've tested.

The Ultra 3D didn't write our 20GB mix of files and folders every bit quickly as we'd hoped, merely it'south nevertheless a good performer overall. And certainly faster writing than the Samsung EVO series.

IDG

For some reason, as you can see in the chart above, the Ultra 3D didn't fare all that well reading our 20GB mix of files and folders, but overall, it'southward still a better performer than the Samsung 750 EVO. And it's certainly ballpark in most respects with the average MLC NAND SSD.

Conclusion

The Sandisk Ultra 3D doesn't displace the Crucial BX300 as our electric current meridian choice amid deal or mid-range SSDs, unless you demand more than that drive's 480GB maximum capacity. And so information technology'south the Ultra 3D for sure, even over the Samsung 750 EVO.  Fast, affordable, skilful-looking, a nice TBW rating… What's not to like?

Annotation: This commodity was edited to reflect new testing with a 320GB data fix rather than the 80GB data prepare used originally.

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Jon Jacobi is a musician, former x86/6800 programmer, and long-time computer enthusiast. He writes reviews on TVs, SSDs, dash cams, remote access software, Bluetooth speakers, and sundry other consumer-tech hardware and software.

Source: https://www.pcworld.com/article/407143/sandisk-ultra-3d-ssd-review-big-tlc-capacity-fast-mlc-performance.html

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