There are nonetheless a lot of PCs on the market that might tackle new life with a easy hard-drive-to-SSD upgrade, and Sandisk’s Extremely 3D is likely one of the finest, if not one of the best SSD for the job. Utilizing the identical 3D (stacked, or layered) TLC NAND discovered within the WD Blue 3D SSD we additionally examined (WD owns Sandisk) it gives the capability of TLC with out the write efficiency penalties we’ve skilled beforehand.


The Sandisk Extremely 3D is available in the usual SATA 6Gbps, 2.5-inch, 7mm-thick type issue that’s the norm for the class nowadays. Being solely 7mm thick means it’s appropriate for upgrading quite a few mid-sized and desktop substitute laptops. (The carefully associated WD Blue 3D—Western Digital owns Sandisk—additionally ships within the M.2 type issue, if that’s what you want.)

Although most customers will solely see the Extremely 3D when putting in it in a pc, we must always notice that the Extremely 3D is a notch above the common drive in look—black, with a cultured purple emblem. If you happen to’re filling out the storage on a gaming rig with clear panels, that may very well be a consideration.

The Extremely 3D is offered in 250GB, 500GB, 1TB, and 2TB capacities, that we noticed on-line for about $100, $165, $285, and $550 respectively. That’s round 25 cents per GB within the highest capability. The 250GB mannequin is rated for 100TBW (TeraBytes Written) over the lifetime of the drive, the 500GB mannequin for 200TBW, the 1TB model for 400TBW, and the 2TB model for 500TBW.

We’re unsure why the TBW ranking for the biggest capability would drop from 40 p.c per GB to 25 p.c. Maybe it’s not over-provisioned as heartily—in different phrases, there’s not as a lot additional NAND on board to switch worn-out cells. All capacities are lined by a Three-year guarantee.


The Extremely 3D’s good efficiency is notable for not struggling the write efficiency penalty you see when equally priced TLC NAND-based drives run out of cache. WD/Sandisk claims this is because of a extra multi-tiered caching approach combining TLC and TLC handled as SLC. That’s what everybody else does, however apparently WD is both higher at it, or makes use of extra cache. We threw an additional 80GB information set at it to ensure it may maintain the tempo. It did.

We check utilizing AS SSD and CrystalDiskMark, then again that up with real-world copying of a single giant 20GB file, in addition to a 20GB mixture of smaller recordsdata and folders.

As you’ll be able to see beneath, there’s not an entire lot of distinction between the Extremely 3D’s efficiency and that of MLC drives. Word the dearth of a dropout within the AS SSD 10GB write check, the place the Samsung EVO collection and different TLC drives endure.

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