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Seagate Laptop Thin SSHD 500GB preview: 2.5-inch hard disk with SSD cache

Let's say you have a laptop with only one hard disk slot, and you'd like to benefit both from the speed of an SSD and the large volume of a hard disk. The easiest and most expensive solution is to buy a 512GB SSD.

Seagate has another solution, that's somewhere in the middle. The Seagate Laptop Thin SSHD 500GB is a 2.5-inch hard disk with an integrated 8 GB of SSD cache. It costs an average of £65 or €x78, which is more than a conventional 2.5-inch 500 GB hard disk, but only the fraction of a what a 512 GB SSD would cost.

The Laptop Thin SSHD 500GB isn't Seagate's first hybrid drive. Back in 2010 the Seagate Momentus XT came out, which was also a 2.5-inch disk with 8GB SSD cache. The caching algorithms were far less advanced at the time, and the Momentus XT only cached the most frequently used data and had no impact on writing. The result was that the Momentus XT wasn't much faster than normal hard disks. That shouldn't be the case with the Laptop Thin SSHD.

In this preview we'll examine whether this SSHD could be the perfect upgrade for you laptop. We'd like to thank BTO Notebooks ( for making this test possible.

This SSHD is a hard disk in the standard 2.5-inch format, suitable for laptops. It's under 7mm thin so it will fit in the thinner laptops as well. It's a SATA600 disk running at 5400rpm. That's actually slower than the 7200rpm Momentus XT drives, so apparently Seagate was confident enough in its SSD caching. It's a single platter disk, but that should be obvious. You can read the rest of Seagate Laptop Thin SSHD 500GB preview: 2.5-inch hard disk with SSD cache on