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Detailed editors' rating
- Reviewed on: 10/08/2008
Intel's X-25M solid-state hard drive represents a major leap forward for the solid-state drive category. While we've heard about the benefits of solid-state hard drives for years--faster access and boot times, improved battery life--Intel's drive raises expectations for the category as a whole. You will most definitely have to pay more for it. Intel's official pricing is $595 per 1,000 units for our 80GB model, and actual pricing for individual units is more like $700 at online retailers. That gives this drive the worst gigabyte-to-dollar ratio among competing products. But if improving performance is your main concern, the Intel X-25M is the clear winner, and we recommend it to those of you for whom price is unimportant..
Instead of storing data on traditional hard disks, solid-state drives use large blocks of flash-based NAND memory, which means these drives have no moving parts to malfunction over time. With no physical platter to spin like traditional hard drives, SSDs are faster at accessing data, and they also use less power and generate less heat, of particular benefit to laptops.
At the time of this review, Intel only offers one 80GB capacity drive, but it's available in 2.5-inch and 1.8-inch sizes for compatibility with a variety of modern desktops and laptops. The Serial ATA data and power inputs on the Intel drive mirror those of other SSDs as well as traditional hard drives, so while you may need drive rails to adapt it to a desktop chassis, the physical cable connections remain unchanged.
As exciting as we find SSDs, and in particular Intel's new model, their limitations are not insignificant to the average consumer. As you can see from our chart below, the price-per-gigabyte of a typical 160GB desktop hard drive is almost 10 times less than that of previous generation SSD drives, and almost 25 times that of Intel's new model. That makes the value proposition for Intel's new SSD, from a pure-gigabytes-per-dollar perspective, very hard to stomach.
| Model | Capacity | Est. street price | Cost per GB |
| Intel X-25M | 80GB | $700 | $8.75 |
| Super Talent MasterDrive MX | 120GB | $435 | $3.63 |
| OCZ Core Series | 128GB | $434 | $3.39 |
| Patriot Warp V.2 | 128GB | $440 | $3.44 |
| Western Digital Caviar | 160GB | $60 | 38 cents |
| Seagate Momentus | 200GB | $80 | 30 cents |
You should also keep in mind that because of the nature of flash memory technology, solid-state hard drives have a relatively well-defined time before failure. An article by Robert Hallock at Icrontic.com called "The Hows and Whys of SSDs" provides a more in-depth, but also accessible description of the issue. The gist is that you get about 100,000 read-write cycles before the memory will wear out. As Hallock puts it, "While 100,000 cycles seems slight, it's more than 100GiB of new information written to the disk every day for five years before approaching failure." Perhaps your drive usage is more demanding, and if so, you'd be wise to weigh it carefully before springing for Intel's expensive new drive.
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