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| Product name | |||||
| Price | $174 to $343 at 7 stores | $229 to $310 at 9 stores | $226 to $4,233 at 8 stores | $269 to $388 at 8 stores | $434 to $699 at 13 stores |
| CNET editors' rating | 4.0 stars Excellent | 4.0 stars Excellent | 4.0 stars Excellent | 4.0 stars Excellent | 4.0 stars Excellent |
| Average user rating | 2.0 stars out of 2 reviews | 5.0 stars out of 1 review | 0 stars No reviews, write one! | 0 stars No reviews, write one! | 0 stars No reviews, write one! |
| Release date | April 02, 2011 | September 21, 2012 | April 29, 2012 | December 04, 2012 | September 20, 2012 |
| The Bottom Line | Storage-hungry users, especially tech-savvy ones, will find the Seagate Barracuda XT a great balance of storage space, backward compatibility, and speedy performance. | The Samsung 840 Pro lives up to its name: it's a top-notch solid-state drive for professionals with a price to match. | WD VelociRaptor WD1000DHTZ makes an excellent storage solution for housing a large amount of data that's frequently accessed and manipulated. | The OCZ Vector Series SSD would make a great investment for those moving on from using a hard drive as the main drive of their system. | The Samsung 840 Pro lives up to its name: it's a top-notch solid-state drive for professionals with a price to match. | Basic specs |
| Features | See What's the Same or What's different | ||||
| Packaged Quantity | 1 | 1 | 1 | 1 | 1 |
| Buffer Size | 64 MB | Info unavailable | 64 MB | Info unavailable | Info unavailable |
| Spindle Speed | 7200 rpm | Info unavailable | 10000 rpm | Info unavailable | Info unavailable |
| Dimensions (WxDxH) | 4 in x 5.8 in x 1 in | 3.9 in x 0.3 in | 4 in x 5.8 in x 1 in | 2.7 in x 3.9 in x 0.3 in | 2.7 in x 3.9 in x 0.3 in |
| Capacity | 3 TB | 256 GB | 1 TB | 256 GB | 512 GB |
| Type | Hard drive - Internal hard drive | Solid state drive - Internal hard drive | Hard drive - Internal hard drive | Solid state drive - Internal hard drive | Solid state drive - Internal hard drive |
| Microsoft Certification | Compatible with Windows 7 | Info unavailable | Info unavailable | Info unavailable | Info unavailable |
| Features | Seagate Think Green Native Command Queuing (NCQ) | TRIM support , S.M.A.R.T. Garbage Collection technology | IcePack mounting frame , S.M.A.R.T. Preemptive Wear Leveling (PWL) NoTouch ramp load technology Rotary Acceleration Feed Forward (RAFF) Advanced Format technology | TRIM support , S.M.A.R.T. Native Command Queuing (NCQ) , 28/1K bit BCH ECC Idle Time Garbage Collection | TRIM support , S.M.A.R.T. Garbage Collection technology , 256-bit AES Hardware Full Disk Encryption (FDE) |
| Interface | Info unavailable | Serial ATA-600 | Serial ATA-600 | Serial ATA-600 | Serial ATA-600 |
| Weight | 1.5 lbs | 2.4 oz | 17.6 oz | 4.1 oz | 2.2 oz |
| Product Description | Seagate Barracuda XT ST33000651AS - Hard drive - 3 TB | Samsung 840 Pro Series MZ-7PD256 - Solid state drive - 256 GB - Serial ATA-600 | WD VelociRaptor WD1000DHTZ - Hard drive - 1 TB - Serial ATA-600 | OCZ Vector Series Solid state drive - 256 GB - Serial ATA-600 | Samsung 840 Pro Series MZ-7PD512 - Solid state drive - 512 GB - Serial ATA-600 |
| NAND Flash Memory Type | Info unavailable | Info unavailable | Info unavailable | 25nm Multi-level cell (MLC) | Info unavailable |
| Manufacturer Warranty | 3 years warranty | 5 years warranty | 5 years warranty | 5 years warranty | 5 years warranty |
| Form Factor | 3.5" x 1/3H | 2.5" Ultra Slim Line | 3.5" x 1/3H | 2.5" Ultra Slim Line | 2.5" Ultra Slim Line |
| Data Transfer Rate | 600 MBps | 600 MBps | 600 MBps | Info unavailable | 600 MBps |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
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Seagate Barracuda XT (3TB) comparison
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