As you likely know, while manufacturers claim impressive peak I/O performance out of the box, this performance can diminish over time. Unlike a conventional hard drive, any write operation made to an SSD is a two-step process: a data block must be erased and then written to. Obviously if the drive is new and unused there will be nothing to erase and therefore the first step can be bypassed, but this only happens once unless the drive is trimmed. Considering this, we’ll test how much performance you can expect to lose from each SSD over time. We’ll examine all drives in their clean unused state, and then run the HD Tach full benchmark several times to fill the entire drive. This simulates heavy usage and clearly indicates how performance will be affected after normal long-term use. All drives in this roundup support the Windows 7 TRIM function, which is meant to counteract these negative effects.
Test System Specs
Intel Core i7-2600K (LGA1155) x2 4GB DDR3-1600 G.Skill (CAS 8-8-8-20) Asus P8P67 Deluxe (Intel P67) OCZ ZX Series (1250w) Hitachi Deskstar 7K1000.C 1TB (3Gb/s) OCZ Vertex 4 256GB (6Gb/s) OCZ Agility 4 256GB (6Gb/s) OCZ Octane 512GB (6Gb/s) Kingston HyperX 3K 240GB (6Gb/s) Kingston HyperX 240GB (6Gb/s) Kingston SSDNow V+200 240GB (6Gb/s) Kingston SSDNow V+100 256GB Patriot Torqx 2 128GB (3Gb/s) Patriot Pyro 120GB (6Gb/s) Crucial m4 256GB (6Gb/s) Crucial v4 256GB (3Gb/s) Crucial RealSSD C300 256GB (6Gb/s) Samsung 470 Series 256GB (3Gb/s) Intel SSD 320 Series 300GB (3Gb/s) Intel SSD 510 Series 120GB (6Gb/s) Samsung 830 Series 512GB (6Gb/s) Samsung 470 Series 256GB (3Gb/s) Asus GeForce GTX 580 (1536MB)
Software
Microsoft Windows 7 Ultimate SP1 (64-bit) Nvidia Forceware 301.34
