Corsair Force GS 240GB: SandForce with Toggle-Mode NAND

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Synthetic Test Results

Though our timed benchmark tests do a fair job of simulating performance in real world situations, it doesn't tell the whole story. Synthetic tests like HD Tune and CrystalDiskMark help fill the gap. Note: a full format was conducted before running these tests.

HD Tune's main benchmark tests the sequential read/write speed of the drive in question throughout its range but it's typically more relevant for hard drives as they tend to slow down toward the end of their spans. Compared to the SX910, the Corsair drive had a small advantage in average read speed but a noticeable disadvantage in write speed. Access times for the Force GS were 38% lower though.

Using a block size of 512K on a random data set, the Force GS dominated the SX910 especially in write speeds, enjoying a ~100 MB/s advantage in both sequential and random operation. With highly compressible data, the results evened out, coming close to 500 MB/s in both random and sequential reads and writes.

With smaller 4K blocks of random data, the Force GS dominated in the SX910 particularly with a queue-depth setting of 32 (mimicking a server/multi-user load) in both reads and writes. Naturally the Force GS improved with a heavily compressible data set but the difference was quite mild. The SX910 on the otherhand exploded with far superior write speeds.

Energy Efficiency

The Corsair Force GS 240GB uses about the same amount of power as the ADATA SX910 128GB and slightly more than the WD Scorpio Blue 500GB, a single-platter 5400 RPM notebook hard drive. Installing it in a laptop will only really improve battery life if a 7200 RPM hard drive is being swapped out.

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