Benchmarks: CrystalDiskMark 3.0
CrystalDiskMark confirms that the SanDisk Extreme II 240GB is able to sustain high-speed read performance with a transfer rate of 517.7MB/s, faster than virtually every other SSD tested.
CrystalDiskMark also confirms strong write performance for the newcomer, putting it roughly on par with the OCZ Vector and Vertex 450 SSDs.
The Extreme II's random 512K read performance is surprisingly weak with a throughput of just 272.3MB/s, whereas most modem SSDs have no problem breaking 400MB/s.
The random 512K write performance of SanDisk's new drive is considerably better than its read performance as it managed 440.5MB/s or 9% slower than the fastest SSD tested, the OCZ Vector.
The drive's random 4K-QD32 performance is also quite weak compared to the Vector, Vertex 450 and even the 840 Pro, but with a throughput of 258.1MB/s, it's not that slow, despite falling 33% short of the Vector.
CrystalDiskMark's random 4K-QD32 write performance was similar to the read results above, though the Extreme II fared a little better this time with 253.5MB/s, besting the Vector 256GB and 840 Pro 512GB.
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