CrystalDiskMark is an easy-to-run and quick utility to use to gauge a drive’s performance. It measures sequential read and write performance and random read and write speeds of random 4KB, 4KB (queue depth 32) and 512KB data.
Again, the SSD 335 Series proved to be a competitive drive, matching the SSD 520 Series for sequential read and write speeds and even the 512K workload. It lost out only when it came to the more intensive 4K and 4K, 32 queue depth workloads, where we found that it had noticeably poorer write performance. Nevertheless, it’s a good showing from the mainstream drive.