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The first test runs the database pattern - 8KB transfers, 67 per cent read, 33 per cent write ratio, and 100 per cent random accesses - with a queue depth of two. A low QD intimates a very light load.
The 256GB RealSSD C300 scales better as the queue depth is increased, but an IOPS rating of 8,300 is decent for a sub-£120 drive.
Changing profiles, using a low queue depth shows no differences between all SSDs other than the SandForce SF-1200-powered F120 from Corsair.
Adding load by increasing users shows that the 64GB can still deliver premium performance.
Here's a metric rolled out by nearly all SSD providers. The IOPS rate for writing random-located 4K files often separates the mainstream SSDs from the premium bunch. We know the write performance of the 64GB C300 won't be stellar by the 256GB's standards, going by degree of parallelism present in the bigger-capacity drive's chips, but the 64GB still does pretty well when evaluated by aligning I/Os to a 4K sector boundary.
