Testing SSDs is tricky at the best of times, what with the delta between box-fresh and well-used performance. But the OCZ IBIS HSDL 240GB presents some unique problems.

It's an unknown and unproven storage interface, but like any drive, the best way to test it is to simulate real-world usage as closely as possible. We therefore install a full operating system and fill the drive to the brim with data and delete it a few times before testing.

We also gave the IBIS a second run through our suite following two hours of idle operation to allow the drive to self-heal. However, the results on the second run were little changed.

Size

Formatted capacity – Bytes, bigger is better
OCZ IBIS HSDL 240GB: 223GB
Samsung SSD 470 Series 256GB: 238GB
Kingston SSDNow V+100 256GB: 238GB

Synthetic drive performance

ATTO Sequential read – MBs/second, bigger is better
OCZ IBIS HSDL 240GB: 834MB/s
Samsung SSD 470 Series 256GB: 267MB/s
Kingston SSDNow V+100 256GB: 207MB/s

ATTO Sequential write – MBs/second, bigger is better
OCZ IBIS HSDL 240GB: 700MB/s
Samsung SSD 470 Series 256GB: 261MB/s
Kingston SSDNow V+100 256GB: 189MB/s

HDTach Burst rate – MBs/second, bigger is better
OCZ IBIS HSDL 240GB: 184MB/s
Samsung SSD 470 Series 256GB: 216MB/s
Kingston SSDNow V+100 256GB: 193MB/s

AS SSD 4k random reads – MBs/second, bigger is better
OCZ IBIS HSDL 240GB: 24.75MB/s
Samsung SSD 470 Series 256GB: 11.89MB/s
Kingston SSDNow V+100 256GB: 12.76MB/s

AS SSD 4k random writes – MBs/second, bigger is better
OCZ IBIS HSDL 240GB: 53.05MB/s
Samsung SSD 470 Series 256GB: 34.14MB/s
Kingston SSDNow V+100 256GB: 34.82MB/s

AS SSD 4k 64-thread random reads – MBs/second, bigger is better
OCZ IBIS HSDL 240GB: 417.94MB/s
Samsung SSD 470 Series 256GB: 117.56MB/s
Kingston SSDNow V+100 256GB: 16.30MB/s

AS SSD 4k 64-thread random writes – MBs/second, bigger is better
OCZ IBIS HSDL 240GB: 289.38MB/s
Samsung SSD 470 Series 256GB: 42.35MB/s
Kingston SSDNow V+100 256GB: 35.39MB/s

Application performance

File decompression – Time taken, lower is better
OCZ IBIS HSDL 240GB: 29 seconds
Samsung SSD 470 Series 256GB: 32 seconds
Kingston SSDNow V+100 256GB: 32 seconds

File transfer performance

Copy 4.5GB file – Time taken, lower is better
OCZ IBIS HSDL 240GB: 25 seconds
Samsung SSD 470 Series 256GB: 43 seconds
Kingston SSDNow V+100 256GB: 1 minute 2 seconds