With its SandForce SF-2281 based Extreme SSD 120 GB, SanDisk doesn't reach the performance values they advertise in the specifications by
a small margin. We measured the following peaks: 507 MByte were possible when writing and 523 MByte/s were reached reading
sequentially. Still, on average the 120 GByte Extreme SSD is a
quick drive, especially compared to the other 120 Gigabyte drives available
on the market. At this point we have to
mention that 240 GByte drives in general are faster than smaller 120 GByte or
even 60 GByte drives which is because of the wear levelling algorithm that works
more efficient the bigger the drive is.
If we take a closer look at IOPS
performance SanDisk promises sustained values of 83'000 IOPS for 4k writes and
23'000 IOPS for 4k reads. During our tests we measured about 53'000 IOPS
regarding random writes. Concerning random reads you get a solid 22'000 IOPS. These values are significantly
lower then the numbers advertised by the manufacturer.
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The delivery of this drive is quite poor. We would really like to see a 2.5 inch
to 3.5 inch adaptor to install the drive properly also in cases that do not have
2.5 drive bays. Furthermore many manufacturers put a key or a CD regarding a
disk cloning software in the box. With the Extreme SSD from SanDisk there is
nothing like this.
If you should be looking for a well performing 120 GByte SSD which comes with a
Toggle NAND flash then the SanDisk Extreme SSD120 GByte will be the right
choice for you.
The SanDisk Extreme SSD 120 GB gets four out of five stars.