A few weeks ago we posted a review on the SanDisk Extreme II 240GB capacity SSD and it turned out to be one of the stronger contenders we have seen to date, and most definitely the strongest using a Marvell controller.
We wanted to today follow that up with an analysis of that same drive, this time in the 480GB capacity, as a form of confirmation that this SSD has what it takes to stand up there with the best.
Just prior to release of the SanDisk Extreme II, the SanDisk Extreme SSD was holding its own as one of the best SSDs available and its price point was one of the lowest seen. Amazon sales of the Extreme had remained at number one for several months and the Extreme’s price point played a significant role in helping drop the pricing model of SSDs, as a whole, in the consumer industry. If you have bought an SSD in the last while, regardless of manufacture, you can thank either SanDisk or Crucial as both have held valuable roles in today’s pricing of SSDs.
The SanDisk Extreme II 6Gbps SSD is available in capacities of 120, 240 and 480GB and is a SATA 3 SSD, backwards compatible to SATA 2 systems, with a five year warranty. Performance of the Extreme II is variable, depending on capacity, and write performance drops a bit in the 120GB model to 340MB/s. Consistent in all three capacities, however, is the read performance above 550MB/s, as well as read and write IOPS above 91000 and 73000. Pricing for the Extreme II has been extremely low since its first day of release and all capacities are close to or below that golden $1/GB price point. Watch Amazon pricing here.
The exterior casing of the Extreme II SSD consists of a plastic top that is screwed into the metal base by four screws that are hidden under the white branding sticker. The PCB contains a Marvell 88SS9187 controller, Samsung 512MB DRAM cache memory and eight modules of 64GB 19nm ABL eX2 Toggle Mode NAND flash memory. As you can see with the photo above, each memory package, and that of the controller, contain a white insulator that is also attached to the aluminum base for effective heat dispersion.
In our last report, we described SanDisk’s proprietary nCache technology which adds to performance. The base of the PCB is very nondescript and contains no components worthy of mention.