IO-Data’s new SSD uses Toshiba SATA 6Gbps controller

io data ssd 1 IO Datas new SSD uses Toshiba SATA 6Gbps controller

It's easy to forget that Toshiba is still in the SSD controller market, but the company's latest model has been revealed to reside inside IO-Data's latest SSD, the SSDN-3TB which is set to launch later this month. It's taken Toshiba quite some time to launch a SATA 6Gbps controller and it looks like the company has done a pretty decent job.

It's easy to forget that Toshiba is still in the SSD controller market, but the company's latest model has been revealed to reside inside IO-Data's latest SSD, the SSDN-3TB which is set to launch later this month. It's taken Toshiba quite some time to launch a SATA 6Gbps controller and it looks like the company has done a pretty decent job.

IO-Data's new drive was put through its paces by Japanese Impress PC Watch and although they only ran a few benchmarks, the numbers are pretty good. But before we get ahead of ourselves, let's look at the rated spec. Depending on the drive capacity the new Toshiba controller which is known as the TC58NC5HJ8GSB-01 can deliver sequential performance of around 350MB/s write and 480MB/s read, or if you prefer 58k IOPS for random reads and 73k IOPS for random writes.

io data ssd 1 IO Datas new SSD uses Toshiba SATA 6Gbps controller

IO-Data has paired up the controller with Toshiba's latest generation of 24nm Toggle NAND flash and the company will offer drive sizes of 60, 120, 240 and 480GB. The SSD uses a single sided PCB and unlike previous Toshiba SSD controllers, their new SATA 6Gbps model doesn't appear to feature any local cache.

What's interesting is the fact that the 120GB model of the SSDN-3TB that was tested actually performs better than Toshiba's stated performance figures for its new SSD controller. In CrystalDiskMark 3.0.1 the drive hits sequential read speeds of 494.9MB/s and write speeds of 381.4MB/s with the standard 100MB test data. Moving up to larger test data of 1GB, the drive read speeds drops to 441.3MB/s and the write speed to 376.1MB/s, but both are still decent numbers. In AS SSD the results are similar with a sequential read speed of 444.52MB/s and a write speed of 340.53MB/s.

io data ssd 2 IO Datas new SSD uses Toshiba SATA 6Gbps controller

However, with SSD's it's the random performance that really matters and here the new Toshiba controller appears to be pretty decent with 4K performance figures of 31.15MB/s for reads and an impressive 93.69MB/s for writes in CrystalDiskMark and that's SandForce territory. It's not quite as good with longer queue depths, as here the read speed is 149.7MB/s and the write speed 234.9MB/s, quite some way off what you'd get from the average SandForce powered SATA 6Gbps SSD. The results are similar in AS SSD with a small lead in 4K, but in the 64 threaded part the Toshiba controller just can't keep up.

As to if the IO-Data SSD is using an actual Toshiba controller, or if it's yet another re-branded solution isn't clear from the review, but the performance numbers suggests that it's not a SandForce controller and the lack of local cache tells us that it's not a Marvell controller. The biggest issue in this case is pricing, as IO-Data wants 16,800 Yen (US$206/S$259) for its 120GB model, which is a pretty steep asking price for a 120GB SSD these days and even more so for one that isn't mind-bogglingly fast.

Source: Impress PC Watch

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