Western Digital SiliconEdge Blue Review: WD Enters the Consumer SSD Market
by Anand Lal Shimpi on March 3, 2010 12:00 AM EST- Posted in
- Storage
Random Read/Write Speed
This test reads/writes 4KB in a completely random pattern over an 8GB space of the drive to simulate the sort of random access that you'd see on an OS drive (even this is more stressful than a normal desktop user would see). I perform three concurrent IOs and run the test for 3 minutes. The results reported are in average MB/s over the entire time.
I've had to run this test two different ways thanks to the way the newer controllers handle write alignment. Without a manually aligned partition, Windows XP executes writes on sector aligned boundaries while most modern OSes write with 4K alignment. Some controllers take this into account when mapping LBAs to page addresses, which generates additional overhead but makes for relatively similar performance regardless of OS/partition alignment. Other controllers skip the management overhead and just perform worse under Windows XP without partition alignment as file system writes are not automatically aligned with the SSD's internal pages.
First up is my traditional 4KB random write test, each write here is aligned to 512-byte sectors, similar to how Windows XP might write data to a drive:
Random write performance is at the lower end of the Indilinx spectrum, but definitely competitive in that space. Obviously even as a slower SSD the SiliconEdge Blue is an order of magnitude faster than even the fastest desktop hard drives.
The chart below shows that the SiliconEdge Blue performs the same regardless of whether you align transfers to 4KB boundaries or not:
Random read performance is the only area where Western Digital's SSD actually noticeably falls behind the Indilinx drives:
At 21.8MB/s it's much faster than a hard drive, but a good ~15MB/s slower than an Indilinx drive. It is in the same class of performance as the Toshiba based SSDNow V+ and the Samsung RBB based drives.
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Griswold - Thursday, March 4, 2010 - link
No, numbnuts. He was just being careful because depending on what performance figure you look at, they're simply faster and in other cases thes dance circles around a spindle drive. A decent or good SSD is always much faster than common desktop HDDs. But not everyone cares about that.DukeN - Wednesday, March 3, 2010 - link
At this point the Intel reliability is greater IMHO as it has already gone through testing by hundreds of thousands of users, if not millions.And higher for mediocre performance is just not going to cut it. Maybe in six months when etailers are forced to sell them at 50% off to clear their inventory these will have an impact on pricing for most models.
mrsushi - Thursday, March 4, 2010 - link
Would be interesting to know how many SSDs has Intel and co. sold.Kingston is not my favourite RAM maker, but their SSDs surely look a lot more solid than this WD. WD should wake up and put 5th gear in doing something more original.
and about SSDs ... I would say that in less than 10 Years, RAM will be dead and buried. All PCs will work directly from SSDs. Its nearly there, start your OS directly where you left it yesterday when you went to bed...
semo - Wednesday, March 3, 2010 - link
at 50% they still wouldn't be competing with other similar offerings. The MSRP needs to be halved before getting a clearance price... that would be a decent deal today but it won't happen today. So not much point to the consumer from these drives. Decent test bed for the lazy WD I guesspullmyfoot - Wednesday, March 3, 2010 - link
maybe not a million yetsemo - Wednesday, March 3, 2010 - link
... and does anyone know the release date for europe?Conscript - Wednesday, March 3, 2010 - link
when I first started reading this, I thought the 256GB was $529, and I was still contemplating if it was worth it over the 160GB Intel at $429.... then I came ot the end and see that that was the 128GB price and the 256GB is $999? No frakking way WD, good luck selling even one of these...coolkev99 - Wednesday, March 3, 2010 - link
Nice to see WD enter the SSD market. I'd take the plunge on this if they can get the price a bit lower. That's what needs to happen for these drive to truely go mainstream, and it's the only thing holding me back.vol7ron - Wednesday, March 3, 2010 - link
Why would it be the only thing holding you back? The Randoms on these drives are horrific. I'd rather wait for the new onset of SSDs that are going to put the Vertex2Pro and Intel G2s to shame.coolkev99 - Thursday, March 4, 2010 - link
Did you look at overall performace (PCMark Vantage) even with this "horrific" performace it's almost 50% faster than one of the fastest mechanical drives out there. I HATE hard drive slowness on my systems, chugging just load load an application. It's 2010 for gods sake and were still using more or less 1960's tech.