Intel X25-M SSD: Intel Delivers One of the World's Fastest Drives
by Anand Lal Shimpi on 9/8/2008 4:00:00 PM
Posted in Storage
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Final Words

At the high level, SSDs are still the key to truly solid performance and this is where the issues with the JMicron based MLC drives are really unfortunate, because it means that the most accessible SSDs on the market can actually deliver a pretty bad user experience. But if you look at what Intel's X25-M and the Samsung SLC drives can deliver, it's really quite good.

As I've mentioned before, the random write issues with JMicron JMF602 based MLC SSDs are simply unacceptable and in my opinion they make the drives unusable for use in any desktop or notebook that you actually care about. Next year we may see a JMicron controller that fixes the problem but until then, I'd consider those drives off limits.

This thing is fast, and I want one in my system...actually, two. It's the only SSD that I would actually go out, buy and stick in my desktop machine at this point. I think that's the first time I've ever said something like that in a review, but I'm absolutely convinced. I've been using SSDs in my systems for a few months now and I'm hooked.

What Intel did with the X25-M is show the world what is possible with MLC flash. You get better than SLC performance, at lower than SLC prices. Despite that, the absolute only thing that bothers me about Intel's X25-M is the price. Although Intel is totally justified in pricing the X25-M at $595, I was hoping for pricing inline with the JMicron based MLC SSDs. At $300 - $400 this would be a no brainer for any enthusiast, and honestly even at $595 it's worth considering if you have other drives for data storage.

The other complaint is obviously capacity; at 80GB you can get by with this being the only drive in a corporate notebook or even your personal notebook if you've got external storage, but in a desktop machine 80GB is a bit shallow. Thankfully with better reliability than conventional hard disks you should be able to put two of these in RAID 0, doubling capacity without any fear of reduced reliability. Then we get back to the pricing problem unfortunately.

If Intel can get capacities over 100GB at reasonable prices in the near future, I'd say that the X25-M would be the best upgrade you could possibly do to your system. I'm curious to see what pricing and availability will be like for the 160GB drives, but Intel is being pretty tight lipped about them.

The implications of the X25-M are tremendous. I mentioned before that it is the great equalizer between the notebook and desktop, you can finally have a desktop usage experience on your notebook if you've got one of these in there (or a SLC SSD). If capacities grow quickly enough, these SSDs could mean that desktops would start accepting 2.5" drives, allowing for smaller form factors. Apple is already doing this on the Mac mini, and we've seen 2.5" drives used in systems like the ASUS Eee Box, but now you don't have to give up performance.

Intel didn't start the SSD revolution but it sure did kick it into high gear. Companies like Samsung and JMicron are really going to have to step up their game if they want to compete with Intel going forward. While Intel was light on details about the tricks they implemented in their controller, it's clearly enough to completely change the way we look at MLC SSD performance. And if this is the sort of performance we can expect out of its MLC drive, I'm wondering what will happen when we look at its SLC drives.

To me this is bigger than Nehalem, but then I look at the price tag and think that Nehalem will probably be a cheaper upgrade. Intel redefined the performance of the MLC SSD, I only wish they also redefined the price...

Power Consumption & Battery Life
Intel X25-M (Kingston SSDNow M-Series) Review by Alleniv on Wednesday, August 19, 2009
Hi all,
I report this new review about X25-M, that takes in consideration a comparative with other SSDs and also with HDDs, with several benchmarks ? http://www.informaticaeasy.net/le-mi...m-da-80gb.html
Alleniv
You said this: For example, let's say you download a 2MB file to your band new, never been used SSD, which gets saved to blocks 10, 11, 12 and 13. You realize you downloaded the wrong file and delete it, then go off to download the right file. Rather than write the new file to blocks 10, 11, 12 and 13, the flash controller will write to blocks 14, 15, 16 and 17. In fact, those four blocks won't get used again until every other block on the drive has been written to once

By this i understand that a bigger capacity SSD, for instance 320 vs 160 will have more blocks and hence you will need more writes to deplete the number a write cycles the SSD was designed for. So for SSD bigger means even longer lasting. IS this TRUE ?
Bytales
Can you overclock this SSD? by lpaster on Wednesday, November 26, 2008
Can you overclock this SSD?
lpaster
Samsung's new MLC-based 256GB SSD by kevonly on Friday, November 21, 2008
I hope you do some benchmark on Samsung's new 256GB SSD. Hopefully it's as good as Intel's.
kevonly
RE: Samsung's new MLC-based 256GB SSD by kevonly on Friday, November 21, 2008
its read/write speed is 200/160 mb/s. Will it sustain that speed in a multi applications running environment??
kevonly
RE: Samsung's new MLC-based 256GB SSD by kevonly on Friday, November 21, 2008
sorry

read/write speed is 220/200 mb/s.
kevonly
Amazing by scotopicvision on Monday, November 10, 2008
The article was an amazing read, fantastic, and well done thank you.
scotopicvision
SSD Test Methodology Flawed Technically Unsound by D111 on Saturday, October 25, 2008

Legacy OS like Windows Vista, XP, and Applications like Microsoft Office 2003, 2007, etc. have built in, inherent flaws with regard to SSDs.

Specifically, optimizations of these OS for mechanical hard drives like superfetch, prefetch, etc. tend to slow down, rather than help performance and is unnecessary to speed up reads in an SSD, but slow it down with unnecessary writes of small files, which SSDs are slower than a regular hard drive.

Things like automatic drive defragmentation with Vista does nothing for SSDs except to slow them down.

Properly optimized, even low cost 2007 generation SSDs test out as equivalent to a 7200 rpm consumer grade drive, and typical SSDs made in 2008 or later tend to outperform mechanical hard drives.

The tests done here have done nothing to "tweak" the OS to remove design hindrances to SSD performance, and thus, have no validity or technical merit.

The test, as presented, would be similar to installing a 19th century steam engine on a sailing ship, and observing that it is rather slow ---- without mentioning the drag and performance hits caused by the unused sail rigging, masts, etc.

See the discussion here for a detailed discussion of SSD performance tweaks and what it takes to make them perform well with legacy OS and Applications.

http://www.ocztechnologyforum.com/forum...display.php?s=&daysprune=&f=88

D111
Fusion-IO & ioXtreme by Mocib on Thursday, October 09, 2008
Good stuff, but why isn't anyone talking about ioXtreme, the PCI-E SSD drive from Fusion-IO? It baffles me just how little talk there is about ioXtreme, and the ioDrive solution in general.
Mocib
RE: Fusion-IO & ioXtreme by Shadowmaster625 on Thursday, October 09, 2008
I think the Fusion-IO is great as a concept. But what we really need is for Intel and/or AMD to start thinking intelligently about SSDs.

AMD and Intel need to agree on a standard for an integrated SSD controller. And then create a new open standard for a Flash SSD DIMM socket.

Then I could buy a 32 or 64 GB SSD DIMM and plug it into a socket next to my RAM, and have a SUPER-FAST hard drive. Imagine a SSD DIMM that costs $50 and puts out even better numbers than the Fusion-IO! With economy of scale, it would only cost a few dollers per CPU and a few dollars more for the motherboard. But the performance would shatter the current paradigm.

The cost of the DIMMs would be low because there would be no expensive controller on the module, like there is now with flash SSDs. And that is how it should be! There is NO need for a controller on a memory module! How we ended up taking this convoluted route baffles me. It is a fatally flawed design that is always going to be bottlenecked by the SATA interface, no matter how fast it is. The SSD MUST have a direct link to the CPU in order to unleash its true performance potential.

This would increase performance so much that if VIA did this with their Nano CPU, they would have an end product that outperforms even Nehalem in real-world everyday PC usage. If you dont believe me, you need to check out the Fusion-IO. With SSD controller integration, you can have Fusion-IO level performance for dirt cheap.

If you understand what I am talking about here, and can see that this is truly the way to go with SSDs, then you need to help get the word to AMD and Intel. Whoever does it first is going to make a killing. I'd prefer it to be AMD at this point but it just needs to get done.
Shadowmaster625
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