Prices and New Competitors

It's been a while since I've published on the SSD landscape. Not much has changed. SandForce's popularity has skyrocketed, easily making it the target to beat, while we patiently await Intel's 3rd generation SSDs. Once virtually an OCZ-only supplier, nearly everyone has a SandForce based drive these days. Capacities have also changed. While the original drives allocated nearly 30% of their NAND to spare area, newer extended versions have since appeared that drop the % of spare area down to 12 - 22% depending on the SKU (40/80/160GB drives allocate 22% while 60/120/240 drives allocate 12%). The performance impact of the reduced spare area is nonexistent as we've proved in the past.

Indilinx is still around but undesirable at this point. Performance is no longer competitive and write amplification is much higher than what you get from SandForce at the same cost. Crucial's RealSSD C300 is still trucking, however you do pay a premium over SandForce. Whether or not the premium is justified depends on your workload.

SSD Price Comparison - November 11, 2010
SSD NAND Capacity User Capacity Price Cost per GB of NAND
Corsair Force F40 40GB 48GB 37.3GB $124.99 $2.603
Corsair Force F120 120GB 128GB 111.8GB $229.99 $1.797
Corsair Nova V128 128GB 128GB 119.2GB $219.99 $1.719
Crucial RealSSD C300 64GB 64GB 59.6GB $134.99 $2.109
Crucial RealSSD C300 128GB 128GB 119.2GB $269.99 $2.109
Intel X25-M G2 160GB 160GB 149.0GB $409.00 $2.556
Intel X25-V 40GB 40GB 37.3GB $94.99 $2.375
Kingston SSDNow V Series 30GB 30GB 27.9GB $82.99 $2.766
Kingston SSDNow V Series 128GB 128GB 119.2GB $224.99 $1.758
Kingston SSDNow V+ Series 128GB 128GB 119.2GB $277.00 $2.164
Kingston SSDNow V+ 100 128GB 128GB 119.2GB $278.99 $2.180
OCZ Agility 2 120GB 128GB 111.8GB $229.99 $1.797
OCZ Vertex 2 120GB 128GB 111.8GB $234.99 $1.836
Patriot Inferno 60GB 64GB 55.9GB $149.00 $2.328
Western Digital SiliconEdge Blue 128GB 119.2GB $214.99 $1.680

We broke the $2/GB barrier a while ago. Prices continue to fall as NAND manufacturers transistion to 2xnm processes, the existing 3xnm supplies become cheaper as a result. Surprisingly enough, the most affordable drives actually come from companies who don't own NAND foundries. SandForce's partners who have to pay a big chunk of their margins to SandForce as well as the NAND vendor are actually delivering the best value in SSDs. Kingston and Western Digital also deliver a great value. Not Crucial/Micron and not Intel, which is not only disappointing but inexcusable. These companies actually own the fabs where the NAND is made and in the case of Intel, they actually produce the controller itself.

Within the SandForce camp prices seem pretty consistent. I grabbed data from three different SF partners: Corsair, OCZ and Patriot. At 128GB of NAND both Corsair and OCZ are competitive on pricing. As you look at the smaller capacity drives however, cost per GB goes up dramatically. A 40GB Corsair Force will cost you 44.8% more per GB than a 120GB drive. The same is true when you look at the 60GB Patriot Inferno at $2.328 per GB.

If you're trying to keep total cost down, the best bang for your buck from a capacity standpoint is the 64GB Crucial RealSSD C300. It's more expensive per GB than the larger SandForce drives, but at $134.99 it's a cheap way to get into a decent SSD.

The new Kingston SSDNow V+ 100 is actually more expensive than the Crucial drives from a cost-per-GB standpoint. Traditionally the V series has been the value line while the V+ series have been Kingston's more performance oriented SSDs. In the past however, the performance oriented V+ never seemed to have the performance to back up its price. Perhaps the V+ 100 can change that.

The Test

CPU Intel Core i7 965 running at 3.2GHz (Turbo & EIST Disabled)
Motherboard: Intel DX58SO (Intel X58)
Chipset: Intel X58 + Marvell SATA 6Gbps PCIe
Chipset Drivers: Intel 9.1.1.1015 + Intel IMSM 8.9
Memory: Qimonda DDR3-1333 4 x 1GB (7-7-7-20)
Video Card: eVGA GeForce GTX 285
Video Drivers: NVIDIA ForceWare 190.38 64-bit
Desktop Resolution: 1920 x 1200
OS: Windows 7 x64
Introduction Random Read/Write Speed
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  • DanNeely - Thursday, November 11, 2010 - link

    The 2xnm lifetimes will be shorter. The flash lifetime is a function of feature size, so as processes shrink lifetime will as well. At the same time, it's only likely to be a concern if you're doing very IO intensive activities. My 128GB Indilinx drive is at 96% after a year in my main desktop. At this rate I'll be nowhere near the maximum write limit when the flash dies of old age in another 4-9 years even if I keep it as my main drive the whole time which is doubtful.

    If scaling is linear with feature area, as the 50% drop in life-cycles from 50 to 34 nm implies, 22nm 2 level flash will last about 2500 write cycles. This still will probably be long enough not to matter. 14nm flash and beyond might not be unless they switch to SLC for consumer SSDs, and only use MLC for memory cards and thumb drives. With 10x the allowed number of write cycles SLC flash should remain good for several additional process shrinks.

    OTOH that might be a moot point because the power levels needed to write flash doesn't drop with each process, and unless something changes flash is expected to hit a will in the teens because the wires on the chip won't be able to carry the load without melting.
  • Iketh - Thursday, November 11, 2010 - link

    Anand, couldn't you just continue running your random write test 24/7 until it falls dead, or is this not feasible?

    Maybe it's not feasible with the Kingston drive because the random write performance is too slow? Which could bring up speculation that it's intentionally handicapped so this type of test is avoided?
  • Skiprudder - Thursday, November 11, 2010 - link

    Hello Anand,

    Really interesting article as usual. I had no idea that there was such a gulf between various Sandforce controllers. There was one line however that perplexed me, "The V+ 100‘s sequential read speed is excellent, just a hair above the top drives from Intel and Crucial. There’s not much room for improvement here unless you go to a 6Gbps interface."

    Why didn't you use a Sata 6 controller? I think that most of us buying boards today will be looking at Sata 6 since so many today's current SSDs clearly outstrip Sata 3, to say nothing of the upcoming 500MB/s and better drives coming down the pipeline. I'm sure you have a good reason, and I know there has been some weird controller issues with AMD I believe, but I'm very curious! Thank you.
  • Casper42 - Thursday, November 11, 2010 - link

    Just saw this on Gizmodo
    http://slickdeals.net/forums/showthread.php?t=2365...

    Puts it at around $1.60/GB and if you skip past the synthetic benchmarks and look at AT Storage Bench, its a pretty formidable drive. Makes me a little sad I spent more than this on my 160 X25M G2 a while back.
  • BoboGO - Thursday, November 11, 2010 - link

    The true cost vs. useability (usable nand) price breakdowns are as follows... I think... :)
    SSD Price Comparison - November 11, 2010
    SSD Useability % Price $/GB of USEABLE NAND
    Western Digital SiliconEdge Blue 93.13% $214.99 $1.80
    Corsair Nova V128 128GB 93.13% $219.99 $1.85
    Kingston SSDNow V Series 128GB 93.13% $224.99 $1.89
    Corsair Force F120 120GB 87.34% $229.99 $2.06
    OCZ Agility 2 120GB 87.34% $229.99 $2.06
    OCZ Vertex 2 120GB 87.34% $234.99 $2.10
    Crucial RealSSD C300 64GB 93.13% $134.99 $2.26
    Crucial RealSSD C300 128GB 93.13% $269.99 $2.27
    Kingston SSDNow V+ Series 128GB 93.13% $277.00 $2.32
    Kingston SSDNow V+ 100 128GB 93.13% $278.99 $2.34
    Intel X25-V 40GB 93.25% $ 94.99 $2.55
    Patriot Inferno 60GB 87.34% $149.00 $2.67
    Intel X25-M G2 160GB 93.13% $409.00 $2.74
    Kingston SSDNow V Series 30GB 93.00% $ 82.99 $2.97
    Corsair Force F40 40GB 77.71% $124.99 $3.35
  • SeetheSeer - Thursday, November 11, 2010 - link

    Brilliant...just needs controller info added. I think I'll do some searching later tonight if I have time.

    Is total capacity listed in GB (10^9) or GiB(2^30)? What about usable capacity? I wish people paid more attention to this, especially in area such as this were flash storage (typically in GiB) is being used for a drive (typically in GB).
  • SeetheSeer - Thursday, November 11, 2010 - link

    Anand,
    Do you think a short description of which controller each drive uses could be added to the table on page 2? It seems to me that it would be much more instructive to sort the drives based on this, rather than the often rebadged brand.
  • Out of Box Experience - Sunday, November 14, 2010 - link

    How about this info when comparing SSD's? >

    1. Is it truly Plug and Play on any OS?

    2. Does it have Alignment Agnostic Controllers?

    3. Does it handle incompressible Data really well under XP?

    Since the majority of computers still run XP, this information is the most valuable to the most people
  • snakyjake - Thursday, November 11, 2010 - link

    There's a lot of stats for the drives, however I'm not any closer in choosing a drive.

    I have 3 systems:
    1. Windows 7. This system is mostly lots of opened web browsers hogging memory, email, maybe a Word document, video encoding, and reference software (i.e. encyclopedia). I assume the browser is caching to the drive, same with the virtual memory and other background apps. I don't turn the machine off, so boot time is not important. For video encoding, I'd like to keep the data on a HDD since it is a lot of storage that SDD's are not affordable at storing, and it is most likely CPU bound.
    2. Media Center. Want a SDD for the main drive (OS and apps), but will use a larger/slower drive for the media storage. Need something low heat. This is what I really want a SDD for.
    3. Linux. Mostly emailing and web browsing. All the apps I use are cloud apps.

    Obviously the fastest drive would be the one I want if money is no object. But I want to know how much faster my experience is going to be for how much more money? My goal is a snappy system and less time waiting around. I want to know what I'd sacrifice by getting a "value" drive versus the higher quality.

    Also, MTBF is important. I hate losing data! Hope the drives have SMART or some other methods of warnings.

    Thanks,
    Jake
  • Out of Box Experience - Thursday, November 11, 2010 - link

    If all you want to do is boot up quickly and load your apps really fast, then a sandforce drive is perfect for you

    If you want to manipulate data already on the drive or copy & paste to the same drive, then you are much better off with a 7200RPM desktop drive as far as I can tell

    Anyone wanting to spend their time doing actual work instead of constantly tweaking their SSD to get synthetic benchmarks that have little bearing on real world results should avoid sandforce based drives like the vertex 2

    Please read my other posts in this thread for more info

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