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Intel 510 has lowered IOPS spec ??

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February 19, 2011 6:03:27 PM


Did anyone notice that the IOPS for the new Intel 510 are down from the X25-M model ??

The 510 is listing up to 20,000 IOPS while the 80GB X25-M is listing 35,000 IOPS.

Is this is the case, this hints that the 510 might be optimized for faster "sequential" reads/writes
at the expense of random 4k reads?

If this is true (and I hope it is not) the older X-25M would be a faster OS drive ??
a b å Intel
a c 283 G Storage
February 19, 2011 8:50:22 PM

That's interesting. What web page is the source of your information. I was at the Intel web site earlier today and Intel still does not have any info about the 510.
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a b å Intel
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February 20, 2011 6:14:37 AM

Here's what Intel actually actually shows in the X18-M Mainstream and X25-M Mainstream specification chart on their web site that you linked to:

•Random 4KB Reads: up to 35,000 IOPS
•up to 6,600 IOPS (80GB drive)
•up to 8,600 IOPS (120GB drive)
•up to 8,600 IOPS (160GB drive)

I would consider the "up to 35,000 IOPS" to be extremely optimistic advertising. Here is a link to a web page with several IOPS charts from a technical review of the 80Gb X25-M published by Tom's Hardware:

http://www.tomshardware.com/reviews/Intel-x25-m-SSD,201...

Here is a link to a follow-up published by Tom's Hardware:

http://www.tomshardware.com/reviews/ssd-performance-pow...

Storagereview.com measured the IOPS of the 160Gb X25-M. They used what they call a "productivity scenario" It is a drive performance test under normal daily activity for typical users with a lot of random activity. The X25M maxed out at 4,070.50 IOPS! Here is a link to the review:

http://www.storagereview.com/intel_x25-m_ssd_review

As of this moment Intel has not published official technical specifications for the new 510 ssd's. No technical reviews have been published. I expect to see both on March 1st.
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February 20, 2011 3:24:43 PM

I see your point. 35,000 IOPS seems like a vast exaggeration given the benchmarks.
I was just going off the reported IOPS from intel and MaxPC and it struck me as odd.

I am in a real quandary between getting a 80GB X25-M or the new 120GB 510.
The 80GB is $180 from newegg and may drop to $150 after the 510 comes out.
The 510 is supposed to retail at $300 so I'm wondering if its worth $150 extra
since I only need 50GB of it for an OS boot drive. I will keep all my data on
internal 2TB drives..


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Best solution

a b å Intel
a c 283 G Storage
February 20, 2011 5:26:09 PM

I did a little research this morning. Those large IOPS numbers can be ignored by the typical pc user. The manufacturers have a tendency to publish unrealistic numbers. The large number is a theoretical maximum based on a benchmark of the manufacturers choosing. Not all manufacturers use the same benchmark. The benchmarks are synthetic and do not reflect real world use. What counts is what happens when a pc is running real software, applications, and games. Actual real world use and testing reveals that typical users will not need anywhere near those large numbers.

The Intel 510 series ssd's will be relased on Tuesday, March 1st. I am sure there will be technical reviews published immediately. I am going to wait. I want to read the technical reviews before making any decision. The 510's are still Generation 2 (G2) ssd's using the well established 34nm MLC Flash instead of the new 25nm MLC Flash. The 510 should probably be considered the new and improved version of the existing X25-M.

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February 20, 2011 6:53:31 PM

Best answer selected by Tom55116.
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February 20, 2011 6:57:52 PM

Well with advertised 470MB reads on the 510, I am more than a little curious as to if the Random 4K reads are a 2X improvement as well.

If the 510 pulls off Windows Defender and Application Loading scores that are 2x the X25-M, I will pony up and get the 510. If it is only
15% faster on "real life" benchmarks than I will get the X25-M and be done with it..

Then again.. The 510 will probably drop from $300 to $250 after its out for 1 month.. Decisions Decisions...

JohnnyLucky: Please post back what you decide on after March 1st...
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