AnandTech Storage Bench 2011—Light Workload

Our new light workload actually has more write operations than read operations. The split is as follows: 372,630 reads and 459,709 writes. The relatively close read/write ratio does better mimic a typical light workload (although even lighter workloads would be far more read centric).

The I/O breakdown is similar to the heavy workload at small IOs, however you'll notice that there are far fewer large IO transfers:

AnandTech Storage Bench 2011—Light Workload IO Breakdown
IO Size % of Total
4KB 27%
16KB 8%
32KB 6%
64KB 5%

Light Workload 2011—Average Data Rate

As our Light suite is more read centric, the benefit of more and faster NAND is smaller. All except the 120GB Neutron perform almost equally and even the 120GB Neutron is only ~16% behind whereas in our Heavy suite it was as much as 30% slower than the larger capacities.

Light Workload 2011—Average Read Speed

Light Workload 2011—Average Write Speed

Light Workload 2011—Disk Busy Time

Light Workload 2011—Disk Busy Time (Reads)

Light Workload 2011—Disk Busy Time (Writes)

AnandTech Storage Bench 2011 Power Consumption
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  • Sabresiberian - Wednesday, December 19, 2012 - link

    Always glad to see someone step in with a different controller than the majority have, and see it perform very well. Good job Corsair!

    I have to say, the price/performance is excellent and I'm very tempted to replace the 840 Pro as the choice for my next build. That being said, what I really hope it does at this point is cause Samsung to drop the price of the 840 Pro lineup.
    Reply
  • extide - Wednesday, December 19, 2012 - link

    I wouldn't expect much of any change-up in the market as these drives have already been out for a few months. They are not brand new at this point. Reply
  • Sabresiberian - Thursday, December 20, 2012 - link

    Heh well I wasn't implying there would or even should be any kind of change-up, I'm just saying I want competition to stay alive as long as possible, and if everyone jumps onto one controller from one source the only competition point will more rapidly come down to just price.

    The differences are basically controller, NAND, and price, in today's consumer market, and frankly I'd like to see controllers in particular get a lot better. They are good at pumping out high peak numbers, but consistency and even reliability just aren't there yet, in my opinion. (I mean reliability in terms of getting a bug-free controller, not in terms of life of the SSD.)
    Reply
  • Flying Goat - Thursday, January 03, 2013 - link

    Hmmm...The Samsung 840 Pro 512GB has dropped by at least $100 in the past month. Not making any claims about the reason for that. Reply
  • Drazick - Wednesday, December 19, 2012 - link

    Hi,
    Why don't you update your Google+ Page?

    Thank You.
    Reply
  • nathanddrews - Thursday, December 20, 2012 - link

    What's Google+? Reply
  • Snotling - Thursday, December 20, 2012 - link

    google it, you'll know. Reply
  • Sabresiberian - Thursday, December 20, 2012 - link

    Google+ is an even less secure version of Facebook.

    If you like Google laying claim to every word you say, then by all means sign up for it.
    Reply
  • blanarahul - Wednesday, December 19, 2012 - link

    When are you going to review lower capacity models of 840 Pro and 840?

    Nice review though.
    Reply
  • Kristian Vättö - Thursday, December 20, 2012 - link

    I have a 128GB and 512GB 840 Pros but we are still waiting for additional 840 capacities. Reply

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