TRIM Performance

In practice, SandForce based drives running a mainstream client workload do very well and typically boast low average write amplification. However if subjected to a workload composed entirely of incompressible writes (e.g. tons of compressed images, videos and music) you can back the controller into a corner.

To simulate this I filled the drive with incompressible data, ran a 4KB (100% LBA space, QD32) random write test with incompressible data for an hour and a half, and then ran AS-SSD (another incompressible data test) to see how low performance could get:

Kingston HyperX 3K - Resiliency - AS SSD Sequential Write Speed - 6Gbps
  Clean After 1.5hr Torture After TRIM
Kingston HyperX 3K 240GB 312.4 MB/s 103.9 MB/s 245.8 MB/s

I usually run this test for only 20 minutes but after seeing an unusually resilient performance by the 240GB drives I decided to extend the test period to a full 90 minutes. Performance does drop pretty far at that point, down to 103MB/s. TRIMing the drive does restore some performance but not all. If you have a workload that uses a lot of incompressible data (e.g. JPGs, H.264 videos, software encrypted data, highly random datasets etc...) then SandForce just isn't for you.

Power Consumption

SandForce boasts fairly low power consumption, particularly at idle. Even with incompressible data the HyperX 3K's power draw is competitive:

Drive Power Consumption - Idle

Drive Power Consumption - Sequential Write

Drive Power Consumption - Random Write


AnandTech Storage Bench 2011 - Light Workload


View All Comments

  • NetCommercial - Thursday, November 22, 2012 - link

    Long time reader just signed up to comment as it appears you actually read them and do take into consideration the comment itself.
    First off thank you for the benchmarks and simplifying the results the best you can. I enjoyed the article showing the Kingston X that is on sale at Newegg for BFriday and was considering it.
    After reading I will pass. I am a video editor. I think a good percentage of us are in some way using our computers for more then gaming. After all the rigs people are putting together are ridiculous for gaming. I play games online and get kicked all the time for being too 'fast'. That is with a dinosaur of a pre-made Dell bucket.
    With that being stated I would like to see an area where you guys do shoot outs with the same sized/priced equipment doing renders with decent sized files. For instance the review did on the King x was terrific however where was Plextor @ ? It is in the price range and does compete with the Sammy 830/ 840pro IMO... This article just started to brief on that scenario.
    Again Thank you for your help, advice and time you put into these articles. You are one of my resource hubs of trusted information.
  • ickibar1234 - Monday, December 02, 2013 - link

    The Desktop IOMeter 4K random read of only 40MB/s is kind of sad. I'm sure that is with a queue depth of 1 but still. Reply
  • Dahaka - Monday, December 14, 2015 - link


    Almost 4 years since this review and is an awesome article, that's why i come here to post some doubts about this SSD.

    Anyone can tell me (approximately) how good or bad will perform this SSD into a workload enviroment?, like using an ERP (like Microsoft Dynamics plus Roadnet)?.
    The OS and programs will be virtualized.

    If anyone needs more specifications about the server i can give more details.
  • remax - Sunday, June 19, 2016 - link

    Hyper X is the way to go! But why listen to me - look at my SSD data - speaks for itself:

    KINGSTON SH103S3240G

    Revision: 10
    Attributes List
    1: (SSD Raw Read Error Rate) Normalized Rate: 120 Sectors Read: 0 Read Errors: 0
    5: (SSD Retired Block Count) Spare blocks remaining 100% Retired Block 0
    9: (SSD Power-On Hours) Value 84 Total 14084 hrs 47 mins
    12: (SSD Power Cycle Count) Power Cycle Life Remaining 99% Number of power cycles 1334
    171: (SSD Program Fail Count) Program Error Count 0
    172: (SSD Erase Fail Count) Erase Error Count 0
    174: (SSD Unexpected power loss count) Unexpected power loss Count 259
    177: (Wear Range Delta) Wear Range Delta 2%
    181: (Program Fail Count) Program Error Count 0
    182: (Erase Fail Count) Erase Error Count 0
    187: (SSD Reported Uncorrectable Errors) Normalized Value 100 lifetime URAISE Errors 0
    194: (SSD Temperature Monitoring) Normalized temp 36 Current 36 High 81 Low 236
    195: (SSD ECC On-the-fly Count) Normalized Value 120 Sectors Read 0 UECC Count 0
    196: (SSD Reallocation Event Count) Normalized Value 100 Reallocation Event Count 0
    201: (SSD Uncorrectable Soft Read Error Rate)Normalized Value 120 Sectors Read 0 Uncorrectable Soft Error Count 0
    204: (SSD Soft ECC Correction Rate (RAISE) Normalized Value 120 Sectors Read 0 Soft ECC Correction Count 0
    230: (SSD Life Curve Status) Normalized Value 100
    231: (SSD Life Left) Life Remaining 100%
    233: (SSD Internal Reserved) 13615
    234: (SSD Internal Reserved) 15250
    241: (SSD Lifetime writes from host) lifetime writes 15250 GB
    242: (SSD Lifetime reads from host) lifetime reads 9061 GB

    Any questions?

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