TRIM Performance

SandForce has always had trouble with TRIM. SandForce's approach of compressing data on the fly definitely complicates things and I believe it's at least partially the reason why TRIM behaves the way it does in SandForce based SSDs. Even though TRIM doesn't work perfectly in any SandForce SSD, there are differences between drives and some do better than others.

As usual, I took a 240GB V300, secure erased it, filled it with incompressible sequential data and then tortured the drive with incompressible 4KB random writes (QD=32, LBA space 100%) for 60 minutes. I then ran AS-SSD after the torture to get dirty-state performance. Finally I TRIM'ed the drive and reran AS-SSD.

Kingston SSDNow V300 Resiliency - AS-SSD
  Clean After Torture After TRIM
Kingston SSDNow V300 240GB 278.2MB/s 204.7MB/s 257.6MB/s

And the issue still persists. For the most part, this isn't a big issue because the majority of users won't store just incompressible data in their SSD (e.g. Windows is very compressible) but if you know you'll be storing lots of incompressible data (H.264 videos, MP3s or encrypted data), then going with something non-SandForce is a better option. 

Power Consumption

In terms of power consumption, the V300 does pretty well. It doesn't break any records but for example Corsair's Force GS draws more power in all of our tests. The utilization of smaller process node NAND (19nm versus 24nm) does have some impact but I wouldn't be surprised if Kingston's customization also has something to do with the lower power draw.

 

Drive Power Consumption - Idle

Drive Power Consumption - Sequential Write

Drive Power Consumption - Random Write

AnandTech Storage Bench 2011 - Light Workload Final Words
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  • blackmagnum - Tuesday, April 30, 2013 - link

    Kingston have the brand image to succeed in this market but their product lack the unique selling point. They are just commodities like their ram sticks. Reply
  • Kristian Vättö - Tuesday, April 30, 2013 - link

    Which is exactly the point I was trying to raise. Kingston has a decent image and their distribution system is broad but their products are not unique. They shouldn't have a problem surviving in the market but they won't be able to grab any major marketshare either. Reply
  • UltraTech79 - Tuesday, April 30, 2013 - link

    I don't think their goal is to grab major market share. Its to maintain and secure their current market share. Reply
  • Diagrafeas - Tuesday, April 30, 2013 - link

    Which firmware did the drives have?
    I bought two 120GB ones a week apart.
    The first has 505 and the second 506.
    The 506 is way slower...even at booting Windows.
    I'll post some numbers later...
    Reply
  • Kristian Vättö - Tuesday, April 30, 2013 - link

    The 120GB I have is 505. I don't have the 240GB anymore but I'm pretty confident it's 505 too as I received it a couple of months ago so it's not exactly new. Reply
  • Diagrafeas - Thursday, May 02, 2013 - link

    Both are on SATA 2
    AS SSD Benchmark Scores 505-506(Read,Write)
    Seq256-175 , 158-133
    4K 14-11 , 45-26
    4K-64
    Reply
  • Diagrafeas - Thursday, May 02, 2013 - link

    4K-64 123-91 , 109-114
    Acc. Time 0.138-0.195 , 0.321-0.405
    Reply
  • Pyrostemplar - Tuesday, April 30, 2013 - link

    On the second table - Kingston SSDNow V300 Specifications - performance drops as capacity increases, something that being correct is completely new in terms of SSDs. AFAIK in every SSD the higher capacity ones have the same or greater performance than lower capacity ones (of the same model, of course). C&P mistake? Reply
  • Kristian Vättö - Tuesday, April 30, 2013 - link

    Nope, it's not a mistake (unless Kingston's datasheet is wrong):

    http://www.kingston.com/datasheets/sv300s3_us.pdf
    Reply
  • mike55 - Tuesday, April 30, 2013 - link

    The images on page 3 aren't working for me.

    Is there any significant difference in the msachi drivers compared to intel rst? Is it worth installing the intel ones when using an SSD?
    Reply

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