Performance vs. Transfer Size

ATTO is a useful tool for quickly benchmarking performance across various transfer sizes. You can get the complete data set in Bench. To highlight the performance of each capacity, I decided to divide the ATTO graphs by each capacity, which should also make the graphs a bit more readable.

IO size scaling remain very similar to the 840 Pro and EVO. It is only at the 128GB capacity where the V-NAND provides a substantial advantage and the 850 Pro is almost as fast as the 120GB Intel SSD 525, which is a SandForce based drive, so its high performance is explained by ATTO's use of compressible data.

 

 

 

 

Random & Sequential Performance Power Consumption
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  • Homeles - Monday, June 30, 2014 - link

    Man, the 850 Pro is killer. Samsung really knocked it out of the park. Those prices are just completely out of touch, though. Reply
  • Awful - Monday, June 30, 2014 - link

    Yeah the prices are high for now. Game changing stuff though; and prices can only come down. PCIe V-NAND? Yes please! Reply
  • Hung_Low - Tuesday, July 1, 2014 - link

    Even better, Intel style NVMe controller + this v-nand!! orgasmic Reply
  • avyshue - Tuesday, July 1, 2014 - link

    yeah, i've been holding off on upgrading from my existing 128 boot drive + mechanical setup to a full 1TB drive. I think I'll keep holding out until PCIe is better supported/better priced. Reply
  • Angrychair - Tuesday, July 1, 2014 - link

    The prices are in line for class leading performance and reliability.

    The reliability is the critical part, these are drives that are unlikely to wear out in any system almost no matter how heavily taxed.
    Reply
  • Ken_g6 - Tuesday, July 1, 2014 - link

    I see these are MLC drives. Hopefully, Samsung will come out with consumer-level 3D TLC drives that have relatively good reliability, and a price at or below Crucial's drives. Reply
  • frenchy_2001 - Tuesday, July 1, 2014 - link

    Reliability is a side effect of retreating to 40nm pitch technology.
    Even if they decided to do TLC with the same cells, they would probably end up being more reliable than 2D nand MLC.
    Reply
  • joelypolly - Thursday, July 3, 2014 - link

    They already have drives in testing that has written over 8 petabytes so I think the reliability is there Reply
  • mkozakewich - Saturday, July 5, 2014 - link

    On that note, I'm wondering how 4-bit MLC would perform compared to 2D NAND. Reply
  • RaistlinZ - Monday, June 30, 2014 - link

    Fantastic drives! That consistency is really remarkable. I don't know if most will pay the price premium for these over the EVO however. The average user probably wouldn't notice a difference in general day to day use. Reply

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