AnandTech Storage Bench - Heavy

Our Heavy storage benchmark is proportionally more write-heavy than The Destroyer, but much shorter overall. The total writes in the Heavy test aren't enough to fill the drive, so performance never drops down to steady state. This test is far more representative of a power user's day to day usage, and is heavily influenced by the drive's peak performance. The Heavy workload test details can be found here. This test is run twice, once on a freshly erased drive and once after filling the drive with sequential writes.

ATSB - Heavy (Data Rate)

The average data rates from the Phison E12 on the Heavy test are good, but the exceptional empty-drive performance of the HP EX920 is well out of reach for the Phison E12. However, the E12 doesn't sacrifice full-drive performance the way the EX920 does.

ATSB - Heavy (Average Latency)ATSB - Heavy (99th Percentile Latency)

The average and 99th percentile latencies from the Phison E12 are great, leaving the E12 more or less tied for the lowest-latency flash-based SSD.

ATSB - Heavy (Average Read Latency)ATSB - Heavy (Average Write Latency)

The average read latency of the Phison E12 on the Heavy test is good but not exceptional like the HP EX920 (in the empty-drive test run only). The average write latency of the E12 is great, but the Samsung 970 EVO is a bit faster when the test is run on an empty drive.

ATSB - Heavy (99th Percentile Read Latency)ATSB - Heavy (99th Percentile Write Latency)

The 99th percentile read latency from the Phison E12 is excellent and essentially tied for first place among flash-based SSDs when the Heavy test is run on an empty drive. When the drives are full, the WD Black takes the lead over the Phison E12 and HP EX920. The 99th percentile write latency of the Phison E12 is nothing special, except that the full-drive score is just as good.

ATSB - Heavy (Power)

The Phison E12 is just behind the Phison E8-based Kingston A1000 for energy usage on the Heavy test. Both drives are quite efficient for a NVMe drive, but the WD Black is still the only one that matches the efficiency of a good SATA drive.

AnandTech Storage Bench - The Destroyer AnandTech Storage Bench - Light
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  • DigitalFreak - Wednesday, July 18, 2018 - link

    Another high end competitor is always a welcome site. Hopefully it will push prices down further. Reply
  • Mikewind Dale - Wednesday, July 18, 2018 - link

    And that idle power consumption is great. Looks like we have a great SSD for laptops. Reply
  • Amoro - Wednesday, July 18, 2018 - link

    Wonder why they didn't use DDR4L? Reply
  • FATCamaro - Wednesday, July 18, 2018 - link

    All DDR4 is the same. There are only improvements in LPDDR4 which I haven’t seen anywhere yet Reply
  • III-V - Wednesday, July 18, 2018 - link

    DDR4L operates at a lower voltage, and consumes 80% of the power of DDR4. Where LPDDR shines is with standby power, which is far lower than DDR4 and DDR4L. Reply
  • bug77 - Wednesday, July 18, 2018 - link

    For laptops, SATA will always be the less power hungry choice. Reply
  • Death666Angel - Thursday, July 19, 2018 - link

    If you can do more tasks in the same amount of time, I think a lot of people will not mind a fractional increase in power consumption. How much of a fraction is the SSD power consumption on modern laptops anyway? LCD should still be #1 over the course of a full battery charge. Reply
  • bug77 - Thursday, July 19, 2018 - link

    It's about idle power. It's higher on PCIe.
    And you can rarely get more things done on a NVMe drive, 4k random reads are only slightly better than AHCI. And 4k random reads is what you do most of the time ;)
    Reply
  • Lolimaster - Thursday, July 19, 2018 - link

    And unless you want a desktop replacement laptop nvme makes very little sense for 95% of the users (5% being 4k video editiors). Reply
  • bug77 - Friday, July 20, 2018 - link

    There could be that some laptops only have M2 slots for expansion? Reply

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