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)

When the Heavy test is run on an empty drive, the large SLC cache of the Crucial P1 enables it to deliver an average data rate that is competitive with most high-end NVMe SSDs. When the drive is full and the SLC cache's size is greatly reduced, the performance drops to well below that of a typical mainstream SATA SSD. This behavior is essentially the same as that shown by the Intel 660p.

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

The empty-drive run of the Heavy test doesn't push the latency of the Crucial P1 up any higher than is typical for high-end NVMe drives. Things get more interesting on the full-drive test run, where the average latency from the P1 increases by a factor of 12 and the 99th percentile latency increases by a factor of 58. The average latency from the P1 is only slightly worse than the Intel 660p, but the 99th percentile score is three times that of the 660p.

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

The average read latency of the Crucial P1 is significantly affected by whether the test is run on a full or empty drive, but even the worse of the two scores is still clearly better than what the Crucial MX500 manages. On the write side of thing, filling the drive has an almost catastrophic effect on latency, driving the average up by a factor of 17, an even more severe impact than the Intel 660p shows.

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

The 99th percentile read latency from the Crucial P1 is typical for high-end NVMe SSDs for both the full and empty drive test runs. The high overall 99th percentile latency is due entirely to the write portion, where filling the drive increases 99th percentile write latency by almost two orders of magnitude.

ATSB - Heavy (Power)

The total energy consumption of the Crucial P1 during the Heavy test is significantly higher than for the Intel 660p, and the difference between the empty and full drive test runs is larger for the P1 than for any other drive.

AnandTech Storage Bench - The Destroyer AnandTech Storage Bench - Light
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  • Marlin1975 - Thursday, November 08, 2018 - link

    " The company's first attempt at an NVMe drive was ready to hit the market but was canceled when it became clear that it would not have been competitive."

    Looking at this one maybe it should follow the same fate. Or the price should be much lower.
    Reply
  • StrangerGuy - Thursday, November 08, 2018 - link

    The MSRP for the 1TB is a completely non starter when the excellent EX920 1TB already hit $170, but if the actual price drops to $120 it's definitely appealing especially for a low write count usage like a Steam install drive. Reply
  • FullmetalTitan - Thursday, November 08, 2018 - link

    The 970 EVO 1TB NVMe was just on sale for $228 on most retail sites in the US. At the same cost/GB and significantly better performance, it isn't even a question what to buy currently. Reply
  • menting - Thursday, November 08, 2018 - link

    comparing sale price vs retail price is pretty meaningless. Reply
  • Billy Tallis - Thursday, November 08, 2018 - link

    Given how flash memory prices have been dropping, today's sale price is next month's everyday retail price. Reply
  • DigitalFreak - Friday, November 09, 2018 - link

    Just saw the 970 EVO 1TB is $219 at Microcenter. Unless it gets a $50+ price cut immediately, the P1 is DOA. Reply
  • tokyojerry - Friday, April 19, 2019 - link

    Currently $128 at Amazon. As of 4/19/2019 3:14:42 PM Reply
  • 0ldman79 - Monday, November 12, 2018 - link

    I just paid $139 for a WD Blue 1TB 3D m.2 a couple of days ago. Haven't even beaten on it thoroughly.

    In quick testing (video encoding) during the decompress it will sustain 300MBps for a while, not sure if I'm hitting a drive limit, IO limit or CPU limit shortly there after. The program starts a few other processes, so I'm thinking CPU.
    Reply
  • III-V - Thursday, November 08, 2018 - link

    They are supposedly having yield issues. If they resolve those, there is plenty of room for cost to come down. Reply
  • Oxford Guy - Thursday, November 08, 2018 - link

    Look at what happens with DRAM every time. DDR2 comes out and DDR1 becomes more expensive. Rinse repeat.

    QLC may lead to higher TLC prices, if TLC volume goes down and/or gets positioned as a more premium product as manufacturers try to sell us QLC.
    Reply

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