AnandTech Storage Bench - Light

Our Light storage test has relatively more sequential accesses and lower queue depths than The Destroyer or the Heavy test, and it's by far the shortest test overall. It's based largely on applications that aren't highly dependent on storage performance, so this is a test more of application launch times and file load times. This test can be seen as the sum of all the little delays in daily usage, but with the idle times trimmed to 25ms it takes less than half an hour to run. Details of the Light test can be found here. As with the ATSB Heavy test, this test is run with the drive both freshly erased and empty, and after filling the drive with sequential writes.

ATSB - Light (Data Rate)

The Crucial SSDs occupy the bottom half of the average data rate rankings for the Light test, as the other 3D NAND SSDs in this bunch are able to deliver higher peak performance. The BX300 is slower than the MX300 when the test is run on an empty drive, but for a full drive the BX300 is the fastest Crucial SSD and also faster than the ADATA SU800.

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

The average and 99th percentile latency scores for the BX300 are worse than the other 3D NAND SSDs in this comparison, but there's enough of a gap for it to matter.

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

The average read latency of the Crucial BX300 on the Light test is better than any other Crucial drive, but is unimpressive compared to the 3D NAND SSDs from other brands. The average write latency is significantly higher than most of the other SSDs (excepting the BX200), but is not enough to cause real problems for light workloads.

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

The 99th percentile read and write latencies tell pretty much the same story as the averages for the BX300: it performs fine for read operations, but is a bit slower for writes.

ATSB - Light (Power)

The Crucial BX300 turns in another second-place score for power efficiency, behind the MX300. The Light test doesn't put too much stress on the MX300's SLC caching, so it keeps its first-place efficiency even when the test is run on a full drive.

AnandTech Storage Bench - Heavy Random Performance
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  • sonny73n - Wednesday, August 30, 2017 - link

    Got my 840 Evo when it first released and it was the last Samsung product I ever bought. I have no idea why many praise Samsung products. I had a Samsung plasma TV and two horizontal black lines appeared only after 14 months, 3 more appeared 2 months after. Then it became unwatchable. Now let's not talk about Samsung phones.
  • bug77 - Wednesday, August 30, 2017 - link

    I guess you have a thing for picking bad products? Plasma (with its known shortcomings) over LCD? 840EVO when planar TLC is just about as bad as it gets?
    No, you can't blame this on Samsung. Granted, their products, with few exceptions, are definitely average, but so is their pricing.
  • sonny73n - Wednesday, August 30, 2017 - link

    "No, you can't blame this on Samsung." Haha ok. Who are you to tell me not to voice my reasons? It was my money, not yours. Who would not expect a 3D Samsung plasma TV last for at least 3 years (2 hrs/day). And who would have thought a giant SSD brand like Samsung released something like the 840 Evo. Blame or not to blame, it's not important. I'd just never buy anything from a company that would up for sale half-baked products with/without knowing their shortcomings. Did they sell some phones that exploded recently? See, this is what I'm talking about.

    Until you get a Samsung blown up in face, everyone else's reasons for not buying Samsung are irrelevant.
  • chrnochime - Wednesday, August 30, 2017 - link

    Hi Samsung fanboy. You really going to say plasma is worse in every way over LCD? Ignoring the black level and response time? Okay then.
  • Alexvrb - Wednesday, August 30, 2017 - link

    Bug never said plasma was worse in every way. He did say it had known shortcomings, which it does - like longevity. Plasma also has some advantages, although it's dying off in favor of OLED on the high-end. With that being said, yes in this case Samsung DID sell him a lemon. Even with a plasma you should get a good few years of service, at least.
  • Alexvrb - Wednesday, August 30, 2017 - link

    Way to assume things, buddy. I'm not a Samsung fanboy, FAR from it. I don't currently own any other Samsung products outside of their SSDs. The fact is that the 850 Evo is the king of affordable SATA SSDs, period. Sorry for not being biased and preferring a superior product despite being Samsung. The 850 Pro is better in some heavy workloads but is a lot more expensive. Although for the record the 840 Evo was actually OK, I've got a system with the last firmware released and it has been fine. The 830 was also solid.

    I don't have much personal experience with their recent TVs, and I've only used their latest model phones for a few minutes here or there. Although I don't have any strong inclination to defend them as a company, I would bet your experience is rare. TVs are a crapshoot anyway. Their phones *generally* seem solid, even if I occasionally rail against them for lack of easily replaced batteries and SD card slots for some models - aside from the most obvious butt of many jokes, the last gen Note. Again, this is coming from someone who rarely buys Samsung.
  • tyaty1 - Thursday, August 31, 2017 - link

    Personally I am happy with their Series 6 TV from 2011, and I had no issue with their SSD-s.
    (Though I currently use a 256gb Crucial M550 in my notebook, which was 118 USD in 2015)
  • sonny73n - Monday, September 4, 2017 - link

    Alexvrb, are you and bug77 the same person? If not, why are you responding to chrnochime's reply meant for bug77?

    It's the first I've heard (from you) that TLC is better than MLC. An TLC drive might have performance than an MLC if it has better controller. But for endurance, generally MLC is better than TLC and this is the fact. When you made a statement like "MLC or not, the TLC Evo is better...", people can only assume one thing about you. Anyway, you should have a little read about SSD tech before making such assertion.
  • chrnochime - Wednesday, August 30, 2017 - link

    There are people who care a lot more about RATED endurance than performance. You obviously aren't one of them, and your opinion about the EVO being best option != the truth/fact. LOL
  • Alexvrb - Wednesday, August 30, 2017 - link

    They're also high endurance. 850 Evos have excellent endurance, and in real endurance torture testing they even exceed expectations. But feel free to spread FUD like a boss.

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