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  1. Cheap VS expensive SSD

    I would say this topic is similar to buying a known-brand GPU vs buying a no-name one. The hardware is the same because many of these small brands use contract manufacturers anyway, making them practically marketing and logistics companies. The real difference is in support (and possibly add-on...

  2. Replicating 850EVO 1TB test

    If you can't find a suitable adapter, you might want to consider Transcend's JetDrive lineup. The drives are SM2246EN based, which isn't 850 EVO good but miles ahead of SandForce and the track record is solid. Pricing is also reasonable compared to what Apple would charge you.

  3. Replicating 850EVO 1TB test

    Ahh, I hadn't heard of that mod so I assumed it was the last (i.e. 2012) classic MBP. There is a possibility that the mod increases the chance of failure since it pulls more power than the system is designed to provide. This is especially true for Macs as Apple only validates specific drives...

  4. Replicating 850EVO 1TB test

    I'm still around, but I don't post that often since my view is biased in many topics now :) Anyway, the problem was confirmed to be the mSATA adapter I used to test (or the voltage regulator in the adapter to be exact). The voltage regulator couldn't provide enough power, hence the drive would...

  5. Discussion ITT: We predict how low the price floor on 120GB/128GB SSD drops

    Correct. The main reason of doing that is to provide a data point at which all SSDs are comparable since the default OP varies quite a bit.

  6. Samsung 850 EVO ReadSpeedTester results (slowdowns yes/no)?

    Ditto. 21nm is bitline half-pitch and it is the same as in 32L V-NAND. The 40nm and 3Xnm figures you see around are measuring a different part of the cell. Technically there is no right or wrong here, it's just a matter of context.

  7. Samsung 850EVO going up?

    http://www.businesskorea.co.kr/english/news/industry/15115-rising-chip-prices-prices-nand-flash-memories-sharply-rise-after-those-drams

  8. Beware SSDs with missing ATA features! (Team L7 EVO)

    Ahh, my bad then. I thought you meant the Samsung drive, hence my comment.

  9. Beware SSDs with missing ATA features! (Team L7 EVO)

    There is a Serial ATA logo on the right hand side.

  10. AT's best SSDs Q2 2016 article

    While being active in the forums is encouraged, it's not demanded. Every editor makes their own choice whether they want to participate in forums and social media, and from what I know Billy doesn't seem enthusiastic about either.

  11. True SSD capacity - GiB and GB vs overprovisioning?

    For what it's worth, SI prefixes (i.e. kilo, mega, giga, tera...) predate any computer. The mistake was made when someone decided that 1000 and 1024 are close enough, so it's okay to use the same prefixes for both. If you ask me, the problem is that Microsoft etc. are treating GB as GiB, while...

  12. True SSD capacity - GiB and GB vs overprovisioning?

    There is more if you count the spare bytes, but those are pretty much solely used for ECC purposes and aren't freely accessible by the controller. SanDisk Ultra II was a special case because it combined TLC NAND with a controller that wasn't designed for TLC. Hence SanDisk had to resort to a...

  13. Which PCIe SSD for MacBook Pro?

    Apple uses custom form-factor SSDs in Macs, so you can't just buy any drive from NewEgg. Currently, OWC is the only source for aftermarket SSDs for MBPs, but the downside is that they are slower than the SSDs Apple use (OWC's are just two SATA 6Gbps SSDs behind a RAID controller, which means...

  14. True SSD capacity - GiB and GB vs overprovisioning?

    1TB doesn't have to be exactly 1000^4 bytes. See the IDEMA spec for calculating advertised capacities (it's a download link so don't be surprised). Kingston UV400, like all client drives advertised as 480GB, start with 512GiB of raw NAND. Since the usable space is 480GB, the...

  15. Discussion ITT: We predict how low the price floor on 120GB/128GB SSD drops

    Or JMicron JMF680 aka Maxiotek MK8213/MK2815

  16. Optane roadmap?

    Those are all client drives, so it suggests PCIe NVMe 3.0 x2 and x4 designs in late this year and early next year.

  17. Preliminary results for Crucial BX200 concerning degraded read speeds

    Hi Allyn! I don't think so. The X25-M and other older SSDs used binary tree FTLs, which require minimal DRAM, but performance can degrade over time as the lookup time increases as the binary tree grows in size. Pretty much all SSDs use "flat" FTLs nowadays, which is why they require about 1MB...

  18. ADATA SU700 Maxiotek

    Maxiotek is a spinoff of JMicron's SSD controller business. It's a separate company, which JMicron sold all its SSD IP to, so JMicron no longer makes SSD controllers.

  19. Can LDPCC work with MLC SSDs to extend their P/E cycles too?

    Sure and LDPC is exactly what extended the endurance of Intel P3700 after the launch.

  20. ADATA SU700 Maxiotek

    I don't have any further info. I suspect this might be just ADATA rebranding the controller (photos had a sticker on the controller) as JMicron's reputation isn't the best to put it lightly. We'll probably get more info as review sites have their meetings with ADATA and JMicron.

  21. ADATA SU700 Maxiotek

    It's a DRAM-less JMF680

  22. Bad to secure-erase a Samsung SM951 AHCI M.2 PCI-E SSD?

    What if you run just the 4K QD32 test, does it make it faster? One possibility is that there are backgrounds tasks going on in the OS, which is typical for new installs. Might be worthwhile to give it a day or two and then benchmark to see if anything changes.

  23. Bad to secure-erase a Samsung SM951 AHCI M.2 PCI-E SSD?

    What sort of speeds are you getting? What capacity and OS is this? The SM951 doesn't have very high 4K32 performance, but then again that test is irrelevant in real-world usage.

  24. Bad to secure-erase a Samsung SM951 AHCI M.2 PCI-E SSD?

    Chris Ramseyer from Tom's (he was at TweakTown back then) broke one by secure erasing it using Parted Magic. I never experienced such issue (secure erasing is a must for reviews), but I made sure to erase using an Ubuntu distro and hdparm commands instead of Parted Magic. Not sure if it really...

  25. Samsung 950 Pro - PCIe Slot information

    The link speed of PCIe 3.0 is 8Gbps. It uses more efficient encoding (128/130 vs 8/10) than earlier PCIe revisions, hence it's able to achieve ~1GB/s with 8Gbps raw bitrate compared to PCIe 2.0 requiring 5Gbps to reach 500MB/s. Everything is as they should be, no worries.

  26. new 850pro firmware update possible without magician ?

    Magician DC only supports enterprise drives, hence it's not recognising your drive. I'll send a note asking if there are plans to continue ISO support, but I don't see why there wouldn't be as we already have the tool built. So far there just hasn't been any updates to the 850 or 950 series.

  27. Do you think we will see any of the NAND manufacturers using the node after 15/16nm?

    Samsung and SK Hynix are already on it: http://www.custompcreview.com/news/samsung-mass-produces-14nm-nand/27476/

  28. Slow write speeds but normal read speeds (SAMSUNG 850 EVO)

    Is AHCI enabled in BIOS? Has it always been like this or did it happen suddenly? Are you running the latest firmware?

  29. Which "old" SSD should I keep?

    Which XLR8 is it, the SF2281 or the SM2246EN one? If it's the SM2246EN one, I would keep it, but otherwise keep the M4 as SF2281 has been everything but reliable.

  30. Install Win10 on M.2 SSD 256 GB or on SSD 2.5" SATA III 1TB

    Both are SATA 6Gbps drives, so it really doesn't matter. The 256GB M.2 might be better from data management perspective as you can have the OS and apps there and then use the 1TB EVO for data.

  31. Recent HDD price increase?

    At least Amazon's price history doesn't show any dramatic changes. Of course, there have been sales in the past few months with lower pricing, but the long-term price trend is still in a decline. Perhaps you just looked at HDDs during sales.

  32. Crucial MX300

    I heard the release was postponed due to reviewers being dissatisfied with the performance.

  33. Crucial MX300

    Based on the die size and memory array efficiency the cell size of Intel/Micron 3D NAND is about the same as Samsung's V-NAND. Process nodes are actually very tricky because all the numbers you see are nearly always just marketing figures i.e. the smallest feature size in the die. By that...

  34. New to SSDs and Getting Benchmark Errors

    Is there AS-SSD-TEST42 folder in your C directory? If there is, delete that and try again. It's the temporary directory where AS-SSD writes, which should be deleted as soon as the test is done. In any case, it's an error in AS-SSD and has nothing do with your SSD.

  35. New to SSDs and Getting Benchmark Errors

    Have you simply tried to run AS-SSD as an administrator?

  36. Crucial MX300

    Four-plane design is mandatory for such a large die with current SSD capacities, especially given that the cell-level performance of Micron 3D NAND doesn't look too good. http://m.chinaflashmarket.com/news/industry/152396

  37. Crucial MX300

    The 384Gbit die is TLC. MLC is 256Gbit. For now we don't know for sure which the MX300 uses, though, as 750GB is perfectly possible with 256Gbit dies as well.

  38. 3D XPoint

    There are a few critical errors in the article: That's because Intel hasn't been in the DRAM business for decades, and the NVM Group has been there for years. Entering the business now wouldn't make any sense given that DRAM revenues are more or less flat and there's been more and more...

  39. TLC, MLC and no ahci

    But the effect of read-modify-write is much bigger with TLC as the erase and program times are substantially longer.

  40. Which cheap 120GB/240GB SSD?

    I'm guessing he meant Silicon Motion.
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