Recent content by Maxxify

  1. M

    Question Importance of SSDs with DRAM in 2025?

    Just FYI, some of the WD Blue drives do have a bug of sorts where you actually want to disable write caching. It was discussed a bit on my discord server but I did not test it myself (I have an SN580, but it's a portable game drive for a Steam Deck). Looking at your reply above, it seems like...
  2. M

    Question Importance of SSDs with DRAM in 2025?

    That is DEFINITELY not normal but you'd have to diagnose the system and/or drive. The SN570 isn't a bad drive. A drive being DRAM-less does not de facto make it a bad drive, either, even for sequential transfers. Especially since any drive can keep up with Internet speeds, although lots of small...
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    Review Acer Predator GM9000 2TB SSD Review: The Bargain High-End PCIe 5.0 SSD

    Acer's drives are handled by Biwin, who also makes drives for HP and some others IIRC. Their drives do tend to be focused on affordability. 232L is older when considering the newer controllers (SM2508, E28). It falls behind 276L and BiCS8 in performance and/or power efficiency. Has nothing to...
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    Review Sandisk WD Black SN8100 2TB SSD Review: The fastest overall consumer SSD ever made

    It's confusing because it's Sandisk and the model is WD_BLACK SN8100 (worse even, since it was originally SanDisk before lower-casing for marketing). So it should be Sandisk WD_BLACK SN8100 but the capitals are annoying (yeah, they kept those) and normally these drives under WD would just be...
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    Question SSDs & data retention in various setups (laptop/desktop, internal/external SSDS)

    The drive stores date stamps as metadata ("last read") and maintains metadata in terms of groups of blocks wherein the blocks in any group share characteristics based on page sampling. This is because not all word lines in a die perform or act the same, e.g. top layers program slower but have...
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    Question SSDs & data retention in various setups (laptop/desktop, internal/external SSDS)

    A normal consumer drive will rely on the host clock and/or a power-on state to determine if flash needs to be read and reflashed. So, this requires more than passive power, although theoretically it's possible to have external devices that can wake drives. In real world use, people rely instead...
  7. M

    Question Similarities of high-end Gen 4 NVMe SSDs ?

    Arguably, yes, although with my resources I try to split drives by category of utilization (e.g. purpose) rather than performance tiers. For example, larger QLC drives make more sense as HDD replacement, write-few read-many, games, archival, backups and storage, etc, while a TLC drive can be...
  8. M

    Question 90% disk usage when downloading game

    This looks to be a 512GB Micron 2400. How fast are you downloading? This drive uses QLC and at this capacity (which is low) the cache is pretty small and QLC performance will be pretty terrible. To ballpark it, this flash is rated for up to 27 MB/s per die and you have four dies here so a max of...
  9. M

    Question How come there is no enclosure for PCIe Gen 5 NVMe SSD?

    There are 80Gbps TBT5 enclosures that pass x4 PCIe 4.0 lanes, that's about the extent of it. These will take Gen5 drives but they will run at Gen4 speeds. So a drive like the 990 PRO is just fine. Honestly, you won't be bottlenecked by that fast of an external connection as the actual native...
  10. M

    Review Corsair MP700 Elite SSD review: The retail, budget PCIe 5.0 SSD of choice is officially here

    Should be even more efficient. Would be cool to see it tested at lower PCIe speeds.
  11. M

    Review Corsair MP700 Elite SSD review: The retail, budget PCIe 5.0 SSD of choice is officially here

    682.4 MB/s per watt. This is over 50% more efficient than the 2TB Gold P31, if that puts things into perspective.
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    Review Samsung 990 EVO Plus SSD review: The real EVO drive is here

    There's a difference between 2Tb TLC dies and 2TB TLC packages. Currently you can stack up to 16 dies in a package which, since there are 8 bits in a byte, means you can reach 2TB in one package with just 1Tb dies. That's the case here and 1Tb dies for TLC are fairly common these days. As it...
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    Review Samsung 990 EVO Plus SSD review: The real EVO drive is here

    The 970 EVO Plus has twice the channels and a much smaller cache. Speed wise, I think we went from the two-plane V5/92L (~500µs tPROG) to four-plane V8/236L which at its rated ISSCC speed of 164 MB/s should be in the 390µs range. So, yeah, about 25% faster if it had the same size cache, but...
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    Review Samsung 990 EVO Plus SSD review: The real EVO drive is here

    We did have x2 M.2 slots in the past on some boards and quite a few laptops. I've also seen x1/x1/x1/x1 bifurcation for SSDs over the PCH (ASRock board) as the southbridge is a PCIe switch in its own right. I think x2 might be a thing for some laptops with PCIe 5.0 and there are some AICs with...
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    Review Samsung 990 EVO Plus SSD review: The real EVO drive is here

    We've had 1.33Tb QLC dies for a while now, technically, which would be up to 2.66TiB per package, but it's not really used that way often. In enterprise it is because Intel's "QLC" was taped out as 5-bit PLC at 1.66Tb per die (3.33TiB package). In QLC mode it's 1.33Tb dies, in TLC 1Tb dies...