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  • mukiex - Tuesday, January 9, 2024 - link

    Is it just me or is that the same DWPD as their QVO lineup?
  • PeachNCream - Wednesday, January 10, 2024 - link

    Yes and that's based on loose math around the garbage TLC and QLC NAND we get to enjoy these days.
  • DanNeely - Thursday, January 25, 2024 - link

    Haven't non-premium consumer SSDs been sitting at a nominal .3 writes/day for close to a decade now?
  • sheh - Sunday, January 14, 2024 - link

    Same as the, for example, 860 EVO.
  • zamroni - Friday, February 9, 2024 - link

    990 pro and wd sn850x also has 600x byte write
  • meacupla - Tuesday, January 9, 2024 - link

    I think the 2x5.0 mode is only there for marketing purposes.
    There is no desktop or laptop CPU that bifurcates down to 2x pcie lanes.

    And these speeds are similar to budget 4.0 drives from other manufacturers.
  • HaninAT - Tuesday, January 9, 2024 - link

    I believe this is actually to fix the compatibility issue with non-pcie 5.x devices on the same bus. It seems that any lower standard device on the bus will drop down all other devices to the lower standard. It's never really been an issue, as we've hardly had any devices that can saturate the PCIe bus, but some SSDs can now.

    This is just my guess, I haven't actually looked in to it, but it makes sense.
  • Billy Tallis - Tuesday, January 9, 2024 - link

    PCIe isn't a shared bus; there's no way to have other devices on the same bus. It's all point to point links.
  • HaninAT - Tuesday, January 9, 2024 - link

    It's point to point to a "hub". Does the hub drop down the link speeds for all devices if one device is a lower standard protocol device?
  • JasonMZW20 - Tuesday, January 9, 2024 - link

    It does not since all PCIe protocol specifications are backwards compatible and link speeds are auto-negotiated to connected hardware up to the maximum supported speed or artificially limited speed with firmware configuration.

    Even on Intel and AMD desktop platforms, there's mixed 5.0 and 4.0 support. 4.0 is usually used for the chipset link. In that way, the chipset is only a 4.0 hub and muxed expander, but there are still at least x16 GPP lanes, and for AMD's AM5 (excl. 8000G), x8 lanes for SSDs that can be configured for 5.0 directly from the CPU.
  • ballsystemlord - Tuesday, January 9, 2024 - link

    The speeds do not need to be dropped as each connection is independent of the other connections to other devices. That being said, the PCIe implementation might be flawed in some products so that link speeds do get dropped. AFAIK no tech reviewer tests for this.
  • ZoZo - Tuesday, January 9, 2024 - link

    Probably a chicken and egg situation. If motherboard makers see that kind of product start to appear, they might introduce bifurcation support for it, as well as M.2 x2 slots, maybe with some shared lanes (M2_1 is x4 unless M2_2 is populated, then both are x2). That would allow 4 7GB/s-class M.2 SSDs directly to the CPU on mainstream AM5, which would be pretty neat.
  • meacupla - Tuesday, January 9, 2024 - link

    It's a CPU limitation.
    Desktop and laptop PCIe bifurcation is segmented so it doesn't eat into server and HEDT chips.

    If you add bifurcation to the mobo, it's going to require a switch.
    PCIe 5.0 switches are extremely expensive.
    PCIe 4.0 and 3.0 switches multiplexers less costly, but then you've defeated the purpose of a 2x5.0 drive.
  • Skeptical123 - Wednesday, January 10, 2024 - link

    The points the author made for this choice are still valid and the most likely reason. 2x PCIe lane slots were popular on gen 3 budget devices for the same reason(s).
  • Samus - Wednesday, January 24, 2024 - link

    These are a tough consideration over the Solidigm P44\P41 Plus and WD Black (which are all cheaper and equally fast) unless you absolutely need the bragging rights of a PCIe 5.0 drive (in which case the Crucial T700 and Seagate 540 are both 'real' PCIe 5.0 drives with 'real' PCIe 5.0 performance.)

    Add to that Samsung's legendary awful customer service and chronic reliability issues going back a decade to the 840 drives. They haven't had an OEM design win among Dell, HP or Lenovo in years.
  • erotomania - Wednesday, January 24, 2024 - link

    Eff (F*) the P41 Plus QLC junk. Slow and hot - seriously disappointing from Solidigm. I would rather have P31 Golds in half the capacity.
  • Pneumothorax - Wednesday, January 24, 2024 - link

    I bought 2 of them for $65 each when SSDs were cheap and they've been great gaming drives. I'm not transferring a 100gb into them at a time.
  • Samus - Friday, January 26, 2024 - link

    The P41 Plus is basically an Intel 670P, which were among the first, and remain among the best, QLC drives. They are incredibly reliable and long term maturity has proven they are FAR more durable than rated.

    But I won't argue your sentiment, the P31 Gold is a legendary drive that put Hynix on the map in the consumer market. As disappointing the P41 and P44 are in comparison, they are still excellent drives, just lacking the efficiency of the P31.
  • Byte - Tuesday, February 6, 2024 - link

    P41 Plus is the Intel side of Solidigm. If you want the best go for the Hynix side.

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