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  • CrystalCowboy - Tuesday, June 25, 2019 - link

    PCIe 4.0: We have word of a number of SSDs coming soon. AMD will be releasing Navi graphics cards for it soon. I haven't seen anything about 10G ethernet cards using PCIe 4.0 yet. I calculate that a 10G interface should be able to fit on a PCIe 4.0 x1 interface. Is my math correct? And is there any word of such a card in the works from anybody?
  • MrAndroidRobot - Tuesday, June 25, 2019 - link

    Just buy a motherboard with one build in like the Gigabyte Aorus Xtreme
  • R3MF - Tuesday, June 25, 2019 - link

    And what will those built in 10Gb controllers be attached too?
  • DigitalFreak - Tuesday, June 25, 2019 - link

    Yes, PCIe 4.0 is 2GBps per lane. I doubt you'll see a PCIe 4.0 x1 network card anytime soon though. There's not really a market for one, as most everyone is still on PCIe 3.0.
  • CrystalCowboy - Tuesday, June 25, 2019 - link

    "... as most everyone is still on PCIe 3.0."

    Check back after July 7, 2019
  • Dragonstongue - Tuesday, June 25, 2019 - link

    ROFLMAO

    no kidding, will not take long there will be AMD 7nm and PCI-e 4 etc in the world at large, likely for a "reasonable cost" considering the stupid amount of crap they fit under the same size lid as they have always used (more or less) since skt 939/940 (not counting Threadripper of course)
  • DigitalFreak - Tuesday, June 25, 2019 - link

    Sorry, but your fantasy that PCIe 4.0 is going to take over the world is laughable.
  • Chaitanya - Wednesday, June 26, 2019 - link

    Enterprises will be more than willing to upgrade to PCI-e 4.0 as it allows them add more network interfaces and storage.
  • Ej24 - Wednesday, June 26, 2019 - link

    IIRC, IBM power systems have been shipping with pcie 4.0 for several years already so enterprise is already on board.
  • Eletriarnation - Monday, July 1, 2019 - link

    Of course it will, just as the standards we use now took over the world from the standards before then... it's just a matter of how long it will take.
  • ERJ - Tuesday, June 25, 2019 - link

    I doubt you will see a 1x 10GB card any time soon. The math is correct but it would be a niche as only new generation AMD boards would support it and it would get neutered in all other sockets. Once Intel gets PCIe 5 out then we'll probably see more 1x 10GB adapters.
  • ghm3 - Thursday, June 27, 2019 - link

    Actually the math is not quite correct. A saturated 10Gb NIC would use 2.5GBps @ full duplex, and a single PCIE 4.0 lane is only 2GBps.
  • TheUnhandledException - Saturday, June 29, 2019 - link

    PCIe is also full duplex. PCIe 4.0 is 2 GB/s in each direction. More than the max of 10 GBe which is 1.25 GB/s max in each direction.
  • samerakhras - Thursday, June 27, 2019 - link

    you will see 10GB more on AMD boards onboard. will be cheaper and easier to add onboard.

    Intel is in big trouble in the desktop market
  • IanCutress - Tuesday, June 25, 2019 - link

    I've not seen any PCIe 4.0 enabled 10G controllers announced so far. I can poke Aquantia, see if they'll say anything.
  • AdditionalPylons - Tuesday, June 25, 2019 - link

    +1
  • Reflex - Tuesday, June 25, 2019 - link

    Aquantia was acquired by Marvell, I wouldn't expect any new lines in this space, supposedly they just want them to improve thier in-car connectivity solutions.
  • Chaitanya - Wednesday, June 26, 2019 - link

    It still hasnt been acquired by Marvell, its in process of acquisition(according to aquantia's website).
  • TrevorH - Tuesday, June 25, 2019 - link

    This article has the read/write speeds reversed and needs correction. The Corsair website has it correctly as 4.9GB/s read, 4.2GB/s write.
  • eek2121 - Tuesday, June 25, 2019 - link

    IMO people worry about PCIE lanes too much. It's not like you are saturating the bandwidth of the PCIE bus 24/7. Even on my old Core i7 2600k I could easily use my 10 gig NIC and 1080ti without performance issues. I've never seen someone with so many devices they run out of lanes. You will run out of slots before lanes are an issue.
  • GreenReaper - Tuesday, June 25, 2019 - link

    If you had more lanes, or they went faster, you could have more slots . . .
  • quantumshadow44 - Tuesday, June 25, 2019 - link

    why one needs copper (=expensive) 10GbE now?
    $200 NIC or $700 mobo with embedded NIC, $600 10GbE switch, 8 CAT cable...
    Cheap SFP+ solution looks smth like this: https://youtu.be/MDiiHN0MPdA
  • Santoval - Wednesday, June 26, 2019 - link

    "I haven't seen anything about 10G ethernet cards using PCIe 4.0 yet."
    Because as with nearly every innovation in computing it's a classic "chicken & egg" situation. Why/how could ethernet card / whatever card vendors upgrade to PCIe 4.0 when there was no motherboard & CPU with PCIe 4.0 support? However now that AMD are providing the chicken (or is it the egg?) to the market they allow everyone to break this circle.
    PCIe 4.0 will truly take off when Intel upgrade to it, however I now hear whispers that they will move directly to PCIe 5.0 with Tiger Lake, in late 2020.. If that's the case PCIe 4.0 will probably turn out to be a stopgap PCIe version.
  • TrevorH - Tuesday, June 25, 2019 - link

    Write speeds higher than read speeds? That's unusual unless the figures are accidentally switched.
  • boeush - Tuesday, June 25, 2019 - link

    It's typical, actually. The writes are faster because they initially go into onboard RAM (or SLC) cache. When that fills up (under high sustained load), the writes be one a lot slower. But that's why those are "up to" numbers: the goal is to bamboozle the typical consumer who doesn't bother reading the fine print (or product reviews...)
  • TrevorH - Tuesday, June 25, 2019 - link

    No, the Anandtech article looks to be wrong. The Amazon US ad it points to for purchase says "up to 4, 950MB/s sequential read and 4, 250MB/s sequential Write speeds" as does https://www.corsair.com/uk/en/mp600-gen4-pcie-ssd
  • Valantar - Tuesday, June 25, 2019 - link

    I'm glad I was right in my pricing predictions: very close to current high-end SSDs. Currently on Newegg the WD Black 1TB is $238 with the 2TB $500, and the 970 Evo Plus 1TB at $218 on sale (supposedly down from $250) and the 2TB at $498. No PCIe 4.0 premium, in other words - unless this controller is terrible, that is.
  • boeush - Tuesday, June 25, 2019 - link

    Let me guess... those read/write bandwidth numbers are at queue depth 1,000,000. Am I close, or too conservative?
  • oRAirwolf - Tuesday, June 25, 2019 - link

    Are PCI Express 4.0 drives going to have faster random performance at low queue depths than PCI Express 3.0 drives? Superfast sequential is cool but mostly useless for the cast majority of users.
  • PixyMisa - Thursday, June 27, 2019 - link

    No, won't make any real difference for that use case. Tom's Hardware tested one, and the only area it stood out was sequential read and write.
  • samerakhras - Thursday, June 27, 2019 - link

    tomshardware became the worst reviewers on the internet.

    Their test was not p[roffesional at all . they used a PCIe 4.0 converter not a true PCIe 4.0 board in that test
  • peevee - Wednesday, June 26, 2019 - link

    Sounds like you have swapped read and write speeds, at least in the article about Phison controllers they were the other way around.
  • lashek37 - Thursday, June 27, 2019 - link

    My Samsung 970 m.2 gets 5000mb/s speeds on the Asus crosshair Vll . I have screenshots to prove it. my board X470
  • samerakhras - Thursday, June 27, 2019 - link

    meh this cant happen ...
  • TheUnhandledException - Saturday, June 29, 2019 - link

    No it does not. Even with zero overhead the max of a m.2 with 4x PCIe 3.0 lanes is just under 4,000 MB/s. Of course zero overhead is impossible so ~3,600 MB/s is the real world limit of a PCIe 3.0 m.2 slot.

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