AMD shows off Ryzen-ready chipsets and motherboards at CES

Update, 16:55 CST: we have an exclusive look at a few Gigabyte AM4-based mobos.

Everybody's excited about AMD's upcoming CPUs based on the Ryzen core, but a CPU on its own doesn't get you very far. Fortunately, AMD announced last night that it has all of the biggest names in motherboards working feverishly to provide boards for the new chips. That list includes Asus, Gigabyte, MSI, ASRock, and Biostar. AMD will be showing a total of 16 ready-to-go motherboards from these companies at CES.

Enthusiasts will be bolting compatible cooling hardware from "15 top cooler manufacturers" to those motherboards, including such big names like Noctua, Corsair, and EKWB. Alternatively, if you don't want to build your own Ryzen-based machine, AMD says it has seventeen boutique PC shops on board to offer the new CPUs. That list features big names like CyberPowerPC, Maingear, Mindfactory, OriginPC, and IBuyPower, among many others. AMD also said it expects tier-one OEMs—companies like HP, Dell, and Lenovo—to climb on board in the first half of 2017.

Along with this news, AMD presented some new details about the chipsets going into these socket-AM4 motherboards. We already heard about (and have seen motherboards with) the A320 and B350 chipsets, but in AMD previously described those chips as "essential" and "mainstream" options, leaving the "enthusiast" segment open. Now, the company has revealed that the chipset filling that space will be called the X370. Besides the name, the company also revealed some pretty specific details about the capabilities of that new chipset:

You can combine those numbers with these detailed specs on the Ryzen chips themselves:

By our math, it looks like pairing an X370 chipset with a Ryzen CPU nets you six SATA ports, 32 lanes of PCIe connectivity, two USB 3.1 ports, and ten USB 3.0 ports. That's certainly not bad, but it puts the AM4 platform much closer to Intel's regular desktop machines than the Broadwell-E setups that come to mind when we talk about 8-core processors.

Perhaps the most interesting news to come out of last night's announcement, at least for enthusiasts and overclockers, is that all Ryzen CPUs will be unlocked for overclocking. This isn't really a surprise to anyone who is familiar with the history of recent AMD CPUs, but it's nice to have confirmation on that point. Taking advantage of that feature will require a motherboard with an X370, B350, or X300 chipset.

AMD says it expects Ryzen processors, motherboards, cooling hardware, and systems to be available this quarter, so we don't have much longer to wait.

Comments closed
    • ronch
    • 3 years ago

    Where is ECS? I’d love to get ECS again if they can prove their commitment to product quality and support.

    • christos_thski
    • 3 years ago

    I’m probably beating this to a dead horse, but did we really need DDR4?

    Intel has only managed to eke out the customary 5%-10% advantage out of the transition to DDR4 with skylake and, not to put too fine a point to it, for changing RAM that’s…. well…. crap.

    Is there something in Ryzen’s architecture (bear with me) that REQUIRES ddr4 over ddr3?

    Or is it simply a matter of the ram manufacturers beating the drum and cpu makers having to tag along?

    I do understand (I think) that the memory controller is nowadays integrated into the CPU itself, so designing a separate DDR3 sku might have constituted a waste of resources. But I’m simply wondering whether DDR4 has any real palpable advantages for anything other than integrated graphics..

      • Krogoth
      • 3 years ago

      DDR4 is faster, cheaper to produce then its predecessor. The main benefit of DDR4 is that allows larger DIMM sizes at lower price points. The faster clockspeed and tighter latency is just icing on the cake.

      • NTMBK
      • 3 years ago

      Eurogamer did some nice testing with Skylake RAM scaling. They found that even stock DDR4-2133 didn’t get maximum performance out of Skylake in games; you need to go up to overclocked DDR4 to really max out the CPU.

      • chµck
      • 3 years ago

      who goes onto a tech website and complains about faster/improved technology?

        • christos_thski
        • 3 years ago

        Someone who thinks the performance advantages are negligible compared to the costs of switching?

          • tipoo
          • 3 years ago

          The cost of saving money? DDR4 as mentioned is cheaper to make. More power efficient and faster are bonuses.

            • christos_thski
            • 3 years ago

            There are cheaper to make, but cost more? Nice deal you got there.

      • ronch
      • 3 years ago

      Yeah. We should’ve stuck with good ol’ SDR!! I never fell for all these newfangled DDR hype!!

    • strangerguy
    • 3 years ago

    I’ll be totally down for a $100 Zen 4C OCed to 5GHz on a cheapo ITX B350 mobo. I don’t really give a crap about superfluous USB3.1, TB, M.2, >16x PCIE lanes, a million SATA ports or “insert vendor marketing gimmick here” that I will never gonna use.

    • ronch
    • 3 years ago

    I can understand the disappointment felt by some here regarding the feature list of AMD’s chipset. While it is true that most folks aren’t going to need 128 PCIe 3.0 lanes, 32 USB ports, 12 SATA ports, 8 M.2 slots and Thunderbolt, remember, Zen is gonna be a high-profile product launch. Pairing it with what would seem like a relatively spartan chipset compared to the best that Intel has (because the 4C/8T parts are obviously targeted at Intel’s finest) is gonna douse some excitement.

    Speaking of USB ports, it’s still nice to have lots of them. Yesterday I had 2 phones, a tablet, my USB WiFi adapter, keyboard and mouse all connected. That’s 6 devices plugged in. And I thought, “Wow I seldom have this many ships docked on the pier.” All connected to USB 2.0 ports (they’re all USB 2.0 devices anyway and I wanted all of them to connect to the AMD USB 2.0 controller instead of the separate VIA USB 3.0 controller). I was copying files around the machine and the devices and playing Thief 4 (which is nicely threaded). It feels nice to load up all my 8350’s cores despite the occasional stuttering that doesn’t seem to happen nearly as much when I’m not throwing files around. Anyway, so yeah, even if I still had 4 ports at the rear port cluster free (+ 2 ports in front) having an excess of ports still is nice, although going beyond the usual 14 x USB 2.0 + several USB 3.0 ports can be overkill.

    • maxxcool
    • 3 years ago

    Why would the SFF A300 and X300 *NOT* have native USB 3.1 ? :/

    Why would you force vendors to ADD a additional chip plus traces on what is supposed to be a highly integrated SFF host board?

    Anyone have any ideas ?

      • RAGEPRO
      • 3 years ago

      I really don’t understand the point of the X300 and A300 chipsets at all. They don’t seem to add anything.

        • BobbinThreadbare
        • 3 years ago

        They’re probably supposed to be small and cheap.

          • RAGEPRO
          • 3 years ago

          But what do they -do-? Ryzen CPUs are SoCs; they already have SATA and USB on-board. What’s the point of the X300 and A300? They don’t seem to add any SATA or USB or PCIe.

            • crunchbite
            • 3 years ago

            I don’t believe they released all of the details of the 300 series boards yet. I do believe that they are mainly for mini-itx and will only add a small amount of IO though.

            • RAGEPRO
            • 3 years ago

            Well if you check the table above, the X300 and A300 chipsets don’t add any USB, SATA, or PCIe. So I’m just wondering what the heck they do add. Haha.

        • ronch
        • 3 years ago

        Probably meant to go inside cheap office boxes. Think of them as what you would pair with a cheap Celeron box for light office use.

    • RdVi
    • 3 years ago

    Only downside I can see is that if you want to use a M2 drive with 4x NVMe, you have to connect your SATA drives to your southbridge connected SATA ports, otherwise you are limited to 2 lanes PCIe for the NVMe drive only.

    Also I’m not counting 32 PCIe lanes total. The CPU gives us 16 Gen 3 lanes, plus 4 for I/O. The Chipset gives us 8 Gen 2 lanes plus 2 GP PCIe G3 for SATAe? So that would be 22 Gen 3 lanes, and 8 Gen 2.

      • tempeteduson
      • 3 years ago

      The chipset’s two SATAe ports each use two PCIe lanes.

    • Unknown-Error
    • 3 years ago

    Looks like the final version of the top RyZen SKU will be 3.6GHz base to 4.0GHz single core turbo.

    Engineering Sample 1D3601A2M88F3_39/36_N – (So thats 3.6 to 3.9 turbo) – [url<]https://pbs.twimg.com/media/C1aelJ4UUAEG0za.jpg:large[/url<]

    • Chrispy_
    • 3 years ago

    Nobody has mentioned that the essential and mainstream options only have two internal SATA ports.

    Boot SSD and mechanical storage as standard; What if you want to add another of either?

      • crunchbite
      • 3 years ago

      The chipset handles two SATA and the CPU handles two SATA for a total of at least four included on any given motherboard.

        • Chrispy_
        • 3 years ago

        I suppose mechanical storage is just fine hanging off the chipset, so that’s not so bad.

          • derFunkenstein
          • 3 years ago

          The SATA ports on Intel’s motherboards are also handled by the PCH, so it’s not like AMD will be at a disadvantage (although we don’t know what the interconnect from the CPU to the chipset is yet). I would rather those lanes be reserved for an x4 M.2 device and let all the old and slow stuff hang off of the motherboard’s controller.

      • jts888
      • 3 years ago

      I think the writing is on the wall for SATA SSDs, and the question is whether workstation users will want zero, one, or two HDDs.

      NVMe m.2 + vidya HDD + NAS has worked very well for me.

    • DancinJack
    • 3 years ago

    Oof. We kind of knew the chipsets might be touch and go at times and these figures don’t necessarily drive home any confidence either.

    Half speed NVMe with any SATA connected is lame.

      • crunchbite
      • 3 years ago

      You can have two SATA drives connected that are handled by the chipset and still have a full speed x4 NVMe drive handled by the CPU.

    • End User
    • 3 years ago

    Correction: two USB 3.1 [b<]Gen 2[/b<] ports, and ten USB 3.1 [b<]Gen 1[/b<] ports

    • 1sh
    • 3 years ago

    Hmm, SATA Express…

      • Goty
      • 3 years ago

      There are plenty of pictures of boards with M.2 slots on X370 boards, so there’s no need to worry there. Nobody really cares about U.2 support, to be honest.

    • DPete27
    • 3 years ago

    Really wish I’d had the funds to buy AMD stock back in early 2016 before their stock price tripled. I definitely saw it coming. Although, if I had bought stock, I’d be selling it before actual products ship. AMD has a long history of under-delivering.

      • muxr
      • 3 years ago

      They also have a long history of overachieving.

        • Kretschmer
        • 3 years ago

        But not a recent history of overachieving in the CPU realm.

      • jihadjoe
      • 3 years ago

      Trust in Jim Keller!

      • UberGerbil
      • 3 years ago

      Well, you should’ve bought NVDA back then too, seeing as it was the best-performing stock in the S&P 500 for 2016.

    • AMDisDEC
    • 3 years ago

    I’m getting excited!
    Can’t wait to start spending cash on parts for my new AMD system.
    I hope there are no issues with running Ubuntu 16.10.

      • derFunkenstein
      • 3 years ago

      You should buy the RAM and storage now, because those prices seem to be creeping up.

    • ronch
    • 3 years ago

    Such a far cry from when the original K7 Athlons came out and world+dog shipped their boards in unlabeled white boxes for fear of Intel’s wrath. IIRC there weren’t even any PC vendors announcing complete systems prior to launch. But then again that was 18 years ago.

      • muxr
      • 3 years ago

      When Hammer came out, you could only get the Opteron boards and CPUs until Athlon64 was available 6 months later. Buying ECC buffered RAM back then sucked.

    • ronch
    • 3 years ago

    If I’m not mistaken Z270 “offers 48 PCIe 3.0 lanes for graphics alone and an additional 24 PCIe 3.0 lanes for other things. How will X370 stack up?

      • RAGEPRO
      • 3 years ago

      Z270 offers 16 lanes from the CPU and 24 lanes from the PCH, for 40 total.

      X370 offers 20 lanes from the CPU and 12 lanes from the PCH, for 32 total.

    • ronch
    • 3 years ago

    I was actually just thinking about whether or not all ‘Zen models will be unlocked or not. AMD had to use the Unlocked™ card with Bulldozer to help sell them but if ‘Zen is remotely competitive AMD doesn’t need to play that game as much. Anyways, good to know all ‘Zen chips will be Unlocked Ryzen™ Processors.

    • ozzuneoj
    • 3 years ago

    Just a prediction, but I’m expecting B350+4c8t Ryzen to be a common budget enthusiast set up with a potent price\performance ratio. If the early pricing, overclocking and performance rumors are true it should be a pretty sweet combo and I’ll be surprised if it ends up costing over $300 for a board and CPU.

      • muxr
      • 3 years ago

      6c12t more likely.

      • chuckula
      • 3 years ago

      [quote<]I'll be surprised if it ends up costing over $300 for a board and CPU.[/quote<] If that happens kiss AMD goodbye. Something that AMD fanboys tend to forget is this: AMD doesn't stay in business by winning some benchmark competition. They stay in business by selling products for a profit.

        • Waco
        • 3 years ago

        He is talking about the mainstream board and the smallest Ryzen chip they can actually ship. $300 wouldn’t be insane if they actually have a single-die version of the silicon in the works.

          • ozzuneoj
          • 3 years ago

          Yes, that’s what I meant. I don’t see why a decent board has to cost over $100, and the cheapest Ryzen chip with 8 threads will likely be at or under $200 (totally unsubstantiated rumors have said around $150 which is doubtful but would be nice for us poor folk). Of course all of the better models will cost more, but if the cheapest 4c8t Ryzen can over clock decently and be somewhat competitive with a $300 i7, I might finally consider an upgrade for my 2500k.

        • Farting Bob
        • 3 years ago

        [quote<]AMD doesn't stay in business by winning some benchmark competition. They stay in business by selling products for a profit.[/quote<] Actually its a bit of a mystery how AMD stay in business, the last 10 years it certainly hasnt been by selling stuff for a profit.

        • mesyn191
        • 3 years ago

        They’re ASP’s are already typically worse than $200 I believe so if the mobo was $100 it’d probably be a (minor) step up financially from where they are now.

        Realistically AMD will be selling their top end chips for a fair amount of cash. They always have every time they got close to or met Intel’s or NV’s performance.

        I’m just hoping we get 8C/16T Ryzen’s for under $600 and good AM4 mobo’s for $150-ish. That’d still be a great deal compared to Intel’s top consumer 8C/16T CPU and what a good X99 mobo sells for.

        • christos_thski
        • 3 years ago

        Well they aren’t going to sell all that much if they don’t have competitive SKUs with intel’s ~200 dollar i5s, are they now? How is a 200 dollar SR5 a harmful development for AMD in any way, shape, or form? He wasn’t talking about i5 performance on 50 bucks.

    • tay
    • 3 years ago

    Not sure about all the negativity here. The number is 1 higher than intel. X370. Intel only goues to X270.

      • chuckula
      • 3 years ago

      Why not just make the 270 louder then?

    • Forge
    • 3 years ago

    Jeezus. AMD finally got their thumb out about TDP and core count, and they’re going to cut their own throats AGAIN with a half-assed chipset…. AGAIN.

    Why can AMD never get a kickass CPU to market with a competent chipset supporting it? It’s always one or the other.

      • wingless
      • 3 years ago

      What about this chipset is not satisfactory to you?

        • Amiga500+
        • 3 years ago

        Personally, I’d like to see 4 more SATA ports. But I can live with that as long as there are enough PCIe slots to put an add in card into without leaving myself short there too!

        • End User
        • 3 years ago

        No Thunderbolt 3.

          • Krogoth
          • 3 years ago

          It is because Thunderbolt in itself is an Intel IP.

          The joys of proprietary hardware standards. AMD developed its own low-cost version codename “Lightning Bolt” that is now called Dockport. It is really just an extension of Displayport specs. Sound familiar?

            • End User
            • 3 years ago

            No matter how you slice it AMD is missing out on something big.

            • Delta9
            • 3 years ago

            Motherboard manufacturers can and do add 3rd party controllers to all feature levels of their mainboard line ups. I am sure that finding a board with an additional SATA controller, Alpine Ridge Thunderbolt chip or just about any other type of interface or controller won’t be much of a challenge. Overall it looks like a competent product that has a good amount of indigenous features as well as room for additional expansion by AIB partners.

            • Voldenuit
            • 3 years ago

            Those peripherals are going to have to hang off the available 32 lanes of PCIE, though, and that’s not considering that some of those lanes are probably hard-reserved for GPUs.

            • Delta9
            • 3 years ago

            Alpine Ridge, which would be a good example of a bandwidth sensitive controller, requires 4 lanes of PCIE 3.0 to operate at its advertised speeds. Intel’s 200 series has 20-24 lanes of PCIE 3.0. (4 lanes hang off a switch, I believe.) Manufacturers can also disable certain devices and PCIE slots when certain onboard devices that share lanes are activated. They have been doing it for a while, my P67 mobo has a x4 PCIE slot that is disabled or enabled depending on which USB or SATA controllers (in this case) were turned on or off. I have also seen a few examples of the 200 series chipset that behave the same way. So I am not concerned, there will be all the connectivity,features, and RGB lighting (much like stickers on a Honda, RGB is good for even more better higher performance) to separate you from as much money as they can.

            • Krogoth
            • 3 years ago

            Not really

            Thunderbolt 3 is a professional-tier feature through and through at this time. Intel doesn’t even offer it on their 200 series chipset platform as a standard feature (Not even on Z or Q flavor).

            You are at the mercy of third-party controllers by motherboard vendors.

            • End User
            • 3 years ago

            Holy smokes. Why do you insist on misleading people so much. CES is full of consumer grade laptops that ship with TB3. Such as:

            [url<]http://shop.lenovo.com/us/en/laptops/ideapad/legion-y-series/y720/[/url<] Not to mention what is already out there: [url<]http://www.ultrabookreview.com/10579-laptops-thunderbolt-3/[/url<] TB3 does it all and it is the new hotness. AMD is going to take a major hit in the laptop space without TB3.

            • Krogoth
            • 3 years ago

            Those Thunderbolt 3-equipped laptops in that Lenovo shop are professional-tier stuff with a gaming spin. They are catered towards professionals that want a system that can do real work and gaming at the same time.

            The list in the other page contains a list of professional-tier and “EXTREME GAMING”-tier units in both categories.

            Wake me up when you can pick-up a mainstream laptop/ultra-portable from a B&M that comes with Thunderbolt 3 by default. Intel is at fault for this. They decided to not to include Thunderbolt 3 support as a standard feature set in their current chipset platforms.

            The lack of Thunderbolt 3 support doesn’t hurt AMD as much you like to think either. They aren’t trying to seize the professional market from Intel (AMD needs to work on energy efficiency angle before worrying about feature-sets). USB 3 is more than adequate for non-professional needs as a peripheral interface.

            • End User
            • 3 years ago

            Ah. I see. If you can’t win with your “Pro” narrative you switch to “mainstream”. It is a constantly shifting goal line with you.

            • Krogoth
            • 3 years ago

            Not shifting the goalposts bro. Just stating reality of the marketplace.

            You seem to fail to grasp the simple fact that you are part of a niche (computer hobbyists). You are getting your panties in a bunch over nothing.

            • NTMBK
            • 3 years ago

            Then those laptops have an Alpine Ridge controller soldered onto the motherboard. Intel’s chipset doesn’t provide TB3 natively.

            • mesyn191
            • 3 years ago

            No. TB3 is niche and will likely always be.

            USB3.1 is a much bigger deal. Since they have it on all the chipsets most people will care about they’re fine.

            More PCIe lanes would be nice but nothing at all seems bad about this.

            • Krogoth
            • 3 years ago

            Unless AMD’s workstation/server platforms have less than 40-lanes. I really don’t see PCIe lanes count being a problem on their laptop and mainstream desktop platforms.

            • mesyn191
            • 3 years ago

            Bringing up servers is pointless though. We’re discussing a desktop chip. Their server chip is a different story.

    • derFunkenstein
    • 3 years ago

    That frustratingly-small image of the motherboards doesn’t really let you see how coolers will attach to the board. Will it be the same connector that AMD has used since S939, or will we finally be able to bolt through the mobo directly?

      • chuckula
      • 3 years ago

      There appear to be two plastic pylons on either side of the socket that serve as attachment points for a cooler.

      [url<]http://www.anandtech.com/show/10990/amd-announces-x370-motherboards-for-am4-laying-the-groundwork-for-ryzen[/url<]

        • derFunkenstein
        • 3 years ago

        Ah, yep. Sure does. 😳

          • cmrcmk
          • 3 years ago

          Out of curiosity, what do you find inadequate about the current setup? Are you just wanting more strength for larger coolers or do you feel the current method is unwieldy?

            • derFunkenstein
            • 3 years ago

            I don’t know that it’s inadequate unless you have a couple pounds of copper and aluminum bolted on there (so for CL cooling it’s probably just fine, and same with a typical Hyper 212Evo). Just that plastic tabs are plastic tabs. Bolting through the mobo feels more secure to me. I haven’t had an AMD system in many moons. Last time I did was a Phenom II X2 550 that I had unlocked and had some heavy Scythe cooler on it. I just never quite trusted it, even though it was fine. Plastic breaks, is all.

            • Welch
            • 3 years ago

            I’ve never had their plastic break on me, ever. Granted I see the concern but still prefer the AMD plastic anchors over Intel’s very flimsy plastic push pin/snaps.

            As far as mounting to the mobo direct, I’ve disliked this method the most because it is much more unweildly, sometimes requires removing the mobo to get to mounting if the case doesn’t have cut outs, or you have to fight putting a HS on while it is vertical working around the entire case. Some of the HS/Fan manufacturers don’t include rubber grommets for the supports that get screwed in. If you’re really unlucky and the mobo manufacturer is dump they put traces really close to those mount holes and in some cases right underneath them like the Asus z170 Pro Gaming Aura board I worked on. Nearly ruined the board because 212 Evo had no grommets and a cappy board design.

            As someone once said to me “This ain’t the plastics your parents and grandparents knew”.

            • derFunkenstein
            • 3 years ago

            Oh, absolutely.

            push pins < AMD mounting mechanism < bolt-through mounting

      • Goty
      • 3 years ago

      I’ve heard conflicting reports about whether or not the mounting mechanism will be the same as AM3+ (has is really been the same since S939?!), but I haven’t seen anything suggesting a stock bolt-through mounting mechanism. I’m assuming you can do the usual thing and just replace the stock bracket, though.

        • Concupiscence
        • 3 years ago

        It really has been the same, lo these many years. I took the stock heatsink/fan from an FX-8320 and slapped it onto a friend’s Phenom running in an AM2+ motherboard and had no issues whatsoever.

        • elitech
        • 3 years ago

        [quote<](has is really been the same since S939?!)[/quote<] Indeed. Not even since 939, but since 754, in fact.

          • Krogoth
          • 3 years ago

          Actually the form factor goes back to Socket 940 (a.k.a K8 Sledgehammer)

    • chuckula
    • 3 years ago

    OK, does this information officially (or at least semi-officially) confirm that consumer-grade RyZen parts have 16 lanes of PCIe 3.0 direct to the CPU (similar to Kaby Lake)?

    The rumors were that Ryzen was going to provide 32 lanes direct to the CPU, but these numbers don’t appear to bear that out.

      • RAGEPRO
      • 3 years ago

      It does, yes.

        • chuckula
        • 3 years ago

        🙁

        One possible advantage of RyZen was that it was going to bring more connectivity bandwidth than Intel’s consumer-grade boards to the table at prices that were hopefully somewhat lower than the X99 platform. It looks like we are at parity instead.

          • AnotherReader
          • 3 years ago

          Yeah that lack of PCIe lanes is definitely a bummer.

            • crunchbite
            • 3 years ago

            32 PCIe lanes isn’t exactly a small amount, that’s similar to what was available on the Z170 platform. AMD isn’t really competing with insane systems on the x99 chipset, they’re more worried about the mainstream stuff like Z170 or Z270.

      • derFunkenstein
      • 3 years ago

      That’s where my eyes went, too. I’m of two minds. It could be that this a pretty disappointing number for what’s supposed to be top-of-the-line, but it could also mean that Ryzen is going to be cheaper than we thought since it lacks the connectivity required for a very-high-end desktop system. Or it could mean neither. Speculating is fun!

        • derFunkenstein
        • 3 years ago

        It also looks like it could have 20 lanes, depending on the motherboard, with an x4 NVMe device not having to go over a bridge.

          • mczak
          • 3 years ago

          Which is very important, since the pcie connectivity of the chipset is essentially useless for NVMe SSDs anyway (contrary to what the summary states, only the 8 + 8 (for graphics) + the potential 4 pcie lanes from the cpu are gen 3, the 8 from the chipset are only gen 2 (it says so right in the picture)). The chipset only supporting pcie 2.0 is imho a bit disappointing, especially considering that intel moved to pcie 3.0 lanes since 100-series (haswell) chipsets (albeit not on some low-end parts).

            • derFunkenstein
            • 3 years ago

            Right. On a Kaby Lake system, NVMe devices will be fighting for the same DMI 3.0 bandwidth as Gigabit Ethernet, audio, and whatever other extra goodies the motherboard manufacturer puts on the board. Hopefully there will be at least a few motherboards that don’t waste those four lanes on SATA connectors that could just as easily be satisfied by the chipset.

      • NTMBK
      • 3 years ago

      The MCM server parts might have 32 lanes to the CPU (16 from each die), but it doesn’t look like the consumer part will.

        • Waco
        • 3 years ago

        The MCM server parts are supposed to have 128 lanes with 4 dies. I was really hoping to see 32 lanes for PCIe slots from the consumer parts…there goes one of my motivations for buying Zen. 🙁

          • Welch
          • 3 years ago

          Out of curiosity, what were you hoping to populate the 32 lanes with?

            • derFunkenstein
            • 3 years ago

            Probably dual GPUs.

            • Waco
            • 3 years ago

            A full speed PCIe GPU and a couple of additional cards without stealing PCIe bandwidth from the GPU.

            I’m annoyed that I have to sacrifice GPU bandwidth to utilize more slots. As it sits now (6700K) I have to run my GPU at x8, which sure, doesn’t hurt much, but at 4K it’s measurable.

      • Andrew Lauritzen
      • 3 years ago

      Yeah it’s interesting. With dual channel memory, relatively small caches (is that 2MB LLC TOTAL on the 4c parts?? That must be per core, right?) and fairly few PCIe lanes it’s much more like the consumer chips than X99. I had sort of hoped that it would at least be similar to X99 given that chipset is >2 years old now.

      That said I’m also fine with the potential upside of this costing closer to the consumer parts then the LGA2011 ones. I’m still hesitant to believe that, but here’s to hoping! If I had to guess 8C parts are still going to be $400-500, but if they come in cheaper than that that’ll be awesome.

        • chuckula
        • 3 years ago

        They have a relatively big overall cache size (almost as big as the Broadwell-E parts). An 8 core Zen has a total of 16 MB of L3 in two different 8MB pools that each serve 4 cores. The cores themselves each get 512KB of L2, which is easier for AMD to do since they L3 caches are non-inclusive so there’s no duplication hit for a larger L2.

        Overall it’s just a hair smaller than Broadwell-E and massively larger than the caches in a consumer-grade part like a 7700K.

          • Andrew Lauritzen
          • 3 years ago

          Yeah looking over this again the 8C parts seem sensible (512KB/core L2 + 2MB/core L3, similar to Intel). It’s that the 4C parts are listed as just “2MB” that is totally confusing and seems like it must be wrong.

          What’s the source of that table/image?

            • chuckula
            • 3 years ago

            That’s because the “4 core” parts have nothing to do with Zen. They are those recycled Bristol Ridge APUs that are actually cut down versions of Kaveri (even less L2 cache, only half the PCIe, etc.) from way back when.

            • Andrew Lauritzen
            • 3 years ago

            Ohhh okay. That’s – uhh – extremely confusing to say the least 🙂 Thanks for the clarification.

            • RAGEPRO
            • 3 years ago

            Slides from AMD.

            Keep in mind the 7th Gen APU bits are the Carrizo-derived Bulldozer-family parts that already came out, Bristol Ridge.

        • faramir
        • 3 years ago

        Note that those 4C CPU parts are from the “7th gen APU” category which are Bristol Ridge chips (the ones with defective/disabled GPU are likely to end up as “Athlon CPUs”).

        Ryzen 4C (= single CCX) chips should have L3 cache enabled.

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