I/O Tile: Extended and Scalable Depending on Segment

The smallest of Meteor Lake's tiles is the I/O tile, which is primarily designed to offer additional connectivity features. This, of course, is down to two things; specific vendor's needs and the grade of processor itself. As Meteor Lake is scalable, the I/O tile is perhaps the crux of enabling specific features such as Thunderbolt 4 on devices. A lower-end Intel Core 3 Meteor Lake chip is likely to drop flashy I/O-specific features such as TB4 to save on cost, as entry-level notebooks aren't going to use it.

The higher end of the Meteor Lake product stack will feature Thunderbolt 4, and although it will be on the I/O tile for notebook vendors to utilize, having a scalable I/O fabric allows Intel to implement a modular approach to I/O features instead of one that is more one size fits all. The I/O tile includes additional PCIe lanes, but this number will vary depending on the processor itself; a higher-end chip will have more for additional storage needs, whereas a lower-end chip will have the minimum for connectivity and whatnot. Something else is that the I/O tile isn't a PCIe Coherent Fabric, which means data can only be transferred without the support for cache coherency between memory and devices.

SoC Tile, Part 3: Disaggregating Xe Media and Display Engine From Graphics Graphics Tile: New Xe-LPG Arc Based Integrated GPU
Comments Locked

107 Comments

View All Comments

  • PeachNCream - Thursday, September 21, 2023 - link

    Nice trolling lemur! You landed like an entire page of nerd rage this time. You're a credit to your profession and if I could give you an award for whipping dead website readers into a frenzy (including regulars who have seen you do this for years now) I would. Congrats! 10/10 would enjoy again.
  • IUU - Thursday, September 28, 2023 - link

    Intel does not need to do anything about its architecture to to match or surpass m3. It just needs to build its cpus on a similar node. Which is not happening anytime soon, thus perpetuating the illusion of efficiency of apple cpus.

    Two things more. First it is hilarious to compare the prowess of Intel on designing cpus to that of Apple. Apple has long time "building" machines like a glorified Dell borrowing cpus from IBM or Intel and only recently understood the scale and effort needed to design your silicon by improving on ARM designs.

    Secondly, it is misguided to say that if a cpu needs 10 times more wattage on the same node to achieve 2 or 3 times the performance is less efficient. This is not how physics works . If Intel built their cpus on N3 of tsmc they would be 2 or 3 times faster best case scenario. Wattage does not scale linearly with performance. This is the same as saying that a car that has 10 times the power would be 10 times faster. Lololol.

    Apple designs good cpus recently , but all the hype about its efficiency is just hype. Even if we assume the design is totally coming from Apple , which it doe not, being a very good modification at best, it does not even build its nodes. By large its efficiency is TSMC efficiency. If it were not for TSMC Apple would be non existent on the performance charts.
  • Silma - Tuesday, September 19, 2023 - link

    TLDR:
    - Intel 4 < TSMC N6
    - To not be late, Intel 3 must arrive within 3 months,which is highly doubtful, since Intel 4 isn't even shipping yet
    - I assume Intel 3 < TSMC N6, otherwise, why bother enriching the competition?
    - Parts of the new tech stack looks promising, but Intel refrains from any real performance claims, or any comparison with offerings from AMD or Apple.
    - Did Intel announce another architecture for desktop computers, probably more similar to that of AMD, e.g. perhaps many performance tiles plus one cache tile?
  • Drumsticks - Tuesday, September 19, 2023 - link

    Maybe. Or maybe TSMC6 is cheaper, and Intel doesn't need the power savings or area savings of I4 over TSMC6 for what the non-compute tiles need to accomplish. It's not exactly uncommon to see the SoC / IO tile on a lower node, doesn't AMD do the same thing?
  • Roy2002 - Tuesday, September 19, 2023 - link

    Intel 4 and 3 are basically the same with the same device density as 3 is enhanced 4. I assume it has slightly higher density value than TSMC 5nm and performance is slightly better. Let's see.
  • kwohlt - Tuesday, September 19, 2023 - link

    Intel 4 is not library complete. It can't be used for the SoC tile.
  • sutamatamasu - Tuesday, September 19, 2023 - link

    I wonder if current processor have an dedicated NPU, then what the heck happen with GNA?

    It still in there or they're remove it?
  • Exotica - Tuesday, September 19, 2023 - link

    Intel should've either implemented TB5 in Meteor Lake or waited until after Meteor Lake shipped to announce TB5. Because as cool and impressive as meteor lake seems, for some of us, it's already obsolete in that it makes no sense to buy a TB4 laptop/PC and instead wait on TB5 silicon to hit the market.
  • FWhitTrampoline - Tuesday, September 19, 2023 - link

    Why use TB4 or USB4/40Gbs and have to deal with the extra latency and bandwidth robbing overhead compared to PCI-SIG's OCuLink that's just pure PCIe signalling delivered over an external OCuLink Cable. OCuLink and PCIe requires no extra protocol encapsulation and encoding/decoding steps at the PCIe link stage so that's lower latency there compared to USB4/TB4 and later generations that have to have extra encoding/decoding of any PCIe protocol packets to send that out over TB4/USB4. And for external GPUs 4 lanes of PCIe 4.0 connectivity can provide up to 64Gbs of bandwidth over an OCuLink port/cable and OCuLonk ports can be 8 PCIe lanes and wider there.

    Once can obtain an M.2/NVMe slot to OCuLink adapter and get an external OCuLink connection of up to 64Gbs as long as the M.2 is 4, PCIe 4.0 lanes wide and no specialized controller chip required on the MB to drive that. And GPD on their Handhelds offers a dedicated OCuLiink port and an external portable eGPU that supports OCuLink or USB4/40Gbs-TB interfacing. TB5 and USB4-V2 will take years to be adopted whereas OCuLink is just PCIe 3.0/4.0 there delivered over an external cable.
  • Exotica - Tuesday, September 19, 2023 - link

    Unlike thunderbolt, Occulink doesn't have hotplugging, meaning your device must be connected at cold boot. Not so good for external storage needs.

Log in

Don't have an account? Sign up now