During a time of increased competitor activity, Intel has decided to disclose some of the high level details surrounding its next generation consumer processor, known as Rocket Lake or Intel’s 11th Gen Core. The new processor family is due in the market in the first quarter of 2021, and is expected to share a socket and motherboard compatibility with the current 10th Gen Comet Lake processors, providing an upgrade path even for those with a Core i9-10900K, Intel’s highest performing desktop processor to date. New 500-series motherboards are also expected to be available.

The new Rocket Lake-S silicon or SoC is going to be known as ‘Cypress Cove’. Intel confuses itself in the press release compared to the PDF presentation, as the press release dictates that this isn’t the core – it specifically states that the core microarchitecture is Ice Lake (Sunny Cove). However the presentation PDF says Cypress Cove is the core. In this instance, to be clear, Sunny Cove and Cypress Cove are set to be practically identical, however Sunny Cove is on 10nm and Cypress Cove is the back-ported variant on 14nm.

Paired with these cores will be the Tiger Lake graphics architecture, known as Xe-LP, which is also being backported from 10nm to 14nm for this product. The combined 14nm representation of Ice Lake cores and Xe-LP graphics is what is going to be known as Rocket Lake, (at least one of) the SoC(s) of the 11th Gen Core family.

With the new processors, Intel is targeting a raw instruction-per-clock uplift in the double digit range, which would be similar to the uplift we saw moving from Comet Lake to Intel’s Ice Lake mobile processors. Because of the node difference, the exact IPC change is likely to be lower than what we’ve seen before, but 10%+ is still highly respectable, especially if Intel is also able to maintain the high frequency it has achieved with the current generation of Comet Lake.

One of the benefits of moving to a back-ported Sunny Cove core will be the inclusion of the AVX-512 vector acceleration unit in Cypress Cove. This enables Intel to enable its library of Deep Learning Boost technologies for AI and ML acceleration, including support for Vector Neural Network Instructions (VNNI), finally bringing AVX-512 to the desktop platform.

However, to mix and match the right combination of core count, graphics, and AVX-512 for die size/yield/cost, it appears that Rocket Lake-S will only offer a maximum of eight cores in its largest configuration. Within the press release PDF, Intel stated that the current silicon as tested is rated for 125 W TDP, with a top turbo boost of 250 W, which matches what we see on the Core i9-10900K already. There’s no escaping the performance-per-watt characteristics of the process node, which indicates that Intel might find hitting those high frequencies a little easier with fewer cores to deal with. Intel is also promoting new overclocking tools with Rocket Lake, however did not go into details.

Another feature that Intel has disclosed with Rocket Lake is the move to PCIe Gen 4.0 on the processor, with up to 20 lanes available. These are likely to be split into one x16 for graphics and one x4 for storage on most motherboards, and this aligns with what we’ve seen on the latest generation of Intel Z490 motherboards, some of which have already promoted support for PCIe 4.0 ‘on future Intel processors’. This means Rocket Lake. Intel also mentions that the memory controller now supports up to DDR4-3200, however the projected performance numbers were done with DDR4-2933 memory.

On the graphics side, moving to the Xe-LP graphics architecture is going to be a big uplift in graphics performance, with Intel suggesting a 50% improvement over current Comet Lake integrated graphics. It is worth noting here in the slide that Intel mentions ‘UHD Graphics ft Xe Graphics Architecture’ – this would perhaps point to a scaled down version of Xe compared to Tiger Lake. I’m fully expecting to see only 32 EUs here, as a balance between die area, power, and performance. In the fine print it suggests that there will be some versions of Rocket Lake without the integrated graphics enabled, similar to the F processors we see on the market today.

That being said, for those units with integrated graphics, Intel is promoting new media encoders and display resolution support, with up to 4K60 12-bit for 4:4:4 HEVC and VP9, or up to 4K60 with 10-bit 4:2:0 AV1, showcasing AV1 support for mainstream processors. Display resolution support has also increased, with up to three 4K60 displays or two 5K60 displays, supporting DP 1.4a (with HBR3) and HDMI 2.0b.

This was an unexpected news announcement this morning - speaking to peers it all seems to be a bit of a surprise - perhaps even for the PR teams, given that the system configurations as 'projected' in the slide above is dated 6th August, almost 3 months ago. It will be interesting to hear if Intel will disclose more details ahead of launch.

Source: Intel

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  • drothgery - Friday, October 30, 2020 - link

    Erm... that's not true. They released two CPUs this summer. https://ark.intel.com/content/www/us/en/ark/produc...

    And you can buy things with them in it now; here's just the first thing that came up on a search by the CPU name + laptop for me:
  • Santoval - Friday, October 30, 2020 - link

    That's Lakefield, which is a very special case; almost an Intel experiment really. It is technically a 5-core SoC but the 5th "big" Sunny Cove core is barely ever employed due to strict thermal limitations. AnandTech covered it and found that unlike what one might expect the "big" core cannot be used to accelerate single threaded code. It is only used (when thermals allow it) for "fast responsiveness".
    In other words the 95+% of the work is done by the 4 small Tremont cores. As a result, while the power efficiency is rather high, the performance is *quite* poor. For more read this article :
  • Spunjji - Monday, November 2, 2020 - link

    I knew they'd *launched* Lakefield, but until you sent that link I hadn't seen any evidence for availability of a single product that actually *used* it. I'm based in the UK, for the record.

    Just checked and, yeah, searching "core i5-l16g7 laptop" doesn't return an actual product for sale until you get to the 7th result, which turns out the be the same results as the 8th and 9th - that one Samsung product available from BestBuy and quoted in USD, for which there are no reviews available.

    Some release! :D
  • Spunjji - Monday, November 2, 2020 - link

    FYI, "just the first thing" only works as a rhetorical device when there are *other things*. If not, then it's not the "first thing" - it's the *only* thing. After 5 pages into Google and only seeing the Galaxy Book, I stand by my initial assessment of it basically being a paper launch.
  • Santoval - Friday, October 30, 2020 - link

    Of course they couldn't. Their 10nm yields at large die sizes and/or high clocks are still poor, and an S-series desktop requires *both* a rather large die size and high clocks, so it's the worst of both worlds (Ice Lake Xeon CPUs have even larger dies but their clocks are quite lower; besides, Intel can well afford the lower yields due to the obscene prices they will charge for them; on the other hand we still have not seen any Ice Lake Xeons released either..).

    Intel hope to fix their yield and clock issues with the third revision of their 10nm process node with which they will fab Alder Lake, their "first top to bottom" 10nm product. That node variant is clearly not ready yet, otherwise Intel would employ it to fab Alder Lake and actually compete with AMD in both performance and efficiency. With Rocket Lake they are (once again) ditching efficiency and will only compete in performance, probably barely..
  • Santoval - Friday, October 30, 2020 - link

    Their 10nm++ / SuperFin Gen 2 (formerly 10nm+++) process node is still not mature enough to deliver the yields they want at the clocks they want. If Intel did not release Rocket Lake they would lack any option to compete with Zen 3 for 6 to 8 months, since Comet Lake's ancient Skylake μarch can no longer cut it.
    Rocket Lake is stop gap solution until they are ready to release their actual competitive product, Alder Lake, targeted at the idiots who pray to and swear by Intel's gods and, as long as they have an "Intel Inside" CPU, they wouldn't mind if they burnt 2 to 3 times the power for roughly (within a range of +/-5% at best) the same performance.
  • Spunjji - Monday, November 2, 2020 - link

    I have indeed seen plenty of these idiots posting to various forums proclaiming how they were a genius for buying the utter rubbish that is Comet Lake, because they can "upgrade" to Rocket and get "the best gaming performance" again. All at the low, low price of 250W!
  • beginner99 - Friday, October 30, 2020 - link

    Why is this non-info post not just a pipeline story? Very suspicious at least to say...Either AT gets paid by intel or their tactics with this useless non.info fully worked.
  • Spunjji - Friday, October 30, 2020 - link

    Is this some kind of weird reverse-psychology making-the-AMD-fanboys-look-bad thing, or are there really several commenters who are deluded enough to think that Anandtech take Intel bungs?
  • hanselltc - Friday, October 30, 2020 - link

    AV1 Encode for reals or nah?

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