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Intel takes on Ryzen with Rocket Lake S and the Core i9-11900K

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Intel’s Core i9-11900Ok is quicker than AMD’s Ryzen 5900X, Intel says. But Intel aloof has plenty to chat about with its original Rocket Lake S desktop Core chips.

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Intel debuted its subsequent-expertise 11th-gen “Rocket Lake S” desktop Core chips at CES 2021 on Monday, boasting that its flagship Core i9-11900Ok processor offers a 19 percent performance whisper over the prior expertise, and with gaming performance that competitors AMD’s most highly effective Ryzen chip.

Intel’s Core i9-11900Ok does eradicate a step support: Intel’s 10th-gen Core i9-10900Ok equipped 10 cores and 20 threads. The original i9-11900Ok wields factual 8 cores and 16 threads as an different, at turbo quickens to 5.3 GHz (single core) and a slower 4.8GHz (all cores) than the i9-10900Ok equipped. It’s also a 14-nanometer chip. But there are refined, necessary improvements, too: a brand original, wider, 8-lane DMI interface between the processor and chipset, and an elevated 20 lanes of PCIe 4.0 off the CPU for GPUs and SSD storage, matching the PCIe 4.0 capabilities that AMD has equipped for the final two Ryzen generations. All told, Intel’s promising up to a 19 percent IPC (instruction per clock) whisper and a 50 percent boost in built-in graphics performance, thanks to the original, built-in Xe GPU core.

Intel said that the Core i9-11900Ok will be on hand later this quarter, at an undisclosed ticket. Fortuitously, though a brand original 500-series motherboard chipset will be launched alongside it, the i9-11900Ok will be backwards-like minded with existing 400-series motherboards. 

Intel 11th gen desktop Intel

A summary of Intel’s original Rocket Lake-S platform.

Intel’s Gregory Bryant, govt vice chairman and fashioned manager of Intel’s Consumer Computing Crew, also showed off a transient sneak preview of the subsequent-expertise Alder Lake hybrid chip, too. Alder Lake will mix “Golden Cove” Core cores and Gracemont Atom cores in a hybrid in discovering. Bryant also said that this can debut on an “enhanced” 10nm SuperFin course of.

Rocket Lake…but in 14nm

Lots of the aspects of Rocket Lake-S were known since final October, when Intel confirmed the existence of Rocket Lake and its original CPU structure, code-named Cypress Cove. What we didn’t know turned into once whether or not the original chip would comprise Intel’s most up-to-date 10nm course of or be manufactured on the comparatively aged 14nm line. Successfully, now we know: it’s a 14nm chip, which also explains the drop in core depend, acknowledged Brandt Guttridge, Intel’s senior director of the Desktop Merchandise Crew. The Cypress Cove CPU core at the initiating designed for 10nm turned into once backported to the 14nm expertise, he said.

“I deem one in every of the questions quite a lot of you possess got factual away is, Why are you going from ten to eight cores? “ Guttridge said. “The reply to that quiz in fact goes support to…our focus turned into once on maximizing right world performance, which is a combination of frequency and IPC [instructions per clock]. So as we looked at the microarchitecture, we ported the 10nm in discovering for every the CPU and the graphics support to the 14nm manufacturing node. As the 10nm in discovering has smaller transistors and the 14nm is a itsy-bitsy greater discipline, primarily the most core depend we’d match on Rocket Lake turned into once eight.”

Intel core i9 11900k overview Intel

That is as worthy as we know of the details of the Core i9-11900Ok.

Different side influencing Intel’s desire turned into once that intriguing to 14nm allowed the company to eradicate ideally suited thing about the SuperFIN transistor that Intel added to Tiger Lake. Remaining year, Ruth Mind, an Intel fellow focusing on expertise pattern and interconnects, said the sum total of all of the intranode improvements made within the 14nm generations would be equaled by the one intranode performance develop from Ice Lake to Tiger Lake, by skill of SuperFIN. 

“That trade off we obtained turned into once that 19 percent IPC create… and the 50 percent graphics whisper,” Guttridge said. “So again, the level of passion right here turned into once on maximizing performance for for the cease customers within the right world.” 

Intel didn’t specify whether or not Rocket Lake S formally involves DMI 4.0, though Guttridge confirmed that the interface now doubles the on hand lanes from four to eight. The Mumble Media Interface connects the CPU and north bridge of the chipset to the PCH or south bridge. Intel’s Skylake processor, geared up with DMI 3.0, turned into once the foremost to consist of a total of 4 lanes. Guttridge confirmed that Rocket Lake S offers eight lanes, doubling the bandwidth, that contrivance that Intel has kept the hyperlink bustle fixed. 

intel core i9 11900k gaming Intel

Intel believes that the Core i9-11900Ok will give AMD’s Ryzen a depart for its money. At press time, the configuration of the machine Intel aged in preparing this take a look at wasn’t on hand. 

In terms of gaming performance, Intel claims that Rocket Lake-S can also aloof enhance performance by about 7 percent on IO Interactive’s unreleased Hitman 3, running on high of the game’s built-in benchmark. Intel also claimed that the Core i9-11900Ok a itsy-bitsy outperformed the AMD Ryzen 5900X on several high-tier video games, from Total Struggle: Three Kingdoms to Cyberpunk 2077 to Glance Canines: Legion to Assassin’s Creed: Valhalla, all running at 1080p and High settings or above. However, Intel didn’t publish the configurations of its gaming tests by press time.

Since the Core i9-11900Ok is more of an introduction, in desire to a start, we save not need the identical outdated “speeds and feeds” matrix describing the snide clock speeds and turbo clock speeds are at various levels, and so on. We also do not know what number of EUs are piece of the 11900Ok, either. 

Guttridge did state some more of the decisions Intel made on picking the Rocket Lake S aspects that Intel had beforehand revealed. Customers had asked for quicker memory, prompting Intel to transfer from DDR4-2933 on “Comet Lake” to the DDR4-3200 memory aged by Rocket Lake S. Racy from 16 lanes of PCI Enlighten 3.0 to 20 lanes of PCI Enlighten 4.0 also allowed enough lanes for every a 4-lane PCIe SSD, moreover to the 16 lanes aged by the most up-to-date GPU. Rocket Lake-S also involves hardware decode toughen for AV1 (and movies kept within the AVIF file structure) which compresses files 50 percent more effectively than the x254 foremost profile, decreasing bandwidth wishes for those that use it. USB 3.2 Gen 2×2 will enhance the on hand USB bandwidth from 10Gbps to 20Gbps overall.

Rocket Lake-S also involves repeatedly-on Intel Snappily Sync Video, which Guttridge says now works concurrently with the built-in GPU. Previously, most effective one desktop GPU (either the built-in GPU or the discrete GPU) can also very neatly be on at a single time. Now, each can also furthermore be active, permitting the discrete GPU to be wholly purposed on rendering a game, for instance, whereas the built-in GPU encodes the output for streaming video.

What we don’t know: chipset little print, overclocking 

What we don’t know involves what Intel is doing specifically with overclocking in thoughts. Guttridge promised Intel would possess more to portion on overclocking capabilities closer to start out, as the company plans to “push the boundaries on handing over customization tunability and optimizations to our cease customers.”

We also don’t possess real, specific little print on the original 500-series motherboard chipsets that can start with Rocket Lake-S, though the chip will be ready to be aged with the older 400-series chipsets—at least theoretically.  Guttridge rapid that buyers contact motherboard distributors and verify that “PCI Enlighten 4.0-entertaining” motherboards can possess the skill turned on and the factual BIOS installed. Guttridge said that the trade within the DMI interface won’t affect the backwards compatibility of the Rocket Lake-S chip.

Board makers, on the opposite hand, possess begun spilling the beans. We all know that there’ll be at least three chipsets: the Z590, H570, B560 and H510. Asus said that the ROG Maximus XIII Z590 board will consist of a pair of Thunderbolt 4 ports, one in every of the few specs we know for the time being.

One processor that Intel didn’t compare itself to turned into once Apple’s M1, the ARM chip that can change the Core i7 and Core i9 correct through the MacBook and different devices. Ryan Shrout of Intel’s competitive performance crew summed up Intel’s stance: “I’d whisper, you know, Apple did an improbable job on their processor.”

Soundless, Shrout added, there’s room for Intel to compete. “In fact that our testing reveals there are a colossal choice of areas of management for our 11th-gen Tiger Lake merchandise all over productivity, articulate material advent, and especially gaming,” he said.

Up so far at 2: 57 PM with extra little print of Intel’s 500-series chipsets.

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As PCWorld’s senior editor, Designate specializes in Microsoft news and chip expertise, amongst different beats.

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