more lakes — Intel details new Lunar Lake CPUs that will go up against AMD, Qualcomm, and Apple Lunar Lake returns to a more conventional-looking design for Intel.

Andrew Cunningham – Jun 4, 2024 3:00 am UTC Enlarge / A high-level breakdown of Intel’s next-gen Lunar Lake chips, which preserve some of Meteor Lake’s changes while reverting others.Intel reader comments 54

Given its recent manufacturing troubles, a resurgent AMD, an incursion from Qualcomm, and Apples shift from customer to competitor, its been a rough few years for Intels processors. Computer buyers have more viable options than they have in many years, and in many ways the companys Meteor Lake architecture was more interesting as a technical achievement than it was as an upgrade for previous-generation Raptor Lake processors.

But even given all of that, Intel still provides the vast majority of PC CPUsnearly four-fifths of all computer CPUs sold are Intels, according to recent analyst estimates from Canalys. The company still casts a long shadow, and what it does still helps set the pace for the rest of the industry. Further ReadingIntels biggest laptop CPU update in years is a huge departure from past designs

Enter its next-generation CPU architecture, codenamed Lunar Lake. Weve known about Lunar Lake for a whileIntel reminded everyone it was coming when Qualcomm upstaged it during Microsofts Copilot+ PC revealbut this month at Computex the company is going into more detail ahead of availability sometime in Q3 of 2024.

Lunar Lake will be Intels first processor with a neural processing unit (NPU) that meets Microsofts Copilot+ PC requirements. But looking beyond the endless flow of AI news, it also includes upgraded architectures for its P-cores and E-cores, a next-generation GPU architecture, and some packaging changes that simultaneously build on and revert many of the dramatic changes Intel made for Meteor Lake.

Intel didnt have more information to share on Arrow Lake, the architecture that will bring Meteor Lakes big changes to socketed desktop motherboards for the first time. But Intel says that Arrow Lake is still on track for release in Q4 of 2024, and it could be announced at Intels annual Innovation event in late September. Building on Meteor Lake Enlarge / Lunar Lake continues to use a mix of P-cores and E-cores, which allow the chip to handle a mix of low-intensity and high-performance workloads without using more power than necessary.Intel

Lunar Lake shares a few things in common with Meteor Lake, including a chiplet-based design that combines multiple silicon dies into one big one with Intels Foveros packaging technology. But in some ways Lunar Lake is simpler and less weird than Meteor Lake, with fewer chiplets and a more conventional design. Advertisement

Meteor Lakes components were spread across four tiles: a compute tile that was mainly for the CPU cores, a TSMC-manufactured graphics tile for the GPU rendering hardware, an IO tile to handle things like PCI Express and Thunderbolt connectivity, and a grab-bag SoC tile with a couple of additional CPU cores, the media encoding and decoding engine, display connectivity, and the NPU. Further ReadingIntel intros first Meteor Lake chips with faster GPUs and worse single-core speed

Lunar Lake only has two functional tiles, plus a small filler tile that seems to exist solely so that the Lunar Lake silicon die can be a perfect rectangle once its all packaged together. The compute tile combines all of the processors P-cores and E-cores, the GPU, the NPU, the display outputs, and the media encoding and decoding engine. And the platform controller tile handles wired and wireless connectivity, including PCIe and USB, Thunderbolt 4, and Wi-Fi 7 and Bluetooth 5.4.

This is essentially the same split that Intel has used for laptop chips for years and years: one chipset die and one die for the CPU, GPU, and everything else. Its just that now, those two chips are part of the same silicon die, rather than separate dies on the same processor package. In retrospect it seems like some of Meteor Lakes most noticeable design departuresthe division of GPU-related functions among different tiles, the presence of additional CPU cores inside of the SoC tilewere things Intel had to do to work around the fact that another company was actually manufacturing most of the GPU. Given the opportunity, Intel has returned to a more recognizable assemblage of components. Enlarge / Intel is shifting to on-package RAM for Meteor Lake, something Apple also uses for its M-series chips.Intel

Another big packaging change is that Intel is integrating RAM into the CPU package for Lunar Lake, rather than having it installed separately on the motherboard. Intel says this uses 40 percent less power, since it shortens the distance data needs to travel. It also saves motherboard space, which can either be used for other components, to make systems smaller, or to make more room for battery. Apple also uses on-package memory for its M-series chips.

Intel says that Lunar Lake chips can include up to 32GB of LPDDR5x memory. The downside is that this on-package memory precludes the usage of separate Compression-Attached Memory Modules, which combine many of the benefits of traditional upgradable DIMM modules and soldered-down laptop memory. Page: 1 2 Next → reader comments 54 Andrew Cunningham Andrew is a Senior Technology Reporter at Ars Technica, with a focus on consumer tech including computer hardware and in-depth reviews of operating systems like Windows and macOS. Andrew lives in Philadelphia and co-hosts a weekly book podcast called Overdue. Advertisement Channel Ars Technica ← Previous story Related Stories Today on Ars