Intel Confirms Coyote Cove P-Core & Arctic Wolf E-Core For Nova Lake “Core Ultra 400” CPUs, Panther Cove P-Cores For Diamond Rapids “Xeon 7”

Intel has confirmed the core architectures for its next-gen Nova Lake & Diamond Rapids CPUs, with Coyote Cove & Panther Cove P-Cores.

Intel Nova Lake CPUs Utilize Coyote Cove P-Cores, While Diamond Rapids Utilizes Panther Cove P-Cores

Intel has released the 59th Edition of the ISA Extensions Reference, which includes details of its next-gen architectures powering the Nova Lake client and Diamond Rapids server processors. Both of these CPUs are expected to launch next year, so it's good to see that we finally have a confirmation regarding the P-Core and E-Core architectures they would leverage.

On the client side, Intel is expected to launch Nova Lake CPUs in the second half of 2026. These chips will target both desktop and mobile platforms. We have already seen a lot of information regarding the chips leak out, but Intel is now officially confirming that the lineup will feature Coyote Cove P-Cores & Arctic Wolf E-Cores. These will be the successors to the Cougar Cove P-Core and Darkmont E-Core architecture that will soon be introduced on Panther Lake CPUs. So we can expect some big changes, IPC uplifts, and perf/watt optimizations.

Intel Client P-Core & E-Core Architectures:

Intel CPU Family	P-Core Architecture	E-Core Architecture
Alder Lake	Golden Cove	Gracemont
Raptor Lake	Raptor Cove	Gracemont
Raptor Lake Refresh	Raptor Cove	Gracemont
Meteor Lake	Redwood Cove	Crestmont
Arrow Lake	Lion Cove	Skymont
Arrow Lake Refresh	Lion Cove	Skymont
Lunar Lake	Lion Cove	Skymont
Panther Lake	Cougar Cove	Darkmont
Nova Lake	Coyote Cove	Arctic Wolf
Razer Lake	TBA	TBA

The Intel Nova Lake-S Desktop CPU family is expected to pack up to 52 cores, while the Nova Lake mobile lineup is expected to pack as many as 28 cores on the HX platform. Besides this, the chips will also pack a next-gen graphics tile, based on the Xe3 architecture. The desktop family will be supported on the newer LGA 1954 socket, so we can expect platform-side upgrades too.

#Intel released the 59th edition of the ISA Extensions Reference with some #PantherCove, #CoyoteCove and #ArcticWolf microarchitecture details#DiamondRapids #NovaLake #WildcatLake

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For servers, Intel is preparing its next-gen Diamond Rapids CPUs, and these will feature the Panther Cove P-Core architecture. This is a slight update on the Cougar Cove P-Cores, which will be introduced on Panther Lake chips. These chips will pack up to 256 cores and arrive by 2H 2026. These chips won't get SMT support since they are based on Panther Cove P-Cores, but the follow-up, Coral Rapids, will bring back SMT capabilities as Intel acknowledged that removing SMT was a mistake for the datacenter CPU segment.

Also, there are rumors that a high-performance variant of Panther Cove, Panther Cove-X, can be aimed at the workstation segment, though we don't have more concrete information on that right now. Lastly, Intel also confirmed its Wildcat Lake entry-level chips. These chips will replace the current Twin Lake platforms and feature entry-level designs with Cougar Cove P-Cores and Darkmont E-Cores.

Intel Server P-Core & E-Core Architectures:

Intel CPU Family	P-Core Architecture	E-Core Architecture
Sapphire Rapids	Golden Cove	N/A
Emerald Rapids	Raptor Cove	N/A
Sierra Forest	N/A	Gracemont+
Granite Rapids	Redwood Cove	N/A
Clearwater Forest	N/A	Darkmont
Diamond Rapids	Panther Cove	N/A
Coral Rapids	TBD	N/A

The Intel Nova Lake CPUs will compete against AMD's Zen 6 "Ryzen" lineup while Diamond Rapids will tackle the Zen 6-based EPYC family in the server segment, so 2026 is going to be another heated battle between the two CPU makers.

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