Intel’s Next-Gen Panther Lake Configurations Revealed: Up To 16 CPU & 12 Xe3 “Celestial” GPU Cores

The core configurations of Intel's next-gen Panther Lake CPUs have been revealed in a new Coreboot patch which shows up to 16 cores.

Intel's next-gen Panther Lake CPUs will be the follow-up to the Arrow Lake and Lunar Lake "Core Ultra 200" lineup which will make its first debut in the coming months. The upcoming CPUs will be utilizing three brand new architectures, the Lion Cove P-Cores, Skymont E-Cores, and Xe2 graphics cores. The Panther Lake CPUs will debut as the "Core Ultra 300" lineup and are planned for a 2H 2025 release.

We know a few bits and pieces about Panther Lake so far but it looks like more information on the specific configurations has been revealed in a Coreboot patch which details four different Panther Lake SKUs. It is known that Panther Lake CPUs will leverage Cougar Cove P-Cores and Skymont E-Cores though the Skymont E-Cores featured on Panther Lake will be an optimization or even an update so it is highly likely that we will see the naming of the E-Cores change close to the debut of the chips.

On the GPU side, Intel's Panther Lake CPUs will feature the third major Xe architecture update in the form of Xe3 which is codenamed Celestial and will be the direct follow-up to Xe2 "Battlemage" architecture. Intel's Xe2 architecture will make its first debut on the Lunar Lake SoCs while discrete products are expected to launch later this year.

So coming to the SKUs, there are four chips mentioned in Panther Lake-H and Panther Lake-U flavors. These include the following:

The Intel Panther Lake-H CPUs will be configured in 25-45W TDPs and feature a mix of 16 and 12-core variants. The 45W chip is a 12-core part (4P+8E) and features just 4 Xe3 cores while the other two SKUs incorporate 16 cores (4P+8E+4LPE) and come in 12 Xe3 and 4 Xe3 variants. Both SKUs are set at a TDP of 25W. Lastly, there's the Panther Lake-U SKU which features an 8-core configuration with 4P and 4E cores and 4 Xe3 cores while being rated at a TDP of 15W.

Currently, Meteor Lake CPUs come in a maximum of 6 P-Cores, 8 E-Cores, and 2 LP-E Cores so it looks like Intel is cutting 2 P-Cores in favor of two extra LP-E cores. Lunar Lake CPUs also come with 4 LP-E cores as the company noted that these are a lot more efficient for mobile tasks and Skymont is bringing a big IPC benefit to the table too.

Previously, Jaykihn had posted the power ratings for various Intel Panther Lake mobile SKUs which feature similar configurations as the one leaked through Coreboot. These CPUs will feature max PL2 ratings of 80W (45W PL1), 64W (28W PL1) and 54W (15W PL1).

Things are looking good for Intel Panther Lake CPUs as the configurations have already been panned out and according to Intel itself, the chips are on-track for production in the first half of 2025 while showing good health. There are also reports that Panther Lake won't be coming to desktops with an Arrow Lake-Refresh lineup being the contender for next year's desktop launch which will be followed by Nova Lake in 2026.

News Sources: @miktdt, Videocardz