Intel Panther Lake lineup leaks with P, U, H SKUs and Arc Xe3 iGPU

Intel's Panther Lake architecture was confirmed by a leak from Moore's Law is Dead. Subsequently, it showed up in a Dell roadmap that hinted at a 2026 launch, presumably under the Core Ultra 300 moniker. Now, we have more information about Intel's upcoming laptop CPUs courtesy X leaker Jaykihn. They will be offered in three variants: Panther Lake-U, Panther Lake-P, and Panther Lake-H.

Like previous U-branded SKUs, Panther Lake-U will cap out at 15 Watts of power. Its top-spec SKU will launch with four P cores, four LP-E cores and an Arc iGPU with four Xe3 cores. Panther Lake-H has four P cores, eight E cores and four LP-E cores, the same Arc iGPU and a TDP of 25 Watts. Lastly, Panther Lake-P has the came CPU/TDP but uses an iGPU with 12 CUs.

An earlier leak confirmed Panther Lake would use Intel's third generation Celestial architecture for its iGPU. For the CPU, it will use Cougar Cove (P cores), Darkmont (E cores) and Skymont (LP-E cores). Panther Lake will be manufactured on Intel's 18A node (some parts of it, at least). This could help Intel get ahead if the power efficiency race thanks to backside power delivery, which won't be available on TSMC/Samsung nodes until 2027.