12 Intel Panther Lake Processors Leak Online — Core Ultra X and U Series Details Surface

A complete rundown of Intel’s forthcoming Panther Lake processor family — the successor to Lunar Lake — has surfaced online. Posts on the Chiphell forum indicate the company plans to introduce 12 models in the initial wave, including flagship Core Ultra X chips, standard Core Ultra SKUs, and energy-efficient Panther Lake‑U parts for ultrabooks.

The series reportedly includes four Core Ultra X processors: Core Ultra 9 X3X8H, Core Ultra 7 X3X8H, Core Ultra 5 X338H, and one unspecified variant. Four additional dies appear in the 3X5H lineup, while the remainder belong to the low‑power 3X0U family. The chief differentiator is the integrated graphics configuration: X‑branded models are said to carry 12 Xe3 GPU cores based on the Celestial architecture, the Core Ultra 5 X338H will have 10 cores, and the standard variants will feature just 4. All CPUs retain a 4 P‑core + 8 E‑core CPU layout, and select SKUs add four LP‑E cores.

Intel intends to clearly separate the tiers. The Core Ultra X series will target gaming laptops and mobile workstations with higher TDPs and boosted graphics, standard Core Ultra parts will offer a balanced mainstream option, and Panther Lake‑U will underpin thin‑and‑light laptops where CPU counts are typically limited to 6–8 cores and the GPU to a four‑core Xe3 configuration.

It remains unclear how Intel will finalize the naming convention. The company is reportedly testing two formats: placing the “X” after the family name (Core Ultra X7 3X8H) or before the model number (Core Ultra 7 X3X8H).

Panther Lake is expected to be Intel’s first family built on the 18A process, featuring Cougar Cove P‑cores and Darkmont E‑cores. A launch is anticipated in late 2025, with the first laptops based on the new platform arriving in early 2026. Intel hopes the shift to 18A will help it regain a performance advantage.

Source: iXBT.games