Intel Panther Lake mobile CPUs leak with up to 16 cores and 5.1 GHz
Intel’s upcoming Panther Lake mobile processors have appeared in fresh specifications revealing performance targets and internal architecture for the Core Ultra 300 family. The flagship Core Ultra X9 388H will combine 16 cores across three cluster types with maximum speeds reaching 5.1 GHz at 45 watts of power consumption, according to details from leaker @jaykihn0. That chip pairs four performance cores with eight efficiency cores and four low-power efficiency cores, marking the fastest mobile design Intel has produced using such hybrid arrangements. Graphics processing relies on 12 Xe3 units based on Battlemage technology.
Additional models span thermal envelopes from 18 to 28 watts for slimmer notebook designs. The Core Ultra 386H and X7 368H reach 4.9 GHz and 5.0 GHz, respectively, while midrange options like the 366H and X7 358H hit between 4.7 and 4.8 GHz. Budget entries cap near 4.5 GHz. Core counts range from six in entry devices through 16 in premium systems, with various combinations of performance and efficiency clusters. Foveros packaging supports the modular layout.
The platform could challenge AMD Strix Point processors when arriving in 2026 for high-end ultraportables and gaming laptops. Intel has not formally confirmed specifications.
