Intel Core Ultra 300 Panther Lake Series Leaked
The Intel Core Ultra 300 Panther Lake family has been leaked online before it’s even been announced. The list, shared by “jaykhin0,” a well-known hardware leaker, reveals almost the entire lineup. The processors reach speeds of up to 5.1 GHz and come with the new Arc B390 Xe3 GPU cores. Panther Lake is expected to be officially unveiled in the first quarter of 2026.
Intel Core Ultra 300 Series Specifications Revealed
According to the leak, the Panther Lake family offers a wide range of models, from the high-end Core Ultra X9 388H to the entry-level Core Ultra 3 322. The most powerful model boasts 16 cores (4P+8E+4LP) and a maximum boost speed of 5.1 GHz. The entire series offers TDPs ranging from 25W to 80W, making it suitable for both portable and performance-oriented devices.
| Model | Core Structure | Max Boost (GHz) | GPU | TDP (Default / Maksimum) |
| Core Ultra X9 388H | 16C (4P+8E+4LP) | 5,1 | Arc B390 12 Xe3 | 25W / 65–80W |
| Core Ultra X9 386H | 16C (4P+8E+4LP) | 4,9 | Arc B390 12 Xe3 | 25W / 65–80W |
| Core Ultra X7 368H | 16C (4P+8E+4LP) | 5 | Arc B390 12 Xe3 | 25W / 65–80W |
| Core Ultra X7 366H | 16C (4P+8E+4LP) | 4,8 | Arc B390 12 Xe3 | 25W / 65–80W |
| Core Ultra X7 358H | 16C (4P+8E+4LP) | 4,8 | Arc B390 12 Xe3 | 25W / 65–80W |
| Core Ultra X7 356H | 16C (4P+8E+4LP) | 4,7 | Arc B390 12 Xe3 | 25W / 65–80W |
| Core Ultra 5 338H | 12C (4P+4E+4LP) | 4,7 | Arc B370 10 Xe3 | 25W / 65–80W |
| Core Ultra 5 336H | 12C (4P+4E+4LP) | 4,6 | 4 Xe3 | 25W / 65–80W |
| Core Ultra 7 365 | 12C (4P+0E+4LP) | 4,8 | 4 Xe3 | 25W / 55W |
| Core Ultra 7 355 | 12C (4P+0E+4LP) | 4,7 | 4 Xe3 | 25W / 55W |
| Core Ultra 5 335 | 12C (4P+0E+4LP) | 4,6 | 4 Xe3 | 25W / 55W |
| Core Ultra 5 325 | 12C (4P+0E+4LP) | 4,5 | 4 Xe3 | 25W / 55W |
| Core Ultra 5 332 | 6C (2P+0E+4LP) | 4,4 | 2 Xe3 | 25W / 55W |
| Core Ultra 3 322 | 6C (2P+0E+4LP) | 4,4 | 2 Xe3 | 25W / 55W |
The new series promises a significant leap forward in integrated GPU performance with Intel’s Arc B390 12 Xe3 graphics. While the same GPU architecture is retained in the X7 and X9 series, the mid-range models feature Arc B370 10 Xe3 and lower configurations. This suggests that Intel will limit its high graphics power to higher-end models.
The Panther Lake architecture maintains a hybrid core layout with a 4P+8E+4LP architecture. This architecture aims to reduce power consumption and increase multitasking performance by balancing performance and efficiency cores. Intel is rumored to be focusing particularly on AI acceleration and efficiency modules in this series.
According to leaks, Intel will launch Panther Lake in the first quarter of 2026. The series is expected to compete directly with AMD’s Strix Point and Apple’s M4 Pro processors. While no official announcement has been made yet, if the performance leaks are true, Panther Lake suggests that Intel will reclaim its leadership position in the mobile processor market.
