Renowned hardware leaker Jaykihn has shared what appears to be the preliminary power specifications for Intel’s upcoming Panther Lake-H (PTL-H) CPUs, which are expected to power the next generation of laptops and mobile devices. These new chips were previously showcased at CES 2025 and are anticipated to debut later this year.
The leaked details outline three distinct chip variants, each categorized based on performance, efficiency, and integrated Xe3 GPU cores. The Panther Lake-H series is believed to be based on Intel’s Celestial architecture, and speculation suggests these CPUs will be marketed as the Core Ultra 300H series. The preliminary power specifications give insight into the types of devices Intel is targeting.
Breakdown of Leaked Panther Lake-H Variants
1. 16-Core Variant (4+8+4 Configuration)
The first chip in the lineup features a 4+8+4 core configuration, meaning:
- 4 Performance Cores (P-Cores)
- 8 Efficiency Cores (E-Cores)
- 4 GPU Cores (Xe3 Architecture)
This configuration suggests that the processor will likely be paired with a dedicated GPU in gaming laptops or high-performance ultrabooks. According to the leak, the Performance Base Power (PBP) and Maximum Turbo Power (MTP) for this variant are:
- Baseline Mode: 25W PBP / 64W MTP
- Performance Mode: 25W PBP / 64W MTP
Interestingly, this model features fewer efficiency cores than its predecessor, suggesting Intel may be optimizing core balance for better power efficiency.
2. 24-Core Variant (4+8+12 Configuration)
The second variant features an expanded 4+8+12 configuration, comprising:
- 4 Performance Cores
- 8 Efficiency Cores
- 12 GPU Cores
This suggests that the chip could be intended for high-end laptops or creator-focused ultrabooks that require more powerful integrated graphics. Its power specifications are:
- Baseline Mode: 25W PBP / 55W MTP
- Performance Mode: 25W PBP / 64W MTP
Additionally, the cTDP Max headroom for both configurations indicates a maximum power draw of up to 80W MTP, hinting at burst-heavy performance for rendering or intensive computing tasks. However, these CPUs are expected to be more power-efficient than their predecessors in the Core Ultra 200H series, which could push beyond 100W+ in turbo mode.
3. 8-Core Variant (4+0+4 Configuration)
The third and entry-level variant appears to be an 8-core CPU with a 4+0+4 configuration, featuring:
- 4 Performance Cores
- 0 Efficiency Cores
- 4 GPU Cores
This suggests the chip could be a part of the Core Ultra 300U lineup, aimed at budget-friendly laptops, compact ultrabooks, or gaming handhelds. Its power efficiency is notable, with:
- Baseline Mode: 15W PBP / 44W MTP
- Performance Mode: 25W PBP / 55W MTP
This model could cater to portable gaming devices or energy-conscious ultrabooks, offering a balance between efficiency and integrated graphics performance.
Intel’s Renewed Focus on Efficiency
Intel appears to be shifting its strategy toward power-efficient mobile processors, a domain where AMD has long held the advantage in the x86 laptop market. If the leaked specifications hold true, Intel’s Panther Lake-H series may provide a more competitive alternative to AMD’s Ryzen mobile CPUs, potentially closing the efficiency gap.
According to reports, Intel plans to manufacture these chips using its 18A (1.8nm-class) process node, with volume production expected in Q3/Q4 2025. If all goes according to schedule, devices powered by Panther Lake-H CPUs could hit the market in early 2026.
With fierce competition in the mobile processor space, it remains to be seen how Intel’s next-gen chips will stack up against AMD’s upcoming Strix Point and Hawk Point processors. However, these leaked power specifications suggest that Intel is making meaningful strides in balancing performance and efficiency for next-generation laptops.
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