Intel Panther Lake CPUs will operate in a frequency range of 25-64W for performance mode. More specs leaked in the spec sheet.
Preliminary Specs Sheet Reveals Different Intel Panther Lake "Core Ultra 300" CPU Configurations & Power Modes
Intel Panther Lake-H CPUs are scheduled for a late 2025 launch and with most of its preparations being complete, some of the specs have been circulating for a while. Intel showed the chip last year, revealing crucial information about this upcoming series aka Core Ultra 300. Today, we have received a comprehensive list of specs (preliminary), detailing the core configuration and power limits of different SKUs.
While the list doesn't reveal the actual SKU names, it mentions PTL-H or Panther Lake-H CPUs with Performance and Baseline specs. If you remember, the leaker @jaykihn0 leaked some of the specs of the Panther Lake-H series, and he is the same guy who leaked the preliminary spec sheet we are sharing with you.
As you can see, the PTL-H comes in three different configurations:
- 4+8+4Xe (4 P-Cores + 8 E-Cores + 4 Xe3 iGPU Cores)
- 4+8+12Xe (4 P-Cores + 8 E-Cores + 12 Xe3 iGPU Cores)
- 4+0+4Xe (4 P-Cores + 0 E-Cores + 4 Xe3 iGPU Cores)
Let's decode it for those who aren't familiar with these configurations. For instance, if we take "4+8+4Xe", here "4" denotes four Performance cores, "8" denotes Eight Efficient Cores, and "4Xe" denotes four cores based on the Xe (Xe3) architecture. The Xe3 architecture succeeds the current Xe2, which is used in Lunar Lake processors.
The most powerful chip will feature 12 Xe3 cores, making it significantly powerful in graphical workloads compared to the 4 Xe3 core chips. Nonetheless, it's also interesting to see that, unlike what we heard before, the Panther Lake-H will bring a higher Max Turbo Boost. It was expected that the CPUs would operate in a 25-45W range, but it looks like the upper limit has been increased to 64W.
Intel Panther Lake CPU Power Configurations (Source: Jaykihn):
| Panther Lake Config | PL1 W | PL2 W | PL3 W | PL4 W | IA Iccmax |
|---|---|---|---|---|---|
| 4+8+12Xe | 25/25/65 | 64/64/80 | 66/66/82 | 153/175/239 | 80/80/148 |
| 4+8+4Xe | 25/25/65 | 55/64/80 | 57/66/82 | 153/163/239 | 80/80/148 |
| 4+0+4Xe | 15/25/- | 44/55/- | 46/57/- | 124/163/- | 80/80/- |
Check the first column, and you will see mentions like PL1, PL2, PL3, and PL4. Here, PL1 is the base frequency and PL2 is the Max Turbo Boost frequency. PL3 and PL4 are extensions for some extra boost occasionally. The CPUs will work in a range of 25-64W in the Performance mode, while their baseline power range will depend on the configuration and will start at either 15W or 25W, all the way to 44W/55W/64W.
With an increase in the power range, the Panther Lake-H brings a significant change in power consumption and also to performance compared to the Intel Lunar Lake, which can operate only at 17W-30W. Keep in mind that these are all preliminary specs and are subject to change before the official launch. Also, we have yet to hear from Intel about the specs of Panther Lake, but we do know that these are likely going to hit the mobile platforms only, including gaming handhelds.
About the author: Sarfraz Khan is a hardware reporter with a focus on PC components and the builder community. With years of experience writing about PC hardware and laptops, his work has been featured on several reputable technology publications. Sarfraz's hands-on experience is demonstrated through his first-person accounts of using and comparing different hardware configurations, providing practical and relatable insights for everyday users. His technical analysis is respected by peers in the enthusiast community and has been cited by specialized hardware sites such as Germany's Igor's Lab.
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