Intel's next-generation Panther Lake-H & Panther Lake-U CPUs have been leaked with their respective core configurations.
Intel's Next-Gen Panther Lake-H "25W" With Up To 16 Cores & Panther Lake-U "15W" With Up To 8 Cores Leak Out
Intel Panther Lake-H CPUs are scheduled for a late 2025 launch, and with most of their preparations being complete, some of the specs have been circulating for a while. Intel last showed the chip at Computex this year, revealing crucial information about this upcoming series, aka Core Ultra 300 or Core Ultra Series 3. & will be the first chip to feature Intel's next-gen 18A process node. Now, more information about these SKUs has been revealed at CoreBoot, as spotted by @InstLatX64.
The list is interesting since it lists Panther Lake CPUs in four segments: a standard variant, a base variant, a Premium variant, and a SuperSKU variant. The SuperSKU should be the top bin with a 4+8+4+12 config, followed by the premium, which should be the 4+8+4+4 SKU.
As you can see, the Intel Panther Lake "Core Ultra 300" family comes in four 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)
- 2+0+4Xe (2 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 Panther Lake CPUs will also feature LP-E cores with up to 4 of these on certain SKUs. Not all SKUs will utilize LP-E cores.
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, as per the last power limits revelations. The Panther Lake-H SKUs will be configured in 25W, while Panther Lake-U will be configured in 15W TDPs at PL1. In addition to Panther Lake, Wildcat Lake CPUs are also confirmed with a 15W PL1 TDP.
Several OEMs, such as Lenovo, have already started showcasing their products based on Intel's Panther Lake "Core Ultra 300" CPUs, so we can expect an announcement soon. A few industrial motherboard manufacturers, such as ADLINK and DFI, have also showcased their products based on Panther Lake. The first products are expected to launch in 2025 in limited supply, while volume production and availability are expected in early 2026.
Intel Panther Lake CPU Configurations
| Die SKU | P-Cores (Cougar Cove) | E-Cores (Darkmont) | LP-E Cores (Skymont?) | Xe3 GPU Cores (Celestial) | PL1 TDP | PL2 TDP |
|---|---|---|---|---|---|---|
| Panther Lake-H | 4 | 8 | 4 | 12 | 25W | 45W |
| Panther Lake-H | 4 | 8 | 4 | 4 | 25W | 45W |
| Panther Lake-H | 4 | 8 | 0 | 4 | 25W | 45W |
| Panther Lake-U | 4 | 0 | 4 | 4 | 15W | 45W |
| Panther Lake-U | 2 | 0 | 4 | 4 | 15W | 45W |
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