Key Takeaways
1. The Panther Lake ES processor features 10 active cores with a 2p + 4E + 4 LP-E layout, indicating it is a prototype for internal use.
2. The processor operates at clock speeds of 3.0 GHz for P-cores and 2.6 GHz for E-cores, with a boost up to 3.2 GHz.
3. It includes 11 MB of L2 cache and 12 MB of L3 cache, along with a Xe3 integrated GPU with four execution units.
4. Benchmarking showed performance below retail standards, with power targets of 25 W PL1, 65 W PL2, and a high limit of 160 W PL4.
5. Intel plans to reveal more details about Panther Lake at CES 2026.
Leaker Yuuki_AnS shared images of a Panther Lake ES processor on X. This sample features 10 active cores and utilizes the PTL 16C/4Xe3 tile arrangement. The CPU employs a 2p + 4E + 4 LP-E layout, which hasn’t been seen in prior leaks, suggesting that these images are from a prototype made for internal use.
Package Information
The processor package is marked “000C06C0” and fits into Intel’s BGA-2540 socket.
Performance Specifications
As per Yuuki_AnS, the clock speeds for the engineering sample are 3.0 GHz for all P-cores, 2.6 GHz for all four E-cores, with a boost reaching as high as 3.2 GHz. The Panther Lake chip includes 11 MB of L2 cache and 12 MB of L3 cache. Its Xe3 integrated GPU has four execution units and interfaces through a 2.5 GT/s PCIe link.
Benchmarking Details
The processor was tested using Intel’s Reference Validation Platform (RVP). This system consists of 16 GB of LPDDR5X RAM, an Alder Lake-based ADL-P frame, and four SK hynix H58G56BK8BX068-418A modules with a speed rating of 7467 MHz.
The engineering sample was also assessed in both single-threaded and multi-threaded settings via CPU-Z. Unfortunately, the performance did not meet the standards expected of retail products. Power measurements indicate a 25 W PL1 target, 65 W PL2, and a significantly high 160 W PL4 limit, with the chip being capped at a 100°C TjMax.
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