The world of tech leaks has given us our first, tantalizing glimpse of Intel's future. A known and often-reliable leaker, Yuuki_AnS, has taken to the social media platform X to share photographs and key specifications of what appears to be an engineering sample for Intel's upcoming Panther Lake processor.
This early look provides a crucial puzzle piece in understanding Intel's roadmap, offering insights into the core configuration, cache design, and potential performance trajectory of the next major architecture following the soon-to-launch Lunar Lake.
The Leak: Unpacking the Panther Lake ES Details
The photos, shared by Yuuki_AnS, reveal a processor that is very much in its early testing phase. The sample in question has 10 cores activated, but it's the configuration of those cores that is particularly interesting. The chip uses what is identified as a PTL 16C/4Xe3 tile configuration, with the active CPU cores arranged in a 2P + 4E + 4 LP-E layout.
This triple-tiered core layout confirms Intel's continued commitment to its hybrid architecture, but with a twist. The inclusion of four LP-E (Low-Power Efficient) cores alongside the standard Performance (P) and Efficient (E) cores suggests a more nuanced approach to power management, likely aimed squarely at improving battery life in mobile platforms. This specific 2+4+4 configuration does not match any previously leaked retail SKUs, strongly indicating that this is an internal engineering sample used for validation and testing.
The physical package is marked with the code “000C06C0” and utilizes Intel’s BGA2540 socket, cementing its identity as a mobile-focused part.
Performance and Clock Speeds: An Early, Cautious Profile
As with any early engineering sample (ES), clock speeds are conservative and not representative of final product performance. According to the leak, this Panther Lake chip operates at a base of 3.0 GHz all-core for the P-cores, with the E-cores running at 2.6 GHz. A boost clock of up to 3.2 GHz was also noted.
On the cache front, the processor is reported to feature a total of 11 MB of L2 cache and 12 MB of L3 cache. These figures provide a baseline for architectural improvements, which will become clearer as more mature samples emerge.
The Testing Platform: RVP and LPDDR5X Memory
The chip was tested on what is known as an Intel Reference Validation Platform (RVP). This is a standard motherboard platform used internally by Intel and its partners to test and debug new silicon before mass production. The specific setup for this Panther Lake test included:
- 16 GB of LPDDR5X memory
- Four SK hynix memory modules (model H58G56BK8BX068)
- A memory speed rating of 7467 MHz
Interestingly, the leaker notes that the RVP used an "Alder Lake-P frame," suggesting that the fundamental platform design for these mobile chips retains some compatibility, at least for testing purposes.
Power and Early Benchmark Results: Managing Expectations
The power limits for this ES chip are revealing. It features a 25 W PL1 (base power) target, a 65 W PL2 (boost power) limit, and a very high 160 W PL4 limit, which is a worst-case scenario power threshold. The chip's maximum junction temperature (TjMax) is capped at 100°C.
When it comes to raw performance, the leaker advises caution. The processor was run through CPU-Z’s benchmark, and as expected for such an early sample, the results appear "limited." The conservative clock speeds and unoptimized microcode typical of these early builds prevent them from showing their true potential. The primary goal at this stage is stability and functional testing, not breaking benchmark records.
What This Panther Lake Leak Means for the Future
This leak, while not showcasing a finished product, is significant for several reasons:
- Architectural Confirmation: It provides concrete evidence of Panther Lake's core configuration, confirming the use of LP-E cores for even greater power efficiency.
- Platform Readiness: The fact that functional engineering samples are in the wild and being tested on RVPs indicates that Intel's development timeline is progressing.
- A Glimpse of the Strategy: The focus on a low-power mobile part first aligns with Intel's stated goal of pushing the envelope on power efficiency, a key battleground in the laptop and AI PC market.
While it's too early to draw any conclusions about final performance, this leak successfully builds anticipation for Panther Lake. As more mature samples inevitably appear, we will get a clearer picture of how Intel's next-generation architecture will compete in the ever-evolving processor landscape. For now, the tech world has been given a compelling sneak peek at what's coming beyond Lunar Lake.

