Intel is preparing a distinctive processor line codenamed Bartlett Lake-S, breaking from its recent hybrid formula by going all-in on Performance cores (P-cores). The rumored flagship features 12 P-cores / 24 threads with boost clocks reaching 5.9 GHz, signaling a return to a homogeneous core design optimized for deterministic performance.
While officially aimed at edge and embedded deployments, Bartlett Lake-S also stands out as a compelling option for enthusiasts who prefer predictable scheduling and high clocks without E-core complexity.
🔁 A Return to a “Pure” Core Design #
Bartlett Lake-S abandons the Big-LITTLE approach seen in Raptor Lake and Arrow Lake. By removing Efficiency cores, Intel simplifies scheduling and reduces inter-core overhead—benefits that matter in latency-sensitive environments.
What the leaks suggest:
- Unified scheduling: No E-cores means fewer OS heuristics and more predictable task placement.
- Socket continuity: Expected to use LGA1700, making it a potential final upgrade for Z690/Z790 platforms.
- Higher cache per core: The top SKU reportedly carries 36MB of L3, feeding high-frequency P-cores efficiently.
📋 Leaked SKU Stack (P-Core Only) #
Early lists show a broad lineup spanning Core 5 through Core 9, with suffixes (PE, PTE, PQE) tailored for embedded and networking use cases.
| Series | Model (Example) | Cores / Threads | Max Boost | L3 Cache |
|---|---|---|---|---|
| Core 9 | 273PQE | 12C / 24T | 5.9 GHz | 36MB |
| Core 9 | 273PE | 12C / 24T | 5.7 GHz | 36MB |
| Core 7 | 253PE | 10C / 20T | 5.5 GHz | 33MB |
| Core 5 | 213PE | 6C–8C (TBD) | 5.2 GHz | 24MB |
Benchmark note: Early PassMark data shows the Core 7 253PE (10 P-cores) matching the multi-threaded performance of a hybrid Core i5-14500 (6P+8E)—underscoring how consistent, high-quality cores can rival higher raw core counts.
🎯 Who Is Bartlett Lake-S For? #
Although positioned for embedded and edge systems, the architecture’s traits appeal beyond its official target.
- Edge & industrial: Deterministic latency, stable clocks, and simplified scheduling for robotics, networking, and medical devices.
- Enthusiasts & gamers: A 12C/24T, 5.9 GHz CPU without E-cores could reduce latency variance and improve frame-time consistency by avoiding ring-bus penalties tied to heterogeneous cores.
⏱️ Availability and Outlook #
Intel has reportedly begun shipping early E and TE variants. The higher-end P-core-only models—including the 5.9 GHz Core 9—are expected in H1 2026. While a boxed retail launch is uncertain, availability through OEMs and specialized vendors is likely.
If the leaks hold, Bartlett Lake-S marks a noteworthy counterpoint to hybrid designs—prioritizing frequency, cache, and predictability over architectural complexity.