A new leak is shedding more light on Intel Bartlett Lake-S, an upcoming CPU family aimed at embedded and edge systems that stands out for one big reason: these chips are built with Performance cores only. No Efficient cores, just all P-cores across the stack. According to the details that surfaced, Intel is preparing Core 5, Core 7, and Core 9 Bartlett Lake-S models, including a flagship configuration with up to 12 P-cores and turbo speeds reaching as high as 5.9 GHz.
Bartlett Lake-S hasn’t been formally introduced yet, but the idea of a P-core-only Intel design has already drawn attention after earlier performance results showed how effective this layout can be in certain workloads and benchmarks. One previously spotted model, the Core 7 253PE, reportedly features 10 Performance cores and has been seen delivering performance in the range of much higher-class mainstream desktop parts, despite using fewer total cores than some hybrid designs. The key difference is that every core is a full Performance core, which can pay off depending on the software and the type of threaded workloads being run.
This latest leak points to a broader lineup with 12 total SKUs spread across Core 5, Core 7, and Core 9 branding. While the leak doesn’t provide full core-and-thread specs for every Core 5 model, it does outline SKU names, turbo clock speeds, and L3 cache sizes. The Core 7 and Core 9 configurations are clearer: Core 7 models are listed with 10 P-cores and 20 threads, while Core 9 models step up to 12 P-cores and 24 threads, targeting higher-compute embedded deployments.
The cache and boost figures are especially interesting for anyone tracking Intel’s edge CPU roadmap. The Core 5 chips are said to come with 24 MB of L3 cache, the Core 7 lineup moves to 33 MB, and the Core 9 parts top out at 36 MB. On the frequency side, the slowest listed parts boost up to 5.2 GHz, while the fastest model in the leak, the Core 7 273PQE, is shown hitting 5.9 GHz. That peak turbo figure is notably aggressive for an embedded-focused line and even edges above the maximum turbo speed seen on some recent flagship desktop SKUs.
Another detail worth noting is availability. Bartlett Lake-S is expected to be positioned primarily for the edge and embedded market rather than standard consumer retail. Even so, as has happened with other embedded-oriented Intel processors in the past, some models may still show up through third-party channels and select vendors, potentially giving DIY builders and workstation enthusiasts a chance to experiment with P-core-only CPUs, even if they aren’t officially sold as mainstream desktop parts.
Here are the leaked Bartlett Lake-S P-core-only SKUs and the listed boost clocks and cache:
Core 5 213PE: up to 5.2 GHz, 24 MB L3
Core 5 213PTE: up to 5.2 GHz, 24 MB L3
Core 5 213PEF: up to 5.2 GHz, 24 MB L3
Core 5 223PE: up to 5.4 GHz, 24 MB L3
Core 5 223PTE: up to 5.4 GHz, 24 MB L3
Core 5 223PQE: up to 5.5 GHz, 24 MB L3
Core 7 253PTE: 10 cores / 20 threads, up to 5.4 GHz, 33 MB L3
Core 7 253PE: 10 cores / 20 threads, up to 5.5 GHz, 33 MB L3
Core 7 253PQE: 10 cores / 20 threads, up to 5.7 GHz, 33 MB L3
Core 9 273PTE: 12 cores / 24 threads, up to 5.5 GHz, 36 MB L3
Core 9 273PE: 12 cores / 24 threads, up to 5.7 GHz, 36 MB L3
Core 9 273PQE: 12 cores / 24 threads, up to 5.9 GHz, 36 MB L3
If the leak reflects the final product lineup, Intel Bartlett Lake-S could become a compelling option for edge computing, industrial PCs, and other embedded scenarios where strong single-thread speed and consistent P-core performance matter more than a hybrid core approach. The biggest remaining questions are pricing, platform support, power targets, and whether any of these P-core-only chips will become easy to purchase outside the embedded supply chain.
