Published in PC Hardware

Intel’s Bartlett Lake-S P-core-only CPU confirmed in Linux kernel patch

by on16 April 2025


Might revive AVX-512 

Chipzilla’s engineers have confirmed the existence of a P-core-only variant of its Bartlett Lake-S platform in a fresh Linux kernel patch, giving the rumour mill a much-needed shot of validation.

According to Tom's Hardware, the patch assigns a CPUID — Family 6, Model 215 (0xD7) — to Bartlett Lake, allowing Linux to recognise the chips at boot and execute optimised code paths via the Intel CPU dispatcher. Tucked inside the patch notes was a sentence: “Bartlett Lake has a P-core only product with Raptor Cove.”

This essentially rubber-stamps earlier reports of a 12 P-core, 24-thread SKU targeting the LGA 1700 socket, making it a potential drop-in replacement for current 600- and 700-series boards, pending a BIOS update.

Bartlett Lake-S has been formally introduced for hybrid-core Network and Edge deployments, but this all-performance-core variant signals a broader push. Raptor Cove — an enhanced version of Golden Cove — previously maxed out at eight cores in Raptor Lake silicon, so this likely means a new die.

If true, Bartlett Lake-S could bypass the E-core scheduling headaches and offer monolithic-core simplicity, with early whispers suggesting TDPs of 125W, 65W, and 45W to suit various markets.

One juicy possibility: re-enabling AVX-512. Chipzilla fused it off in later Alder Lake batches due to hybrid core conflicts, but a unified core design could bring it back — a potential boon for power users and compute-heavy workloads.

So far, Bartlett Lake appears tied to embedded packages like COM-HPCs, but with Q3 2025 pegged for wider release — and Computex around the corner — we could see a desktop launch teased soon.

Whether these chips can square up to AMD’s Ryzen 9000 series is still unclear, but gamers chasing raw performance might welcome the trade-off in efficiency.

 

Last modified on 16 April 2025
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