Back in February, we reported on Intel considering a resurrection of the "Arrow Lake Refresh" Core Ultra 300 series of CPUs. However, it seems that @Jaykihn, a reliable source of Intel leaks, has confirmed that Intel will indeed push the refresh of Arrow Lake in the form of Core Ultra 300 series of CPUs, limited to K and KF SKUs only. This means we will likely see only overclockable SKUs being refreshed, with possibly enhanced boost frequency and/or core count. With 125 W TDP, these new SKUs would target high-end markets, passionate overclockers, and system integrators selling high-end builds with these CPUs. The refresh's journey to confirmation has been turbulent. Initial rumors in 2023 suggested an ambitious core-count bump for Arrow Lake-S, followed by speculation that Intel would prioritize NPU upgrades, potentially mirroring Lunar Lake's reported 48 TOPS capability—a massive leap from the current Core Ultra 9 285 K's 13 TOPS. By late 2023, leaks hinted at the project's cancellation, but insiders like Chinese leaker Golden Pig Upgrade later revived hopes, asserting that desktop-focused "ARL-S Refresh" had been quietly resurrected.

Jaykihn's latest intel narrows the scope: only K/KF-series chips will receive tweaks, leaving non-overclockable SKUs untouched. Intel is also reportedly developing new performance profiles for existing Arrow Lake CPUs, separate from warranty-voiding BIOS tweaks. These optimizations, alongside the upcoming Intel Performance Optimization (IPO) program, aim to help OEMs and system integrators push pre-built systems further via safer, stability-focused adjustments to clock speeds, power limits, and memory overclocking. While enthusiasts may still prefer manual overclocking, IPO could democratize performance gains for mainstream users. The Core Ultra 300 series will slot into Intel's LGA-1851 roadmap between the base Arrow Lake-S (Core Ultra 200) and 2026's next-gen Nova Lake-S (Core Ultra 400).

Thanks to a well-known industry leaker, Jaykihn, Intel's Panther Lake-H processor family, built on the 18A process node, features three distinct configurations, with several power profiles for each case. The flagship model combines four "Cougar Cove" P-cores, eight "Skymont" E-cores, and four LPE cores alongside a 12-core Xe3 "Celestial" GPU. This variant supports LPDDR5X memory exclusively and delivers 180 TOPS of computational power for local AI workloads, operating at 25 W PL1 (base) and 64 W PL2 (turbo) power levels. Secondary configurations include a 4P+8E+4LP+4Xe3 model and a 4P+0E+4LP+4Xe3 variant, both rated at 100 TOPS and supporting both LPDDR5X and DDR5 memory.

The entry-level model operates at 15 W PL1 with 44 W PL2 in baseline mode, scaling to 25 W PL1 and 55 W PL2 in performance mode. All variants feature Thunderbolt 4 connectivity, with high-end models incorporating expanded PCIe 5.0 lane configurations. The integrated Xe3 graphics architecture scales from four to 12 cores across the product stack, with the top SKU eliminating DDR5 compatibility in favor of LPDDR5X optimization. The Panther Lake processor family is slated for launch within the latter half of 2025, and it will be the company's leading 18A product. As a "Lunar Lake" successor, Panther Lake will deliver improved IPC and optimization for new cores in the same device form-factor like laptops, ultrabooks, and handhelds.

Details have emerged about Intel's upcoming "Panther Lake" processors, set to be the third generation of Core Ultra mobile chips. Called the Core Ultra 300 series, these CPUs are expected to succeed "Lunar Lake". According to recent leaks, Panther Lake-H will be manufactured using Intel's cutting-edge 18A process node. The chips are said to feature a combination of Cougar Cove P-Cores, Skymont E-Cores, and Xe3 (Celestial) integrated graphics. This architecture builds upon Intel's hybrid core design, refining it for even better performance on mobile devices. The leaked information suggests a range of configurations for Panther Lake-H, the high-perfomance variant of the lineup. These include models with varying core counts and power envelopes, from efficient 25 W parts to more interesting 45 W options. Notably, some SKUs reportedly feature up to 18 cores in total, combining P-cores, E-cores, and LP E-cores in a five-tile package. This is an increase from previously believed 16 cores.