Intel’s latest Arrow Lake-HX refresh is poised to blur the line between desktop and laptop performance. The Core Ultra 9 290HX Plus, still in the pipeline for an official unveiling, has emerged in benchmark leaks that suggest it may nearly match the desktop-focused Core Ultra 9 285K—despite being designed for laptops.
This isn’t just about raw numbers; it’s a shift in how Intel approaches mobile computing. The HX series traditionally repurposes desktop dies for laptop use, but the 290HX Plus appears to refine that approach further, with optimizations that could make it a standout in both productivity and gaming scenarios.
Key specs for the chip include 8 performance cores (P-cores) and 16 efficiency cores (E-cores), totaling 24 cores and 24 threads. The base clock sits at 3.10 GHz, with a boost clock edging past 5.5 GHz—slightly higher than the existing flagship Core Ultra 9 285HX. Cache configuration remains consistent with 36 MB of L3 cache and 12 MB of L2 cache, paired with an integrated Intel Arc iGPU. Thermal design power (TDP) is rated at 55W under load, with a maximum turbo power (MTP) of 160W.
- Cores/Threads: 8 P-cores + 16 E-cores (24 cores / 24 threads)
- Base Clock: 3.10 GHz
- Boost Clock: >5.5 GHz
- Cache: 36 MB L3, 12 MB L2
- iGPU: Intel Arc iGPU
- TDP: 55W (base), 160W (MTP)
- Memory Support: DDR5, DDR4
The implications for mobile performance are significant. A laptop CPU that can rival a desktop part in benchmarks suggests a level of optimization that could appeal to power users who demand both portability and processing might. However, the trade-off lies in thermal management—160W MTP is aggressive for a laptop, which may limit battery life or require robust cooling solutions.
Benchmark results place the 290HX Plus close to AMD’s Ryzen 9 9950X3D, scoring 3198 points in single-core and 21,581 in multi-core tests. This performance was measured on an Acer Predator Helios 18 NEO laptop, underscoring the chip’s potential in high-end mobile platforms.
While Intel has yet to announce this refresh officially—focusing instead on Panther Lake at CES 2026—the leaks hint at a product that could redefine expectations for laptop CPUs. If the 290HX Plus delivers on its promise, it may force competitors to rethink their mobile strategies, particularly in gaming and content creation.
Availability is not yet confirmed, but given Intel’s recent leaks and the momentum around Arrow Lake, this chip could surface within weeks. For now, it remains a tantalizing glimpse into what’s possible when desktop-grade performance meets mobile efficiency.
