Intel Core Ultra 9 285H socket: BGA 2049

What the Core Ultra 9 285H is

The Intel Core Ultra 9 285H is the flagship of the Arrow Lake-H mobile stack on BGA 2049. It runs 16 cores at 2.9 GHz Performance-core base with boost to 5.4 GHz alongside Efficient-core turbo to 4.5 GHz and low-power boost to 2.5 GHz, backed by 24 MB of Intel Smart Cache plus 26 MB of L2 and a 45 W base power. Intel launched the H range in January 2025, building the compute tile on TSMC 3 nm.

Sixteen cores at a 45 W base suit flagship thin gaming laptops, creator notebooks and mobile workstations where top clocks must fit a slim chassis. The 2.9 GHz P-core base is the highest in the H batch, so sustained work stays fast under full cooling, while bursts to 5.4 GHz clear single-threaded spikes. An AI Boost NPU with 13 TOPS backs 99 platform TOPS for on-device assistance beside CPU and GPU.

Against the 16-core Intel Core Ultra 7 265H below it, the 285H adds base frequency across the cores at a higher 45 W class. Against the 24-core HX parts on BGA 2114, the 285H trades cores for portability at much lower power. Arc 140T graphics with 8 Xe-cores up to 2.35 GHz serve modern play without discrete silicon. See LGA, PGA and BGA: CPU package types explained for how soldered mobile packages differ from socketed desktops.

Socket and motherboard compatibility

The 285H fits BGA 2049, a 2,049-ball soldered package measuring 50 × 25 mm. The chip is soldered once at the factory and stays with the board for life, so there is no retention mechanism and no aftermarket mounting choice. Cooling is part of the laptop design for the 45 W class with turbo headroom and a 110 degree junction limit, usually advanced dual-fan assemblies.

Board choice means laptop choice. Memory is LPDDR5X up to 8400 MT/s or DDR5 up to 6400 MT/s in two channels up to 192 GB on listed builds. A chassis revision needs firmware that knows the Arrow Lake-H stepping. Moving from any other package is a full system change with memory and thermal design replaced together.

Memory, PCIe and cooling

Memory on BGA 2049 is LPDDR5X up to 8400 MT/s or DDR5 up to 6400 MT/s in two channels. Soldered LPDDR5X feeds both CPU and Arc graphics with high bandwidth, while DDR5 SODIMM slots keep some designs serviceable. Capacity follows the laptop spec sheet, so buyers confirm each model.

PCI Express connectivity spans PCIe 5.0 and 4.0 for up to 28 lanes plus Thunderbolt 4. That lane budget feeds NVMe storage and compact discrete graphics on flagship thin designs without strain. Lane splits follow the board layout, so buyers confirm wiring before counting on multi-drive arrays.

Graphics come from Intel Arc 140T with 8 Xe-cores up to 2.35 GHz, the top integrated tier in this batch for smooth modern play. Cooling follows the maker specification for the 45 W class. Firmware power limits scale the chip down toward its minimum assured power in silent profiles, at some cost in sustained clocks.

Upgrade paths

On the same package, there is no larger Arrow Lake-H part above the 285H in this batch, so growth on BGA 2049 means a thicker chassis with more cooling headroom or a step across to HX silicon. The 16-core Intel Core Ultra 7 265H beside it keeps the same cores at lower clocks for the 28 W class.

The step down to the 16-core Intel Core Ultra 7 255H trims clocks further for budget designs. A move to BGA 2114 Arrow Lake-HX is a different soldered platform with up to 24 cores at 55 W for desktop replacements. That change means a whole new system.