Intel Core Ultra 9 285HX: Specs, Pros & Cons

KACBU

Should I buy it?

Intel Core Ultra 9 285HX

CONSIDER

Great choice if these matter:

Gaming
Content Creation
Work / Productivity

Watch out for:

The gap over the 275HX is a 100 MHz bin — measurable in benchmarks, rarely felt in use.
Real performance depends entirely on the chassis: the same chip behaves differently in every laptop.

Regret riskLOWlimited data

Main risks

The gap over the 275HX is a 100 MHz bin — measurable in benchmarks, rarely felt in use.
Real performance depends entirely on the chassis: the same chip behaves differently in every laptop.
No Hyper-Threading: 24 threads from 24 cores.
NPU misses the Copilot+ threshold; this is a throughput chip, not an AI-PC chip.

The risk level is computed from the release date and verified weaknesses. The confidence score appears only once enough owner reports exist.

Alternatives

Intel Core Ultra 9 290HX Plus

Google Tensor G6

This box relies only on verified specs, the release date and editorial assessment; owner reports join them as they come in. We do not predict prices.

Core Structure

How many cores does the processor have?

Manufacturer's official core and architecture information.

CORE STRUCTURE

The structure decisive in multi-core tasks.

24 Core

24 Core — Total Cores · 24 Thread — Concurrent Threads · 8 Performance — High-performance core · 16 Efficiency — Low-power core · Lion Cove / Skymont — Core architecture

24 Core24 Thread8 Performance16 EfficiencyLion Cove / Skymont

24 CoreTotal Cores

24 ThreadConcurrent Threads

8 PerformanceHigh-performance core

16 EfficiencyLow-power core

Lion Cove / SkymontCore architecture

Frequency

How fast does it work?

Manufacturer's official frequency values.

FREQUENCY

Value that determines single-core performance.

5.5 GHz Boost

5.5 GHz — Maximum boost frequency · 2.8 GHz — Base frequency

5.5 GHz2.8 GHz

5.5 GHzMaximum boost frequency

2.8 GHzBase frequency

Power and Cooling

How much power does it draw?

Official power values that determine cooling needs.

POWER AND COOLING

These values determine the cooling budget.

55 W TDP

55 W — Base Power Consumption (TDP) · 160 W — Maximum turbo power

55 W160 W

55 WBase Power Consumption (TDP)

160 WMaximum turbo power

Who Is It For?

Where does it stand out?

A usage guide built from the specs and the editors' tags; not a test result.

Gaming

For gaming; tagged from the display's refresh rate and the chip's class. We have not measured frame rates or heat ourselves.

Good fit

Content Creation

For creators who need professional video formats and fast transfer.

Good fit

Work / Productivity

For heavy work use; tagged from the battery and display specs. We have not timed the battery ourselves.

Good fit

Editorial Analysis

Strengths and points to consider

The Kacbu editors' assessment of the specifications the maker publishes. We do not test devices ourselves, so nothing here is a measured result. Anything taken from an independent review is shown with its publication and date in the Press section.

Strengths based on the specs

5.5 GHz maximum turbo is the highest clock of any laptop chip in its generation.

24 cores (8 performance + 16 efficiency) deliver desktop-class multi-core throughput.

36 MB L3, DDR5-6400 and PCIe 5.0 — the full desktop platform feature set, soldered into a notebook.

In 18-inch flagships its 160W turbo actually gets fed, unlike in thinner machines.

Things to consider

The gap over the 275HX is a 100 MHz bin — measurable in benchmarks, rarely felt in use.

Real performance depends entirely on the chassis: the same chip behaves differently in every laptop.

No Hyper-Threading: 24 threads from 24 cores.

NPU misses the Copilot+ threshold; this is a throughput chip, not an AI-PC chip.

Historical Product Info

Official launch details

Instead of tracking today's retail price, Kacbu keeps the product's official launch information as a reference.

AnnouncedJanuary 6, 2025

The manufacturer's official announcement date.

Design🇺🇸 United States

Manufacturing🇺🇸 United States, 🇹🇼 Taiwan

Intel designs Arrow Lake in the US. Production is split: the compute tile is fabricated at TSMC in Taiwan, while Intel's own fabs handle other tiles and final packaging.

This is not the current retail price — it shows the product's historical, official launch information.

Specifications

Intel Core Ultra 9 285HX specifications

Click a linked value to see other products that share that same spec, and leave a comment on that spec.

General

Family

Arrow Lake-HX (Core Ultra 200HX)

Segment

Laptop Flagship

Release Year

2025

Manufacturer

Intel

Core Structure

Cores

Threads

Core Architecture

Lion Cove / Skymont

Efficiency Core

Performance Core

Frequency

Base Frequency

2.8 GHz

Boost Clock

5.5 GHz

Cache

L2 cache

40 MB

L3 Cache

36 MB

Memory

Maximum Memory

256 GB

Memory Type

DDR5-6400

Memory Channel

Graphics Unit

Integrated Graphics

Intel Arc Graphics (4 Xe cores)

Power

TDP

55 W

Maximum Turbo Power

160 W

Platform

Socket

BGA (soldered)

Manufacturing Process

TSMC 3nm

Lithography

3 nm

PCIe Version

PCIe 5.0

FAQ

The most common questions about this product

What the numbers on the spec sheet actually mean in day-to-day use.

285HX or 275HX — is the top bin worth it?

They are the same silicon; the 285HX is the better-sorted die running 100 MHz higher. In practice the laptop around the chip — its cooling and power delivery — moves performance far more than the bin does. Buy the machine, not the suffix.

Why do 18-inch flagships use it?

Because they can actually feed it. A 160W-class CPU next to a 175W-class GPU needs a power supply and cooling system only the largest chassis carry — which is exactly where this chip's extra headroom stops being theoretical.

Which laptops use the Core Ultra 9 285HX?

The largest 2025 gaming and workstation flagships. Every machine in this catalogue that carries it is listed on this page.

Shared Hardware