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Intel Core Ultra 9 285HX Review | 78 Data compared

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  • Avg. price in UK: ~£560
  • Avg. price in US: ~$650
  • PassMark benchmark result: 57401
  • N. of physical cores: 24
  • CPU boost clock speed: 5.5 GHz

Intel Core Ultra 9 285HX review. Compare 78 technical specifications and user reviews to see how it ranks among processors and if it is worth buying.

8.6

Overall score

What it is: An overall evaluation of the processor's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best processors on the market.

Score components:

90.0%

8.6

Technical Score

10.0%

?

User score

Excellent
8.6

Technical Score

What it is: An assessment of the processor's technical performance, covering key areas such as processing performance, core configuration, efficiency, platform support, integrated features, and thermal behavior.

When it matters: When you want to compare processors based on technical performance and available features.

Score components:

60.0%

9.0

Performance

18.0%

8.7

Cache & Architecture

10.0%

9.4

Memory & PCIe

7.0%

4.1

Power & Thermal

4.0%

8.4

Platform

1.0%

8.2

Integrated Graphics

Excellent
?

User score

What it is: A rating that combines user reviews and the total number of reviews received by the processor.

When it matters: When you want to know how a processor performs in real workloads and how reliable it is for gaming, productivity, and efficiency according to user feedback.

Score components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 8.7
    Gaming

    Score components:

    30.0%

    9.1

    PassMark single-core benchmark score

    25.0%

    9.4

    Geekbench 6 single-core benchmark score

    20.0%

    9.1

    CPU boost clock speed

    17.0%

    6.1

    L3 cache

    8.0%

    10

    N. of physical cores

  • 8.7
    Video editing

    Score components:

    45.0%

    9.5

    Geekbench 6 multi-core benchmark score

    20.0%

    10

    N. of physical cores

    20.0%

    7.6

    CPU threads

    15.0%

    6.1

    L3 cache

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Best prices in UK

    N/A~ £560

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Intel Core Ultra 9 285HX is a high-end mobile processor based on the Arrow Lake-HX architecture, featuring 24 cores (8 Performance and 16 Efficiency) and 24 threads with a max turbo boost frequency of 5.5 GHz. It includes 36 MB of L3 cache, a base TDP of 55W (boosting up to 160W), and a built-in 'AI Boost' NPU delivering 13 TOPS for AI-driven workloads. Main pros include its improved energy efficiency over previous flagship generations, support for high-speed DDR5-6400 memory up to 192GB, and elite-level performance for demanding tasks like 4K video editing and high-end gaming. However, its significant power spikes during heavy loads can lead to high thermal output and fan noise, and its lack of hyper-threading results in a lower thread count compared to its direct predecessor.

Technical Specifications of processor Intel Core Ultra 9 285HX

Technical Score

What it is: An assessment of the processor's technical performance, covering key areas such as processing performance, core configuration, efficiency, platform support, integrated features, and thermal behavior.

When it matters: When you want to compare processors based on technical performance and available features.

Score components:

60.0%

?

Performance

18.0%

?

Cache & Architecture

10.0%

?

Memory & PCIe

7.0%

?

Power & Thermal

4.0%

?

Platform

1.0%

?

Integrated Graphics

8.6
Intel Core Ultra 9 285HX has a technical score of 8.63 points, which is higher than that of 98.9% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the processor.

When it matters: When you want to know how a processor performs in real workloads and how reliable it is for gaming, productivity, and efficiency according to user feedback.

Score components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
What it is: An indicator based on the number of reviews received by the processor.
When it matters: When you prefer to choose a processor reviewed and selected by many other buyers.
1.0
Intel Core Ultra 9 285HX has a popularity of 1 points, which is higher than 0% of products in this category.
Ratio quality/price

What it is: An indicator that combines the processor's overall rating with its cost.

When it matters: When you are looking for a processor with a good balance between performance, efficiency, and price.

Score components:

60.0%

8.6

Overall score

40.0%

7.6

Price

8.3
Intel Core Ultra 9 285HX has a quality-to-price ratio of 8.3 points, which is higher than 98.1% of products in this category.
Brand name
What it is: The manufacturer or brand of the product.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

Intel
Processor type
What it is: The kind of system the processor is built for, such as desktop PCs, laptops, workstations, or servers.
When it matters: When you want a processor meant for the kind of machine you are actually building or buying, rather than a chip aimed at a different class of system.

Importance: HIGH

mobile
Intel Core Ultra 9 285HX belongs to the mobile processor class, which is more advanced than that of 7.3% of processors and equal to that of 48.6% of processors.
CPU socket
What it is: The physical socket the processor fits into on the motherboard.
When it matters: When you need to make sure the CPU can actually be installed on a specific motherboard.

Importance: HIGH

FCBGA2114
Intel Core Ultra 9 285HX uses the FCBGA2114 CPU socket, which is older than that of 65.4% of processors and equal to that of 0.4% of processors.
Chipset
What it is: The motherboard chipset families officially meant to work with the processor.
When it matters: When you are checking whether a CPU will work with the motherboard features and platform you plan to use.

Importance: HIGH

HM870, WM880
Intel Core Ultra 9 285HX supports HM870, WM880 chipsets, which is narrower compatibility than 62.6% of processors and equal to that of 0.7% of processors.
CPU architecture
What it is: The processor family or design generation behind the chip, such as Zen 4 or Raptor Lake.
When it matters: When you are comparing CPUs across generations and want a clearer sense of their design age, feature level, and expected performance class.

Importance: HIGH

x86-64
Intel Core Ultra 9 285HX uses the x86-64 architecture, which is more advanced than that of 1.7% of processors and equal to that of 98.3% of processors.
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N. of physical cores
What it is: The number of physical CPU cores on the processor.
When it matters: When you run workloads that benefit from more real cores.

Importance: HIGH

Good value: 8+

24
Intel Core Ultra 9 285HX has 24 CPU cores, which is more than 96.6% of processors and equal to 2.1% of processors.
CPU threads
What it is: The total number of processing threads the CPU can handle at once.
When it matters: When you run heavily threaded workloads or multitask a lot.

Importance: HIGH

Good value: 16+

24
Intel Core Ultra 9 285HX offers 24 CPU threads, which is more than 90.3% of processors and equal to 4% of processors.
Threads per core
What it is: The number of threads each physical core can handle at once.
When it matters: When you want to understand how much thread-level parallelism each core can provide in multitasking or heavily threaded work.

Importance: MEDIUM

Good value: 2

1
Intel Core Ultra 9 285HX offers 1 threads per core, which is fewer than 69.7% of processors and equal to 30.3% of processors.
CPU boost clock speed
What it is: The highest clock speed the processor can reach under boost conditions.
When it matters: When you care about peak speed in short bursts.

Importance: HIGH

Good value: >4.7 GHz

5.5 GHz
Intel Core Ultra 9 285HX reaches a boost clock of 5.5 GHz which is higher than that of 97.6% of processors and equal to that of 0.7% of processors.
CPU base clock speed
What it is: The processor's normal all-core starting frequency before boost behavior raises clocks temporarily.
When it matters: When you care about steadier performance in longer workloads rather than short burst speed alone.

Importance: MEDIUM

8 x 2.8 GHz & 16 x 2.1 GHz
Intel Core Ultra 9 285HX has a base clock of 8x2.8 GHz & 16x2.1 GHz which is equal to that of 100% of processors.
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Semiconductor size
What it is: The manufacturing process node used to produce the processor, usually expressed in nanometers.
When it matters: When efficiency, heat, and the relative modernity of the chip-making process matter to your comparison.

Importance: HIGH

Good value: <10 nm

3 nm
Intel Core Ultra 9 285HX uses a 3 nm process node, which is more advanced than that of 96% of processors and equal to that of 4% of processors.
Foundry
What it is: The semiconductor manufacturer that physically fabricates the processor chip.
When it matters: When process source, manufacturing generation, or foundry differences matter to your comparison more than day-to-day performance alone.

Importance: MEDIUM

TSMC 3 nm
Intel Core Ultra 9 285HX is built on the TSMC 3 nm foundry process, which is more advanced than that of 96.2% of processors and equal to that of 3.8% of processors.
L3 cache
What it is: The total amount of L3 cache available on the processor.
When it matters: When you want better performance in cache-sensitive workloads and games.

Importance: MEDIUM

Good value: >=16 MB

36 MB
Intel Core Ultra 9 285HX has an L3 cache of 36 MB which is larger than that of 92.7% of processors and equal to that of 1.8% of processors.
L2 cache
What it is: The total amount of L2 cache available across the processor.
When it matters: When you want to compare CPU design efficiency and how much fast intermediate cache the cores have available.

Importance: MEDIUM

Good value: >=6 MB

40 MB
Intel Core Ultra 9 285HX has an L2 cache of 40 MB which is larger than that of 99% of processors and equal to that of 0.3% of processors.
L1 cache
What it is: The total amount of L1 cache built into the processor, which sits closest to the cores.
When it matters: When you are comparing low-level CPU design details rather than the broader performance picture buyers usually notice first.

Importance: MEDIUM

Good value: >=512 KB

?
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DDR memory version
What it is: The RAM generation the processor is designed to support, such as DDR4 or DDR5.
When it matters: When you need the CPU to match the kind of memory platform you want to buy or reuse.

Importance: MEDIUM

Good value: DDR5

DDR5
Intel Core Ultra 9 285HX supports DDR DDR5, which is newer than that of 66.4% of processors and equal to that of 12.6% of processors.
Maximum memory speed
What it is: The highest official memory speed supported by the processor.
When it matters: When you choose RAM and want to know the supported speed ceiling.

Importance: HIGH

Good value: >=4800 MHz

6,400 MHz
Intel Core Ultra 9 285HX supports memory speeds up to 6400 MHz, which is higher than that of 83.9% of processors and equal to 8.1% of processors.
Max memory speed (JEDEC)
What it is: The highest official RAM speed the processor supports under standard JEDEC settings, before any memory overclocking profiles are applied.
When it matters: When officially supported stock RAM speed matters more than XMP, EXPO, or manual memory tuning.

Importance: MEDIUM

Good value: >=5600 MHz

DDR5-6400 MHz
Intel Core Ultra 9 285HX supports JEDEC memory speeds up to DDR5-6400 MHz, which is higher than that of 88.5% of processors and equal to 2.4% of processors.
Max memory speed (XMP / EXPO)
What it is: The highest memory speed supported through XMP or EXPO profiles.
When it matters: When you want faster RAM through memory profiles.

Importance: MEDIUM

Good value: >=5200 MHz

6,400 MHz
Intel Core Ultra 9 285HX supports XMP/EXPO memory speeds up to 6400 MHz, which is higher than that of 97.3% of processors and equal to 2% of processors.
Maximum memory capacity
What it is: The largest total amount of memory officially supported by the processor.
When it matters: When you plan a system with very large RAM capacity.

Importance: HIGH

Good value: >=128 GB

256 GB
Intel Core Ultra 9 285HX supports up to 256 GB of memory, which is more than 89.4% of processors and equal to 8.3% of processors.
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Integrated graphics
What it is: Includes built-in graphics, so the system can output video without a separate graphics card.
When it matters: When you want the PC to work without a dedicated GPU, or you are building an office, media, compact, or troubleshooting-friendly system.

Importance: HIGH

yes
Intel Core Ultra 9 285HX includes integrated graphics. 87.6% of processors include integrated graphics.
Integrated GPU model
What it is: The model name of the integrated graphics processor, if present.
When it matters: When you plan to use the CPU's built-in graphics.

Importance: MEDIUM

Intel Arc Xe-LPG Graphics 64EU
Intel Core Ultra 9 285HX uses the Intel Arc Xe-LPG Graphics 64EU integrated GPU, which is more advanced than that in 84.8% of processors and equal to that in 1.3% of processors.
Integrated GPU execution units
What it is: The number of execution units available in the integrated graphics part of the processor.
When it matters: When you plan to rely on built-in graphics and want a better sense of its light gaming, display, or media capability.

Importance: MEDIUM

Good value: >=24

64
Intel Core Ultra 9 285HX has 64 GPU execution units, which is more than 87.4% of processors and equal to 3.5% of processors.
Integrated GPU base frequency
What it is: The base operating frequency of the integrated GPU.
When it matters: When integrated graphics performance matters to you.

Importance: MEDIUM

Good value: >=350 MHz

300 MHz
Intel Core Ultra 9 285HX has an integrated GPU clock of 300 MHz which is lower than that of 57% of processors and equal to that of 38.7% of processors.
Integrated media encoders/decoders
What it is: The hardware media formats the processor can encode or decode directly.
When it matters: When you stream, edit video, or rely on hardware media acceleration.

Importance: LOW

AV1 (HW decode)
Intel Core Ultra 9 285HX supports AV1 (HW decode) media codecs, which is narrower support than 63.1% of processors and equal to 10.8% of processors.
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TDP (Thermal design power)
What it is: The rated thermal design power, which gives a general idea of cooling and power needs.
When it matters: When you choose a cooler or build in a tighter case.

Importance: HIGH

Good value: <30 W

55 W
Intel Core Ultra 9 285HX has a TDP of 55 W which is higher than that of 63.9% of processors and equal to that of 4.2% of processors.
Base power (PL1)
What it is: The sustained power target used for longer CPU loads.
When it matters: When you choose cooling and power delivery for sustained workloads.

Importance: MEDIUM

Good value: <30 W

55 W
Intel Core Ultra 9 285HX has a base power of 55 W which is higher than that of 64.1% of processors and equal to that of 4.1% of processors.
Boost power (PL2)
What it is: The short-term boost power limit the processor may draw under heavier turbo loads.
When it matters: When you size cooling and power delivery for peak turbo behavior.

Importance: MEDIUM

Good value: <50 W

160 W
Intel Core Ultra 9 285HX has a boost power of 160 W which is higher than that of 89.9% of processors and equal to that of 0.6% of processors.
Tau (power duration limit)
What it is: The time limit the CPU can stay at higher boost power before dropping toward sustained power.
When it matters: When you want to understand turbo behavior under longer loads.

Importance: MEDIUM

Good value: <=28 s

28 seconds
Intel Core Ultra 9 285HX has a turbo duration of 28 seconds which is longer than that of 3.8% of processors and equal to that of 85% of processors.
Configurable TDP
What it is: Allows the processor to run in alternate power modes instead of being fixed to one default TDP target.
When it matters: When you want more control over heat, noise, and power draw in compact systems, quieter builds, or thermally limited machines.

Importance: LOW

no
Intel Core Ultra 9 285HX does not support configurable TDP. 52.9% of processors support configurable TDP.
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Intel Core Ultra 9 285HX vs the average processor

  • 4.56x higher multi-core score
    Intel Core Ultra 9 285HX has a higher Geekbench 6 multi-core score than the average processor (21,851 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.
    What it is: A Geekbench 6 score that reflects multi-core CPU performance in mixed modern workloads.
    When it matters: When you want a quick picture of multi-core speed in everyday mixed workloads, multitasking, and broadly optimized software.

    Importance: HIGH

    Good value: >8500

    Intel Core Ultra 9 285HX has a higher Geekbench 6 multi-core score than the average processor (21,851 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.21,851 vs 4,793
  • 18 more CPU cores
    Intel Core Ultra 9 285HX has more CPU cores than the average processor (24 vs 6). The average processor has 6 CPU cores.
    What it is: The number of physical CPU cores on the processor.
    When it matters: When you run workloads that benefit from more real cores.

    Importance: HIGH

    Good value: 8+

    Intel Core Ultra 9 285HX has more CPU cores than the average processor (24 vs 6). The average processor has 6 CPU cores.24 vs 6
  • 5.45x higher PassMark score
    Intel Core Ultra 9 285HX has a higher PassMark benchmark score than the average processor (57,401 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.
    What it is: A benchmark score that gives a broad idea of overall processor performance.
    When it matters: When you want a quick overall performance comparison.

    Importance: HIGH

    Good value: >19000

    Intel Core Ultra 9 285HX has a higher PassMark benchmark score than the average processor (57,401 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.57,401 vs 10,532.5
  • 86.3% better single-core performance
    Intel Core Ultra 9 285HX has a higher PassMark single-core score than the average processor (4,626 vs 2,483). The average processor scores 2,483 in PassMark single-core.
    What it is: A benchmark score that reflects single-core CPU performance.
    When it matters: When you care about responsiveness in lighter or older software.

    Importance: HIGH

    Good value: >3200

    Intel Core Ultra 9 285HX has a higher PassMark single-core score than the average processor (4,626 vs 2,483). The average processor scores 2,483 in PassMark single-core.4,626 vs 2,483
  • 2.18x higher single-core score
    Intel Core Ultra 9 285HX has a higher Geekbench 6 single-core score than the average processor (3,204 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
    What it is: A Geekbench 6 score that reflects single-core CPU performance in mixed modern workloads.
    When it matters: When you care about snappy everyday performance in lighter apps, browsing, office work, or tasks that do not scale well across many cores.

    Importance: HIGH

    Good value: >2000

    Intel Core Ultra 9 285HX has a higher Geekbench 6 single-core score than the average processor (3,204 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.3,204 vs 1,471
  • 27.9% higher boost clock
    Intel Core Ultra 9 285HX has a higher boost clock speed than the average processor (5.5 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.
    What it is: The highest clock speed the processor can reach under boost conditions.
    When it matters: When you care about peak speed in short bursts.

    Importance: HIGH

    Good value: >4.7 GHz

    Intel Core Ultra 9 285HX has a higher boost clock speed than the average processor (5.5 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.5.5 GHz vs 4.3 GHz
  • 16x larger L2 cache
    Intel Core Ultra 9 285HX has a higher L2 cache than the average processor (40 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.
    What it is: The total amount of L2 cache available across the processor.
    When it matters: When you want to compare CPU design efficiency and how much fast intermediate cache the cores have available.

    Importance: MEDIUM

    Good value: >=6 MB

    Intel Core Ultra 9 285HX has a higher L2 cache than the average processor (40 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.40 MB vs 2.5 MB
  • 16 more CPU threads
    Intel Core Ultra 9 285HX has more CPU threads than the average processor (24 vs 8). The average processor has 8 CPU threads.
    What it is: The total number of processing threads the CPU can handle at once.
    When it matters: When you run heavily threaded workloads or multitask a lot.

    Importance: HIGH

    Good value: 16+

    Intel Core Ultra 9 285HX has more CPU threads than the average processor (24 vs 8). The average processor has 8 CPU threads.24 vs 8
  • 5 year/s newer release date
    Intel Core Ultra 9 285HX has a newer release date than the average processor (2,025 vs 2,020).
  • Includes crypto acceleration
    Intel Core Ultra 9 285HX includes crypto acceleration, the average processor does not.
  • Supports HMP
    Intel Core Ultra 9 285HX supports HMP, the average processor does not.
  • 4.56x higher multi-core score
    Intel Core Ultra 9 285HX has a higher Geekbench 6 multi-core score than the average processor (21,851 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.
  • 18 more CPU cores
    Intel Core Ultra 9 285HX has more CPU cores than the average processor (24 vs 6). The average processor has 6 CPU cores.
  • 5.45x higher PassMark score
    Intel Core Ultra 9 285HX has a higher PassMark benchmark score than the average processor (57,401 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.
  • 86.3% better single-core performance
    Intel Core Ultra 9 285HX has a higher PassMark single-core score than the average processor (4,626 vs 2,483). The average processor scores 2,483 in PassMark single-core.
  • 2.18x higher single-core score
    Intel Core Ultra 9 285HX has a higher Geekbench 6 single-core score than the average processor (3,204 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
  • 27.9% higher boost clock
    Intel Core Ultra 9 285HX has a higher boost clock speed than the average processor (5.5 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.
  • 16 more CPU threads
    Intel Core Ultra 9 285HX has more CPU threads than the average processor (24 vs 8). The average processor has 8 CPU threads.
  • Unlocked for overclocking
    Intel Core Ultra 9 285HX has an unlocked multiplier, the average processor does not.
  • 4 wider front-end design
    Intel Core Ultra 9 285HX has a higher front-end width than the average processor (8 vs 4). The average processor uses front-end width of 4.
  • 16x larger L2 cache
    Intel Core Ultra 9 285HX has a higher L2 cache than the average processor (40 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.
  • More advanced microarchitecture
    Intel Core Ultra 9 285HX uses a more advanced microarchitecture than the average processor (Arrow Lake vs Kaby Lake).
  • 6x more L2 per core
    Intel Core Ultra 9 285HX has more L2 cache per core than the average processor (3 MB/core vs 0.5 MB/core). The average processor provides 0.5 MB/core of L2 cache per core.
  • 4.5x larger L3 cache
    Intel Core Ultra 9 285HX has a higher L3 cache than the average processor (36 MB vs 8 MB). The average processor has L3 cache of 8 MB.
  • 75% smaller process node
    Intel Core Ultra 9 285HX has a lower process node than the average processor (3 nm vs 12 nm). The average processor uses a process node of 12 nm.
  • Uses big.LITTLE design
    Intel Core Ultra 9 285HX uses a big.LITTLE design, the average processor does not.
  • More advanced foundry
    Intel Core Ultra 9 285HX uses a more advanced foundry process than the average processor (TSMC 3 nm vs Intel 14 nm).
  • 3.6x more transistors
    Intel Core Ultra 9 285HX has more transistors than the average processor (17.8 billion vs 4.95 billion). The average processor has 4.95 billion transistors.
  • Newer PCIe version
    Intel Core Ultra 9 285HX supports a newer PCIe version than the average processor (5 vs 3.0).
  • 8 more PCIe lanes
    Intel Core Ultra 9 285HX has more PCIe lanes than the average processor (24 vs 16). The average processor offers 16 PCIe lanes.
  • 4x more memory capacity
    Intel Core Ultra 9 285HX has more maximum memory capacity than the average processor (256 GB vs 64 GB). The average processor supports 64 GB of memory.
  • 2.24x higher memory bandwidth
    Intel Core Ultra 9 285HX has a higher memory bandwidth than the average processor (102.4 GB/s vs 45.8 GB/s). The average processor offers memory bandwidth of 45.8 GB/s.
  • 2.18x higher memory speed
    Intel Core Ultra 9 285HX has a higher maximum memory speed than the average processor (6,400 MHz vs 2,933 MHz). The average processor supports memory speed of 2,933 MHz.
  • Supports memory overclocking
    Intel Core Ultra 9 285HX supports memory overclocking, the average processor does not.
  • Newer DDR support
    Intel Core Ultra 9 285HX supports a newer DDR generation than the average processor (DDR5 vs DDR4).
  • Supports ECC memory
    Intel Core Ultra 9 285HX supports ECC memory, the average processor does not.
  • 2.67x more GPU execution units
    Intel Core Ultra 9 285HX has more GPU execution units than the average processor (64 vs 24). The average processor has 24 GPU execution units.
  • 1 more supported displays
    Intel Core Ultra 9 285HX has more supported displays than the average processor (4 vs 3). The average processor supports 3 displays.
  • 5 °C higher TJ Max
    Intel Core Ultra 9 285HX has a higher TJ Max than the average processor (105 °C vs 100 °C). The average processor has a TJ Max of 100 °C.

Total
Overall
Platform
Performance
Cache & Architecture
Memory & PCIe
Integrated Graphics
Power & Thermal
  • Narrower instruction support
    Intel Core Ultra 9 285HX supports a narrower instruction set than the average processor (MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).
  • No multithreading support
    Intel Core Ultra 9 285HX does not support multithreading, the average processor does.
  • 1 fewer threads per core
    Intel Core Ultra 9 285HX has fewer threads per core than the average processor (1 vs 2). The average processor offers 2 threads per core.
  • 36.5% larger die size
    Intel Core Ultra 9 285HX has a higher die size than the average processor (243 mm² vs 178 mm²). The average processor has a die size of 178 mm².
  • 12.5% less L3 per core
    Intel Core Ultra 9 285HX has less L3 cache per core than the average processor (1.5 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.
  • Narrower media codec support
    Intel Core Ultra 9 285HX supports fewer media codecs than the average processor (AV1 (HW decode) vs H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode)).
  • 2.5x higher boost power
    Intel Core Ultra 9 285HX has a higher boost power draw than the average processor (160 W vs 64 W). The average processor has a boost power draw of 64 W.
  • No configurable TDP
    Intel Core Ultra 9 285HX does not support configurable TDP, the average processor does.
  • 5 °C higher CPU temperature
    Intel Core Ultra 9 285HX has a higher CPU temperature than the average processor (105 °C vs 100 °C). The average processor runs at a CPU temperature of 100 °C.
  • 22.2% higher base power
    Intel Core Ultra 9 285HX has a higher base power draw than the average processor (55 W vs 45 W). The average processor has a base power draw of 45 W.
  • 22.2% higher TDP
    Intel Core Ultra 9 285HX has a higher TDP than the average processor (55 W vs 45 W). The average processor has a TDP of 45 W.
  • 2.5x higher boost power
    Intel Core Ultra 9 285HX has a higher boost power draw than the average processor (160 W vs 64 W). The average processor has a boost power draw of 64 W.
    What it is: The short-term boost power limit the processor may draw under heavier turbo loads.
    When it matters: When you size cooling and power delivery for peak turbo behavior.

    Importance: MEDIUM

    Good value: <50 W

    Intel Core Ultra 9 285HX has a higher boost power draw than the average processor (160 W vs 64 W). The average processor has a boost power draw of 64 W.160 W vs 64 W
  • No multithreading support
    Intel Core Ultra 9 285HX does not support multithreading, the average processor does.
    What it is: Lets each physical core run more than one thread at the same time, such as with Hyper-Threading or SMT.
    When it matters: When multitasking, rendering, compiling, virtualization, or other thread-heavy work benefits from more total processing threads.

    Importance: HIGH

    Intel Core Ultra 9 285HX does not support multithreading, the average processor does.
  • 36.5% larger die size
    Intel Core Ultra 9 285HX has a higher die size than the average processor (243 mm² vs 178 mm²). The average processor has a die size of 178 mm².
    What it is: The physical area of the processor die, usually measured in square millimeters.
    When it matters: When you are comparing chip scale, packaging density, or broader design differences rather than direct user-visible performance.

    Importance: LOW

    Good value: <150 mm²

    Intel Core Ultra 9 285HX has a higher die size than the average processor (243 mm² vs 178 mm²). The average processor has a die size of 178 mm².243 mm² vs 178 mm²
  • No configurable TDP
    Intel Core Ultra 9 285HX does not support configurable TDP, the average processor does.
    What it is: Allows the processor to run in alternate power modes instead of being fixed to one default TDP target.
    When it matters: When you want more control over heat, noise, and power draw in compact systems, quieter builds, or thermally limited machines.

    Importance: LOW

    Intel Core Ultra 9 285HX does not support configurable TDP, the average processor does.
  • Narrower media codec support
    Intel Core Ultra 9 285HX supports fewer media codecs than the average processor (AV1 (HW decode) vs H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode)).
    What it is: The hardware media formats the processor can encode or decode directly.
    When it matters: When you stream, edit video, or rely on hardware media acceleration.

    Importance: LOW

    Intel Core Ultra 9 285HX supports fewer media codecs than the average processor (AV1 (HW decode) vs H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode)).AV1 (HW decode) vs H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode)
  • 12.5% less L3 per core
    Intel Core Ultra 9 285HX has less L3 cache per core than the average processor (1.5 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.
    What it is: The amount of L3 cache effectively available per CPU core.
    When it matters: When you are comparing how much shared cache each core can draw on in deeper technical analysis.

    Importance: MEDIUM

    Good value: >=2 MB/core

    Intel Core Ultra 9 285HX has less L3 cache per core than the average processor (1.5 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.1.5 MB/core vs 1.714 MB/core
  • 2.24x more expensive
    Intel Core Ultra 9 285HX is more expensive than the average processor (£560 vs £250).
    Intel Core Ultra 9 285HX is more expensive than the average processor (£560 vs £250).£560 vs £250
  • 5 °C higher CPU temperature
    Intel Core Ultra 9 285HX has a higher CPU temperature than the average processor (105 °C vs 100 °C). The average processor runs at a CPU temperature of 100 °C.
    What it is: The reported operating temperature of the processor.
    When it matters: When you monitor thermals, cooling, or system stability.

    Importance: LOW

    Good value: <100 °C

    Intel Core Ultra 9 285HX has a higher CPU temperature than the average processor (105 °C vs 100 °C). The average processor runs at a CPU temperature of 100 °C.105 °C vs 100 °C
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Power & Thermal

Graphic comparison of Intel Core Ultra 9 285HX and other processors

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Third-party reviews

What customers like about Intel Core Ultra 9 285HX?

  • Exceptional multi-core performance suitable for demanding productivity tasks like 3D rendering and video editing
  • Improved power efficiency compared to previous 14th Gen Raptor Lake-HX processors due to the 3nm manufacturing process
  • Support for high-speed DDR5-6400 memory and cutting-edge PCIe Gen 5 connectivity
  • Maintains lower operating temperatures and stable clock speeds even under sustained heavy loads
  • Features a robust 24-core hybrid architecture (8 Performance, 16 Efficiency) with high boost clocks up to 5.5 GHz

What customers dislike about Intel Core Ultra 9 285HX?

  • Gaming performance shows minimal gains over the previous generation Core i9-14900HX
  • Neural Processing Unit (NPU) is relatively weak (13 TOPS), falling short of Microsoft's Copilot+ PC requirement of 40 TOPS
  • Laptops featuring this chip are typically very expensive and lack impressive battery life compared to Apple's M-series alternatives
  • High inter-core latency can sometimes lead to inconsistent results in latency-sensitive applications

Expert reviews

T
tweaktown.com
06/08/2025
Intel Core Ultra 9 285HX vs. 285K CPUs Head-to-Head

The Intel Core Ultra 9 285HX brings near-desktop-class performance to laptops, trailing the 285K by only 12 seconds in long Blender renders. While offering strong multi-threaded efficiency for workstations, the chip requires significant cooling, frequently hitting 100°C under load. Gaming performance is considered a backward step due to memory latency, and the high cost makes it a...Read more

L
laptopmedia.com
01/03/2026
Intel Core Ultra 9 285HX - LaptopMedia Benchmarks

The Intel Core Ultra 9 285HX is a high-end, 24-core (8 E) mobile processor based on the Arrow Lake architecture, designed for top-tier gaming laptops and workstations. Key features include 5.5 GHz boost clocks, 40MB L2 cache, an integrated NPU for AI, and DDR5-6400 memory support. Pros include exceptional multi-threaded performance for rendering and video encoding, alongside better...Read more

0
01net.com
28/03/2026
Intel Core Ultra 9 285H Review: Our Verdict (Note: This article compares the 285H performance with the expected benchmarks of the 285HX)

The Intel Core Ultra 9 285H, reviewed by 01net, debuts as a high-performance, 3nm Arrow Lake-H chip delivering 20-32% higher multi-core performance over its predecessor with notable improvements in energy efficiency. The processor excels in multi-threaded tasks and provides significant battery longevity, often exceeding 14 hours in mixed usage scenarios. 01 The integrated Intel Arc...Read more

(Translated)Show original
V
valid.x86.fr
01/03/2026
CPU-Z Single-Thread Benchmark for Intel Core Ultra 9 285HX

The CPU-Z benchmark result at valid.x86.fr/bench/pyexvk offers a quick, accessible assessment of single-thread and multi-thread performance using scalar SSE/SSE2 instructions. As a pro, CPU-Z provides an instant, lightweight method to verify CPU, RAM, and BIOS specifications, while its cons include limited scope due to the small, L1-cache-focused test size, which fails to reflect...Read more

(Translated)Show original
P
profesionalreview.com
22/05/2025
Intel Core Ultra 9 285HX for Workstations: All the Performance Secrets

The Intel Core Ultra 9 285HX is featured as a premier 24-core "Arrow Lake" processor for mobile workstations, capable of reaching 5.5 GHz and delivering exceptional multi-core performance for professional rendering. Built on a 3nm process, the chip offers improved efficiency over previous generations, along with stronger integrated Arc graphics. However, its 13 TOPS NPU fails to...Read more

(Translated)Show original
L
laptopmedia.com
29/03/2025
Intel Core Ultra 9 285HX - LaptopMedia

The Intel Core Ultra 9 285HX is a high-end 24-core mobile processor based on the Arrow Lake architecture, utilizing 3nm TSMC manufacturing to significantly improve efficiency and multi-core performance for professional laptops. Featuring 8 Lion Cove cores and 16 Skymont cores with a 5.5 GHz turbo, the processor delivers strong multi-core benchmarks in Cinebench 2024, supported by...Read more

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T
techgaming.nl
11/07/2026
MSI Titan 18 HX AI A2XWJG-492NL Review

The TechGaming review identifies the MSI Titan 18 HX AI (A2XWJG-492NL) as a premier desktop replacement, featuring an Intel Core Ultra 9 285HX, NVIDIA RTX 5090 (175W), and a stunning 18-inch 4K Mini LED display that delivers unmatched mobile performance. Key physical features include a tactile mechanical keyboard with Cherry MX switches and robust connectivity via Thunderbolt 5 and...Read more

(Translated)Show original

Video reviews

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