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Intel Core Ultra 9 275HX Review | 78 Data compared

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  • Avg. price: ~£1,630
  • PassMark benchmark result: 55982
  • N. of physical cores: 24
  • CPU boost clock speed: 5.4 GHz

Intel Core Ultra 9 275HX 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%

8.8

Performance

18.0%

8.7

Cache & Architecture

10.0%

9.1

Memory & PCIe

7.0%

5.4

Power & Thermal

4.0%

8.2

Platform

1.0%

8.5

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

  • 8.5
    Gaming

    Score components:

    30.0%

    9.4

    PassMark single-core benchmark score

    25.0%

    8.2

    Geekbench 6 single-core benchmark score

    20.0%

    8.8

    CPU boost clock speed

    17.0%

    6.1

    L3 cache

    8.0%

    10

    N. of physical cores

  • 8.5
    Video editing

    Score components:

    45.0%

    9.1

    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~ £1,630

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 275HX is a high-end mobile processor from the Arrow Lake series, featuring a 24-core, 24-thread configuration with 8 performance cores (Lion Cove) reaching up to 5.4 GHz and 16 efficiency cores (Skymont) at up to 4.6 GHz. Built on a 3nm process, it includes 40MB of L2 cache, 36MB of L3 cache, a dedicated 13 TOPS NPU for AI workloads, and supports up to 192GB of DDR5-6400 memory. Its main strengths include exceptional single-threaded gaming performance, high multi-core efficiency at lower power envelopes (15W–75W), and significantly improved thermals compared to previous generations. However, it lacks hyper-threading, can reach a high maximum turbo power of 160W, and is often outperformed in heavy rendering tasks and peak multi-core gaming benchmarks by competitors like the AMD Ryzen 9 9955HX3D.

Technical Specifications of processor Intel Core Ultra 9 275HX

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 275HX has a technical score of 8.57 points, which is higher than that of 98.4% 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 275HX 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%

1.9

Price

6.6
Intel Core Ultra 9 275HX has a quality-to-price ratio of 6.6 points, which is higher than 57.6% 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 275HX 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 275HX 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 275HX 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 275HX 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 275HX 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 275HX 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 275HX 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

5.4 GHz
Intel Core Ultra 9 275HX reaches a boost clock of 5.4 GHz which is higher than that of 94.9% of processors and equal to that of 2.6% 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 2.7 GHz & 16 x 2.1 GHz
Intel Core Ultra 9 275HX has a base clock of 8x2.7 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 275HX 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 275HX 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 275HX 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 275HX 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

2,432 KB
Intel Core Ultra 9 275HX has an L1 cache of 2432 KB which is larger than that of 97.9% of processors.
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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 275HX 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 275HX 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 275HX 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

?
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

192 GB
Intel Core Ultra 9 275HX supports up to 192 GB of memory, which is more than 83.3% of processors and equal to 6% 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 275HX includes integrated graphics. 87.6% of processors include integrated graphics.
Intel Arc 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 275HX 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 275HX 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 275HX 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

H.264 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode/encode), JPEG (HW decode)
Intel Core Ultra 9 275HX supports H.264 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode/encode), JPEG (HW decode) media codecs, which is broader support than 76% 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 275HX 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 275HX 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 275HX 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 275HX 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

yes
Intel Core Ultra 9 275HX supports configurable TDP. 52.9% of processors support configurable TDP.
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Intel Core Ultra 9 275HX vs the average processor

  • 18 more CPU cores
    Intel Core Ultra 9 275HX 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 275HX has more CPU cores than the average processor (24 vs 6). The average processor has 6 CPU cores.24 vs 6
  • 4.32x higher multi-core score
    Intel Core Ultra 9 275HX has a higher Geekbench 6 multi-core score than the average processor (20,707 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 275HX has a higher Geekbench 6 multi-core score than the average processor (20,707 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.20,707 vs 4,793
  • 90.5% better single-core performance
    Intel Core Ultra 9 275HX has a higher PassMark single-core score than the average processor (4,731 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 275HX has a higher PassMark single-core score than the average processor (4,731 vs 2,483). The average processor scores 2,483 in PassMark single-core.4,731 vs 2,483
  • 5.32x higher PassMark score
    Intel Core Ultra 9 275HX has a higher PassMark benchmark score than the average processor (55,982 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 275HX has a higher PassMark benchmark score than the average processor (55,982 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.55,982 vs 10,532.5
  • 91.8% higher single-core score
    Intel Core Ultra 9 275HX has a higher Geekbench 6 single-core score than the average processor (2,821 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 275HX has a higher Geekbench 6 single-core score than the average processor (2,821 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.2,821 vs 1,471
  • 25.6% higher boost clock
    Intel Core Ultra 9 275HX has a higher boost clock speed than the average processor (5.4 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 275HX has a higher boost clock speed than the average processor (5.4 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.5.4 GHz vs 4.3 GHz
  • 16x larger L2 cache
    Intel Core Ultra 9 275HX 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 275HX 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 275HX 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 275HX 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 275HX has a newer release date than the average processor (2,025 vs 2,020).
  • Includes crypto acceleration
    Intel Core Ultra 9 275HX includes crypto acceleration, the average processor does not.
  • Supports HMP
    Intel Core Ultra 9 275HX supports HMP, the average processor does not.
  • 18 more CPU cores
    Intel Core Ultra 9 275HX has more CPU cores than the average processor (24 vs 6). The average processor has 6 CPU cores.
  • 4.32x higher multi-core score
    Intel Core Ultra 9 275HX has a higher Geekbench 6 multi-core score than the average processor (20,707 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.
  • 90.5% better single-core performance
    Intel Core Ultra 9 275HX has a higher PassMark single-core score than the average processor (4,731 vs 2,483). The average processor scores 2,483 in PassMark single-core.
  • 5.32x higher PassMark score
    Intel Core Ultra 9 275HX has a higher PassMark benchmark score than the average processor (55,982 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.
  • 91.8% higher single-core score
    Intel Core Ultra 9 275HX has a higher Geekbench 6 single-core score than the average processor (2,821 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
  • 25.6% higher boost clock
    Intel Core Ultra 9 275HX has a higher boost clock speed than the average processor (5.4 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.
  • 16 more CPU threads
    Intel Core Ultra 9 275HX 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 275HX has an unlocked multiplier, the average processor does not.
  • 4 wider front-end design
    Intel Core Ultra 9 275HX 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 275HX 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 275HX uses a more advanced microarchitecture than the average processor (Arrow Lake vs Kaby Lake).
  • 6x more L2 per core
    Intel Core Ultra 9 275HX 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 275HX 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 275HX 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 275HX uses a big.LITTLE design, the average processor does not.
  • More advanced foundry
    Intel Core Ultra 9 275HX uses a more advanced foundry process than the average processor (TSMC 3 nm vs Intel 14 nm).
  • 6.33x larger L1 cache
    Intel Core Ultra 9 275HX has a higher L1 cache than the average processor (2,432 KB vs 384 KB). The average processor has L1 cache of 384 KB.
  • 3.6x more transistors
    Intel Core Ultra 9 275HX 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 275HX supports a newer PCIe version than the average processor (5 vs 3.0).
  • 8 more PCIe lanes
    Intel Core Ultra 9 275HX has more PCIe lanes than the average processor (24 vs 16). The average processor offers 16 PCIe lanes.
  • 2.24x higher memory bandwidth
    Intel Core Ultra 9 275HX 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.
  • 3x more memory capacity
    Intel Core Ultra 9 275HX has more maximum memory capacity than the average processor (192 GB vs 64 GB). The average processor supports 64 GB of memory.
  • 2.18x higher memory speed
    Intel Core Ultra 9 275HX 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 275HX supports memory overclocking, the average processor does not.
  • Newer DDR support
    Intel Core Ultra 9 275HX supports a newer DDR generation than the average processor (DDR5 vs DDR4).
  • 3x more memory per DIMM
    Intel Core Ultra 9 275HX has more memory per DIMM than the average processor (96 GB vs 32 GB). The average processor supports 32 GB of memory per DIMM.
  • 2.67x more GPU execution units
    Intel Core Ultra 9 275HX has more GPU execution units than the average processor (64 vs 24). The average processor has 24 GPU execution units.
  • 5 °C higher TJ Max
    Intel Core Ultra 9 275HX 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
Platform
Performance
Cache & Architecture
Memory & PCIe
Integrated Graphics
Power & Thermal
  • Narrower instruction support
    Intel Core Ultra 9 275HX supports a narrower instruction set than the average processor (MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX2, 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 275HX does not support multithreading, the average processor does.
  • 1 fewer threads per core
    Intel Core Ultra 9 275HX 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 275HX 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 275HX 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.
  • 2.5x higher boost power
    Intel Core Ultra 9 275HX 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.
  • 5 °C higher CPU temperature
    Intel Core Ultra 9 275HX 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 275HX 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 275HX 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 275HX 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 275HX 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 275HX 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 275HX does not support multithreading, the average processor does.
  • 36.5% larger die size
    Intel Core Ultra 9 275HX 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 275HX 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
  • 6.52x more expensive
    Intel Core Ultra 9 275HX is more expensive than the average processor (£1,630 vs £250).
    Intel Core Ultra 9 275HX is more expensive than the average processor (£1,630 vs £250).£1,630 vs £250
  • 12.5% less L3 per core
    Intel Core Ultra 9 275HX 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 275HX 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
  • 5 °C higher CPU temperature
    Intel Core Ultra 9 275HX 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 275HX 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
  • Narrower instruction support
    Intel Core Ultra 9 275HX supports a narrower instruction set than the average processor (MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX2, FMA3, AES, SHA vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).
    What it is: The supported CPU instruction sets and extensions.
    When it matters: When you run software that depends on specific CPU instructions.

    Importance: MEDIUM

    Intel Core Ultra 9 275HX supports a narrower instruction set than the average processor (MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX2, FMA3, AES, SHA vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX2, FMA3, AES, SHA vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA
  • 1 fewer threads per core
    Intel Core Ultra 9 275HX has fewer threads per core than the average processor (1 vs 2). The average processor offers 2 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

    Intel Core Ultra 9 275HX has fewer threads per core than the average processor (1 vs 2). The average processor offers 2 threads per core.1 vs 2
Total
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Cache & Architecture
Power & Thermal

Graphic comparison of Intel Core Ultra 9 275HX and other processors

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Third-party reviews

What customers like about Intel Core Ultra 9 275HX?

  • High-end performance that benchmarks as one of the fastest laptop processors available
  • Improved efficiency at lower load levels, allowing for nearly silent, passive cooling during simple tasks
  • Significant gains in multi-core performance compared to previous generations like the i9-14900HX
  • Supports faster DDR5-6400 memory and features an unlocked multiplier for easier overclocking
  • Better battery life (6-8 hours) compared to some competing high-end AMD chips in similar gaming laptop chassis

What customers dislike about Intel Core Ultra 9 275HX?

  • Marginal to no improvement in single-core performance over the previous generation in some tests
  • Reports of overheating and loud fan noise when under heavy gaming or rendering loads
  • Lower gaming performance compared to AMD Ryzen 9 9955HX3D, which benefits from 3D V-Cache
  • Lack of hyperthreading, which can negatively impact performance in specific multi-threaded legacy benchmarks
  • High power draw under full load (up to 160W), leading to rapid battery drain during intensive tasks

Expert reviews

L
laptopmedia.com
Ongoing
Intel Core Ultra 9 275HX - LaptopMedia Would you like to compare these multicore results against a specific desktop processor or a different mobile ch...

The Intel Core Ultra 9 275HX is a high-performance Arrow Lake-HX mobile processor designed for premium gaming and creator laptops, utilizing a 24-core, 24-thread hybrid architecture. It features an integrated 13 TOPS "AI Boost" NPU and delivers elite multi-threaded performance, demonstrated by a 38,238 Cinebench R23 score in the Lenovo Legion Pro 7i. Key advantages include its...Read more

C
cpubenchmark.net
Ongoing
Intel Core Ultra 9 275HX - CPU Benchmarks

The Intel Core Ultra 9 275HX is a high-end 2025 Arrow Lake-HX mobile processor featuring 24 cores and 24 threads, designed for elite gaming and content creation with a PassMark CPU Mark over 61,000. The chip delivers superior single-threaded speeds up to 5.4 GHz and substantial multi-threaded gains, representing a significant 33% improvement over its predecessor, the i9-14900HX. Key...Read more

G
gamestar.de
23/02/2026
I tested 6 gaming laptops with the Intel 275HX and the results blew me away!", "I put 6 Intel 275HX gaming laptops to the test and the results are sho...

The Intel Core Ultra 9 275HX, based on the Arrow Lake architecture, offers significant power efficiency improvements by matching previous-generation i9-14900HX performance at roughly half the power consumption. While providing elite gaming and content creation performance, a notable drawback is the removal of hyper-threading, potentially hindering multi-threaded workloads. The CPU...Read more

(Translated)Show original
C
computerbase.de
28/03/2025
AMD Ryzen 9 9955HX and Intel Core Ultra 9 275HX Review

ComputerBase compares the AMD Ryzen 9 9955HX (16C/32T) and Intel Core Ultra 9 275HX (24C/24T) using two XMG Neo 16 laptops, testing performance scaling from 15W to 180W. The 9955HX demonstrates a slight edge in multi-threaded productivity and gaming 1% lows, with pros including high 64MB L3 cache and superior thread count; however, a high idle power draw is a key con. The 275HX...Read more

(Translated)Show original
P
pausehardware.com
09/02/2025
Intel Core Ultra 9 275HX: A Multi-Core Revolution?

The Intel Core Ultra 9 275HX (Arrow Lake-HX) marks a major architectural shift over the Core i9-14900HX, utilizing a 3nm process to deliver superior multi-core efficiency, with benchmarks showing roughly 18% higher performance at significantly lower power consumption. A primary drawback is the removal of Hyper-Threading on the 275HX, resulting in 24 threads compared to the 32...Read more

(Translated)Show original
A
azerty.nl
01/03/2026
Intel Core Ultra 9 processor for maximum desktop performance

The Intel Core Ultra 9 285K ("Arrow Lake") shifts focus to efficiency over raw speed, featuring 24 cores (8P + 16E) without hyperthreading, a 5.7 GHz boost, and a dedicated AI NPU. It excels in productivity, boasting up to 17% higher multi-threaded performance in Cinebench 2024 and significantly improved power efficiency over the 14900K, alongside DDR5 CUDIMM and PCIe 5.0 support....Read more

(Translated)Show original

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