Intel Core Ultra 5 135U Review | 78 Data compared
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Intel Core Ultra 5 135U Review | 78 Data compared

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  • Avg. price in UK: ~£270
  • Avg. price in US: ~$330
  • PassMark benchmark result: 16780
  • N. of physical cores: 12
  • CPU boost clock speed: 4.4 GHz
  • CPU socket: FCBGA2049
  • TDP (Thermal design power): 15 W

Intel Core Ultra 5 135U review. Compare 78 technical specifications and user reviews to see how this product ranks in the Processors category and whether it is worth buying.

7.9

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%

7.9

Technical Score

10.0%

?

User score

Very good
7.9

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%

7.8

Performance

18.0%

8.4

Cache & Architecture

10.0%

7.7

Memory & PCIe

7.0%

7.8

Power & Thermal

4.0%

8.7

Platform

1.0%

8.7

Integrated Graphics

Very good
?

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

  • 8.1
    Gaming

    Score components:

    30.0%

    ?

    PassMark single-core benchmark score

    25.0%

    ?

    Geekbench 6 single-core benchmark score

    20.0%

    7.5

    CPU boost clock speed

    17.0%

    ?

    L3 cache

    8.0%

    10

    N. of physical cores

  • 8.4
    Video editing

    Score components:

    45.0%

    ?

    Geekbench 6 multi-core benchmark score

    20.0%

    10

    N. of physical cores

    20.0%

    ?

    CPU threads

    15.0%

    ?

    L3 cache

  • No image
No image

Best prices in UK

    N/A~ £270

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 5 135U is a mid-range Meteor Lake-U mobile processor designed for thin-and-light laptops, featuring a hybrid architecture with 12 cores (2 Performance, 8 Efficient, and 2 Low-Power Efficient) and 14 threads. It operates at a base frequency of 1.6 GHz with a turbo boost up to 4.4 GHz, supported by 12 MB of Intel Smart Cache and a base power of 15W (up to 57W turbo). Key pros include an integrated AI Boost NPU for hardware-accelerated AI workloads, 4-core Intel Arc graphics, and support for high-speed memory like LPDDR5x-7467. However, its performance can be limited by its low 15W base power profile, and it features a smaller L3 cache compared to higher-end 'H' series models.

Technical Specifications of processor Intel Core Ultra 5 135U

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

7.9
Intel Core Ultra 5 135U has a technical score of 7.92 points, which is higher than that of 76.1% 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 5 135U 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%

7.9

Overall score

40.0%

9.1

Price

8.3
Intel Core Ultra 5 135U has a quality-to-price ratio of 8.3 points, which is higher than 83.1% 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: LOW

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: LOW

mobile
Intel Core Ultra 5 135U 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: LOW

FCBGA2049
Intel Core Ultra 5 135U uses the FCBGA2049 CPU socket, which is older than that of 66.5% of processors and equal to that of 1.7% 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: LOW

N/A
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: LOW

x86-64
Intel Core Ultra 5 135U 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+

12
Intel Core Ultra 5 135U has 12 CPU cores, which is more than 81.5% of processors and equal to 5.5% 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+

14
Intel Core Ultra 5 135U offers 14 CPU threads, which is more than 69.3% of processors and equal to 1.7% 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: LOW

Good value: 2

?
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

4.4 GHz
Intel Core Ultra 5 135U reaches a boost clock of 4.4 GHz which is higher than that of 51.2% of processors and equal to that of 5.1% 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

2 x 1.6 GHz & 8 x 1.1 GHz & 2 x 0.7 GHz
Intel Core Ultra 5 135U has a base clock of 2x1.6 GHz & 8x1.1 GHz & 2x0.7 GHz which is lower than that of 52.9% of processors and equal to that of 0.1% 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: MEDIUM

Good value: <10 nm

7 nm
Intel Core Ultra 5 135U uses a 7 nm process node, which is more advanced than that of 71.5% of processors and equal to that of 10.9% 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: LOW

Intel 4
Intel Core Ultra 5 135U is built on the Intel 4 foundry process, which is more advanced than that of 94.6% of processors and equal to that of 1.4% 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

12 MB
Intel Core Ultra 5 135U has an L3 cache of 12 MB which is larger than that of 54.4% of processors and equal to that of 9% 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

10 MB
Intel Core Ultra 5 135U has an L2 cache of 10 MB which is larger than that of 80.5% of processors and equal to that of 1.8% 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: LOW

Good value: >=512 KB

1,184 KB
Intel Core Ultra 5 135U has an L1 cache of 1,184 KB which is larger than that of 89.1% of processors and equal to that of 0.6% 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: LOW

Good value: DDR5

DDR5/LPDDR5/LPDDR5X
Intel Core Ultra 5 135U supports DDR DDR5/LPDDR5/LPDDR5X, which is newer than that of 93.8% of processors and equal to that of 1.3% 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: LOW

Good value: >=4800 MHz

7,467 MHz
Intel Core Ultra 5 135U supports memory speeds up to 7,467 MHz, which is higher than that of 92% of processors and equal to 1.2% 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: LOW

Good value: >=5600 MHz

DDR5-5600 MHz
Intel Core Ultra 5 135U supports JEDEC memory speeds up to DDR5-5600 MHz, which is higher than that of 78.8% of processors and equal to 5.5% 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: LOW

Good value: >=5200 MHz

N/A
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: LOW

Good value: >=128 GB

96 GB
Intel Core Ultra 5 135U supports up to 96 GB of memory, which is more than 56% of processors and equal to 5.8% 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: LOW

yes
Intel Core Ultra 5 135U includes integrated graphics. 12.4% 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: LOW

Intel Arc Xe-LPG Graphics 64EU
Intel Core Ultra 5 135U 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: LOW

Good value: >=24

64
Intel Core Ultra 5 135U 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: LOW

Good value: >=350 MHz

300 MHz
Intel Core Ultra 5 135U has an integrated GPU clock of 300 MHz which is lower than that of 58.1% of processors and equal to that of 37.9% 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), H.265 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode/encode)
Intel Core Ultra 5 135U supports H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode/encode) media codecs, which is broader support than 94.6% of processors and equal to 1.9% 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: LOW

Good value: <30 W

15 W
Intel Core Ultra 5 135U has a TDP of 15 W which is lower than that of 78% of processors and equal to that of 16% 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: LOW

Good value: <30 W

15 W
Intel Core Ultra 5 135U has a base power of 15 W which is lower than that of 77.2% of processors and equal to that of 16.3% 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: LOW

Good value: <50 W

57 W
Intel Core Ultra 5 135U has a boost power of 57 W which is lower than that of 53% of processors and equal to that of 2.3% 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: LOW

Good value: <=28 s

28 seconds
Intel Core Ultra 5 135U has a turbo duration of 28 seconds which is longer than that of 3.4% of processors and equal to that of 86.1% 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 5 135U supports configurable TDP. 47.3% of processors support configurable TDP.
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Intel Core Ultra 5 135U vs the average processor

  • 6 more CPU cores
    Intel Core Ultra 5 135U has more CPU cores than the average processor (12 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 5 135U has more CPU cores than the average processor (12 vs 6). The average processor has 6 CPU cores.12 vs 6
  • More advanced microarchitecture
    Intel Core Ultra 5 135U uses a more advanced microarchitecture than the average processor (Meteor Lake vs Kaby Lake).
    What it is: The internal core-design codename used for this processor generation.
    When it matters: When you are comparing CPUs at a deeper design level and want to identify the exact architecture behind marketing names.

    Importance: HIGH

    Intel Core Ultra 5 135U uses a more advanced microarchitecture than the average processor (Meteor Lake vs Kaby Lake).Meteor Lake vs Kaby Lake
  • 4x more L2 per core
    Intel Core Ultra 5 135U has more L2 cache per core than the average processor (2 MB/core vs 0.5 MB/core). The average processor provides 0.5 MB/core of L2 cache per core.
    What it is: The amount of L2 cache available to each CPU core.
    When it matters: When you are comparing per-core cache resources in deeper architectural analysis.

    Importance: LOW

    Good value: >=1 MB/core

    Intel Core Ultra 5 135U has more L2 cache per core than the average processor (2 MB/core vs 0.5 MB/core). The average processor provides 0.5 MB/core of L2 cache per core.2 MB/core vs 0.5 MB/core
  • 72.5% higher multi-core score
    Intel Core Ultra 5 135U has a higher Geekbench 6 multi-core score than the average processor (8,329 vs 4,829). The average processor scores 4,829 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 5 135U has a higher Geekbench 6 multi-core score than the average processor (8,329 vs 4,829). The average processor scores 4,829 in Geekbench 6 multi-core.8,329 vs 4,829
  • 4x larger L2 cache
    Intel Core Ultra 5 135U has a higher L2 cache than the average processor (10 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 5 135U has a higher L2 cache than the average processor (10 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.10 MB vs 2.5 MB
  • 31.4% better single-core performance
    Intel Core Ultra 5 135U has a higher PassMark single-core score than the average processor (3,285 vs 2,500). The average processor scores 2,500 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 5 135U has a higher PassMark single-core score than the average processor (3,285 vs 2,500). The average processor scores 2,500 in PassMark single-core.3,285 vs 2,500
  • Newer DDR support
    Intel Core Ultra 5 135U supports a newer DDR generation than the average processor (DDR5/LPDDR5/LPDDR5X vs DDR4).
    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: LOW

    Good value: DDR5

    Intel Core Ultra 5 135U supports a newer DDR generation than the average processor (DDR5/LPDDR5/LPDDR5X vs DDR4).DDR5/LPDDR5/LPDDR5X vs DDR4
  • 2.55x higher memory speed
    Intel Core Ultra 5 135U has a higher maximum memory speed than the average processor (7,467 MHz vs 2,933 MHz). The average processor supports memory speed of 2,933 MHz.
    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: LOW

    Good value: >=4800 MHz

    Intel Core Ultra 5 135U has a higher maximum memory speed than the average processor (7,467 MHz vs 2,933 MHz). The average processor supports memory speed of 2,933 MHz.7467 MHz vs 2933 MHz
  • Advanced security extensions
    Intel Core Ultra 5 135U provides more advanced security extensions than the average processor (AES-NI, SHA, NX bit, Secure Key, TXT, OS Guard, Boot Guard, CET, MBEC, TDT, TME, TME-MK vs AES-NI, NX bit, Secure Processor).
  • Broader instruction support
    Intel Core Ultra 5 135U supports a broader instruction set than the average processor (MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX-VNNI, F16C, FMA3, AES, SHA, BMI1, BMI2, ABM, ADX vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).
  • Includes crypto acceleration
    Intel Core Ultra 5 135U includes crypto acceleration, the average processor does not. 0% of processors include crypto acceleration.
  • 3 newer release date
    Intel Core Ultra 5 135U has a newer release date than the average processor (2023 vs 2020).
  • Supports HMP
    Intel Core Ultra 5 135U supports HMP, the average processor does not. 22.7% of processors support HMP.
  • 6 more CPU cores
    Intel Core Ultra 5 135U has more CPU cores than the average processor (12 vs 6). The average processor has 6 CPU cores.
  • 72.5% higher multi-core score
    Intel Core Ultra 5 135U has a higher Geekbench 6 multi-core score than the average processor (8,329 vs 4,829). The average processor scores 4,829 in Geekbench 6 multi-core.
  • 31.4% better single-core performance
    Intel Core Ultra 5 135U has a higher PassMark single-core score than the average processor (3,285 vs 2,500). The average processor scores 2,500 in PassMark single-core.
  • 6 more CPU threads
    Intel Core Ultra 5 135U has more CPU threads than the average processor (14 vs 8). The average processor has 8 CPU threads.
  • 58.7% higher PassMark score
    Intel Core Ultra 5 135U has a higher PassMark benchmark score than the average processor (16,780 vs 10,572.5). The average processor scores 10,572.5 in PassMark benchmark.
  • 31.7% higher single-core score
    Intel Core Ultra 5 135U has a higher Geekbench 6 single-core score than the average processor (1937 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
  • 23.7% higher Cinebench R20 single-core score
    Intel Core Ultra 5 135U has a higher Cinebench R20 single-core score than the average processor (605 vs 489). The average processor scores 489 in Cinebench R20 single-core.
  • 2 wider front-end design
    Intel Core Ultra 5 135U has a higher front-end width than the average processor (6 vs 4). The average processor uses front-end width of 4.
  • More advanced microarchitecture
    Intel Core Ultra 5 135U uses a more advanced microarchitecture than the average processor (Meteor Lake vs Kaby Lake).
  • 4x more L2 per core
    Intel Core Ultra 5 135U has more L2 cache per core than the average processor (2 MB/core vs 0.5 MB/core). The average processor provides 0.5 MB/core of L2 cache per core.
  • 4x larger L2 cache
    Intel Core Ultra 5 135U has a higher L2 cache than the average processor (10 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.
  • More advanced foundry
    Intel Core Ultra 5 135U uses a more advanced foundry process than the average processor (Intel 4 vs Intel 14 nm).
  • Uses big.LITTLE design
    Intel Core Ultra 5 135U uses a big.LITTLE design, the average processor does not. 20.5% of processors use a big.LITTLE design.
  • 3.08x larger L1 cache
    Intel Core Ultra 5 135U has a higher L1 cache than the average processor (1,184 KB vs 384 KB). The average processor has L1 cache of 384 KB.
  • 58.8% smaller die size
    Intel Core Ultra 5 135U has a lower die size than the average processor (73 mm² vs 177 mm²). The average processor has a die size of 177 mm².
  • 41.7% smaller process node
    Intel Core Ultra 5 135U has a lower process node than the average processor (7 nm vs 12 nm). The average processor uses a process node of 12 nm.
  • 50% larger L3 cache
    Intel Core Ultra 5 135U has a higher L3 cache than the average processor (12 MB vs 8 MB). The average processor has L3 cache of 8 MB.
  • Newer DDR support
    Intel Core Ultra 5 135U supports a newer DDR generation than the average processor (DDR5/LPDDR5/LPDDR5X vs DDR4).
  • 2.55x higher memory speed
    Intel Core Ultra 5 135U has a higher maximum memory speed than the average processor (7,467 MHz vs 2,933 MHz). The average processor supports memory speed of 2,933 MHz.
  • 95.6% higher memory bandwidth
    Intel Core Ultra 5 135U has a higher memory bandwidth than the average processor (89.6 GB/s vs 45.8 GB/s). The average processor offers memory bandwidth of 45.8 GB/s.
  • Newer PCIe version
    Intel Core Ultra 5 135U supports a newer PCIe version than the average processor (4 vs 3.0).
  • 4 more PCIe lanes
    Intel Core Ultra 5 135U has more PCIe lanes than the average processor (20 vs 16). The average processor offers 16 PCIe lanes.
  • Higher JEDEC memory speed
    Intel Core Ultra 5 135U has a higher JEDEC memory speed than the average processor (DDR5-5600 MHz vs DDR4-3200 MHz). The average processor supports JEDEC memory speed of DDR4-3200 MHz.
  • 50% more memory capacity
    Intel Core Ultra 5 135U has more maximum memory capacity than the average processor (96 GB vs 64 GB). The average processor supports 64 GB of memory.
  • Better integrated GPU
    Intel Core Ultra 5 135U uses a better integrated GPU than the average processor (Intel Arc Xe-LPG Graphics 64EU vs Intel UHD Graphics 630).
  • 2.67x more GPU execution units
    Intel Core Ultra 5 135U 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 5 135U has more supported displays than the average processor (4 vs 3). The average processor supports 3 displays.
  • 66.7% lower base power
    Intel Core Ultra 5 135U has a lower base power draw than the average processor (15 W vs 45 W). The average processor has a base power draw of 45 W.
  • 10 °C higher TJ Max
    Intel Core Ultra 5 135U has a higher TJ Max than the average processor (110 °C vs 100 °C). The average processor has a TJ Max of 100 °C.
  • 66.7% lower TDP
    Intel Core Ultra 5 135U has a lower TDP than the average processor (15 W vs 45 W). The average processor has a TDP of 45 W.

Total
Overall
Platform
Performance
Cache & Architecture
Memory & PCIe
Integrated Graphics
Power & Thermal
  • 12 lower clock multiplier
    Intel Core Ultra 5 135U has a lower clock multiplier than the average processor (16 vs 28). The average processor has a clock multiplier of 28.
  • 41.7% less L3 per core
    Intel Core Ultra 5 135U has less L3 cache per core than the average processor (1 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.
  • 10 °C higher CPU temperature
    Intel Core Ultra 5 135U has a higher CPU temperature than the average processor (110 °C vs 100 °C). The average processor runs at a CPU temperature of 100 °C.
  • 41.7% less L3 per core
    Intel Core Ultra 5 135U has less L3 cache per core than the average processor (1 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: LOW

    Good value: >=2 MB/core

    Intel Core Ultra 5 135U has less L3 cache per core than the average processor (1 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.1 MB/core vs 1.714 MB/core
  • 10 °C higher CPU temperature
    Intel Core Ultra 5 135U has a higher CPU temperature than the average processor (110 °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 5 135U has a higher CPU temperature than the average processor (110 °C vs 100 °C). The average processor runs at a CPU temperature of 100 °C.110 °C vs 100 °C
  • 12 lower clock multiplier
    Intel Core Ultra 5 135U has a lower clock multiplier than the average processor (16 vs 28). The average processor has a clock multiplier of 28.
    What it is: The ratio used to derive CPU frequency from the base clock.
    When it matters: When you tune or compare overclocking behavior.

    Importance: LOW

    Good value: >33

    Intel Core Ultra 5 135U has a lower clock multiplier than the average processor (16 vs 28). The average processor has a clock multiplier of 28.16 vs 28
Total
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Cache & Architecture
Power & Thermal

Graphic comparison of Intel Core Ultra 5 135U and other processors

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Third-party reviews

What customers like about Intel Core Ultra 5 135U?

  • High energy efficiency with a 15W base power draw, making it ideal for thin laptops and tablets
  • Includes a dedicated NPU (Neural Processing Unit) for accelerating local AI tasks and offloading background processes
  • Strong multi-tasking capability for a U-series chip, featuring 12 cores and 14 threads
  • Excellent for standard office workloads, school, and web surfing with long theoretical battery life
  • Updated integrated Arc graphics support modern codecs like AV1 and AI frame generation (XeSS)
  • Supports high-speed memory including LPDDR5x-7467, matching or exceeding many competitors

What customers dislike about Intel Core Ultra 5 135U?

  • Integrated graphics performance is relatively limited compared to 'H' series counterparts, making it unsuitable for demanding modern games
  • Significant reduction in L3 cache (12MB) compared to higher-tier models like the Ultra 7, which may impact performance in data-heavy apps
  • Locked multiplier prevents any overclocking to boost performance
  • Real-world performance is highly dependent on the laptop's specific cooling solution and power limits
  • Some users feel the performance gain over previous 13th-gen Intel Core i5/i7 U-series chips is marginal

Expert reviews

C
cpubenchmark.net
29/03/2026
Summary of the review
Intel Core Ultra 5 135U - CPU Benchmarks
C
cpubenchmark.net
29/03/2026
Summary of the review
Intel Core Ultra 5 135U - Processor Performance Tests
(Translated)Show original
G
geekom.es
22/07/2025
Summary of the review
Intel Core Ultra 5 vs. Intel Core i5: Are They the Same?
(Translated)Show original
C
cpubenchmark.net
01/03/2024
Summary of the review
Intel Core Ultra 5 135U CPU Performance Benchmarks
(Translated)Show original

Video reviews

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