Intel Core i7 1265U Review | 78 Data compared

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  • Avg. price in UK: ~£360
  • Avg. price in US: ~$430
  • PassMark benchmark result: 13158
  • N. of physical cores: 10
  • CPU boost clock speed: 4.8 GHz

Intel Core i7 1265U review. Compare 78 technical specifications and user reviews to see how it ranks among processors and if it is worth buying.

6.2

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%

6.2

Technical Score

10.0%

?

User score

Good
6.2

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%

5.4

Performance

18.0%

7.6

Cache & Architecture

10.0%

6.8

Memory & PCIe

7.0%

7.3

Power & Thermal

4.0%

7.8

Platform

1.0%

8.1

Integrated Graphics

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

  • 5.2
    Gaming

    Score components:

    30.0%

    5.6

    PassMark single-core benchmark score

    25.0%

    5.5

    Geekbench 6 single-core benchmark score

    20.0%

    7.0

    CPU boost clock speed

    17.0%

    2.7

    L3 cache

    8.0%

    4.3

    N. of physical cores

  • 3.5
    Video editing

    Score components:

    45.0%

    3.3

    Geekbench 6 multi-core benchmark score

    20.0%

    4.3

    N. of physical cores

    20.0%

    4.0

    CPU threads

    15.0%

    2.7

    L3 cache

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Best prices in UK

    N/A~ £360

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 i7-1265U is a high-end mobile processor from the 12th Gen Alder Lake-U series, featuring a hybrid architecture with 10 cores (2 Performance-cores and 8 Efficient-cores) and 12 threads. It operates at a base power of 15W with a max turbo frequency of 4.80 GHz and includes 12 MB of Intel Smart Cache. Key advantages include its Enterprise vPro management features, integrated Intel Iris Xe graphics (96 EUs) reaching 1.25 GHz, and support for modern memory types like DDR5-4800 and LPDDR5-5200. However, its performance is often limited by its low thermal design power (TDP), which can lead to thermal throttling and lower sustained speeds during long, heavy workloads compared to higher-wattage P-series or H-series chips.

Technical Specifications of processor Intel Core i7 1265U

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

6.2
Intel Core i7 1265U has a technical score of 6.16 points, which is higher than that of 67.1% 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 i7 1265U 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%

6.2

Overall score

40.0%

8.6

Price

6.9
Intel Core i7 1265U has a quality-to-price ratio of 6.9 points, which is higher than 69% 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 i7 1265U 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

FCBGA1744
Intel Core i7 1265U uses the FCBGA1744 CPU socket, which is older than that of 71% of processors and equal to that of 5.1% 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

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: HIGH

x86-64
Intel Core i7 1265U 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+

10
Intel Core i7 1265U has 10 CPU cores, which is more than 77.1% of processors and equal to 4.3% 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+

12
Intel Core i7 1265U offers 12 CPU threads, which is more than 55.1% of processors and equal to 14.1% 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

?
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

4.8 GHz
Intel Core i7 1265U reaches a boost clock of 4.8 GHz which is higher than that of 71.2% of processors and equal to that of 4.3% 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 1.8 GHz & 8 x 1.3 GHz
Intel Core i7 1265U has a base clock of 2x1.8 GHz & 8x1.3 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

10 nm
Intel Core i7 1265U uses a 10 nm process node, which is more advanced than that of 52.3% of processors and equal to that of 19.1% 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

Intel 7
Intel Core i7 1265U is built on the Intel 7 foundry process, which is more advanced than that of 66.2% of processors and equal to that of 14.9% 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 i7 1265U 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

9.5 MB
Intel Core i7 1265U has an L2 cache of 9.5 MB which is larger than that of 78.7% of processors and equal to that of 1.7% 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

928 KB
Intel Core i7 1265U has an L1 cache of 928 KB which is larger than that of 83.5% of processors and equal to that of 1.7% 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

DDR4/DDR5/LPDDR4X/LPDDR5
Intel Core i7 1265U supports DDR DDR4/DDR5/LPDDR4X/LPDDR5, which is newer than that of 95.7% of processors and equal to that of 1.5% 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

5,200 MHz
Intel Core i7 1265U supports memory speeds up to 5200 MHz, which is higher than that of 72.1% of processors and equal to 7% 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

LPDDR5-5200 MHz
Intel Core i7 1265U supports JEDEC memory speeds up to LPDDR5-5200 MHz, which is higher than that of 72.2% of processors and equal to 1.8% 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

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: HIGH

Good value: >=128 GB

64 GB
Intel Core i7 1265U supports up to 64 GB of memory, which is more than 28.4% of processors and equal to 27.6% 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 i7 1265U 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 Iris Xe Graphics 96EU
Intel Core i7 1265U uses the Intel Iris Xe Graphics 96EU integrated GPU, which is more advanced than that in 81.1% of processors and equal to that in 2.9% 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

96
Intel Core i7 1265U has 96 GPU execution units, which is more than 95.1% of processors and equal to 4% 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 i7 1265U 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 i7 1265U 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

15 W
Intel Core i7 1265U has a TDP of 15 W which is lower than that of 77.7% of processors and equal to that of 16.1% 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

15 W
Intel Core i7 1265U has a base power of 15 W which is lower than that of 77.2% of processors and equal to that of 16.2% 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

55 W
Intel Core i7 1265U has a boost power of 55 W which is lower than that of 57.3% of processors and equal to that of 4.6% 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 i7 1265U 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 i7 1265U supports configurable TDP. 52.9% of processors support configurable TDP.
cTDP: 12 W
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Intel Core i7 1265U vs the average processor

  • 2.91x better multi-core performance
    Intel Core i7 1265U has a higher multi-core performance than the average processor (8,108 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.
    What it is: A Cinebench R20 score that reflects how well the processor handles long, heavy rendering workloads across many cores.
    When it matters: When you care about sustained multi-core performance in rendering, compiling, heavy creation work, or productivity workloads that use many threads.

    Importance: HIGH

    Good value: >4700

    Intel Core i7 1265U has a higher multi-core performance than the average processor (8,108 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.8,108 vs 2,783
  • Newer DDR support
    Intel Core i7 1265U supports a newer DDR generation than the average processor (DDR4/DDR5/LPDDR4X/LPDDR5 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: MEDIUM

    Good value: DDR5

    Intel Core i7 1265U supports a newer DDR generation than the average processor (DDR4/DDR5/LPDDR4X/LPDDR5 vs DDR4).DDR4/DDR5/LPDDR4X/LPDDR5 vs DDR4
  • 3.8x larger L2 cache
    Intel Core i7 1265U has a higher L2 cache than the average processor (9.5 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 i7 1265U has a higher L2 cache than the average processor (9.5 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.9.5 MB vs 2.5 MB
  • 2.5x more L2 per core
    Intel Core i7 1265U has more L2 cache per core than the average processor (1.3 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 i7 1265U has more L2 cache per core than the average processor (1.3 MB/core vs 0.5 MB/core). The average processor provides 0.5 MB/core of L2 cache per core.1.25 MB/core vs 0.5 MB/core
  • 4 more CPU cores
    Intel Core i7 1265U has more CPU cores than the average processor (10 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 i7 1265U has more CPU cores than the average processor (10 vs 6). The average processor has 6 CPU cores.10 vs 6
  • Uses big.LITTLE design
    Intel Core i7 1265U uses a big.LITTLE design, the average processor does not.
    What it is: Combines high-performance cores with lower-power efficiency cores instead of relying on just one core type.
    When it matters: When you want strong burst performance in demanding tasks without wasting as much power during lighter background work.

    Importance: MEDIUM

    Intel Core i7 1265U uses a big.LITTLE design, the average processor does not.
  • 11.6% higher boost clock
    Intel Core i7 1265U has a higher boost clock speed than the average processor (4.8 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 i7 1265U has a higher boost clock speed than the average processor (4.8 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.4.8 GHz vs 4.3 GHz
  • Newer PCIe version
    Intel Core i7 1265U supports a newer PCIe version than the average processor (4 vs 3.0).
    What it is: The newest PCIe generation the processor can use directly for graphics cards, SSDs, and other high-speed expansion devices.
    When it matters: When you want support for newer GPUs or SSDs, or more bandwidth for high-speed expansion hardware.

    Importance: HIGH

    Good value: 4.0

    Intel Core i7 1265U supports a newer PCIe version than the average processor (4 vs 3.0).4.0 vs 3.0
  • Includes crypto acceleration
    Intel Core i7 1265U includes crypto acceleration, the average processor does not.
  • Supports HMP
    Intel Core i7 1265U supports HMP, the average processor does not.
  • 2.91x better multi-core performance
    Intel Core i7 1265U has a higher multi-core performance than the average processor (8,108 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.
  • 4 more CPU cores
    Intel Core i7 1265U has more CPU cores than the average processor (10 vs 6). The average processor has 6 CPU cores.
  • 11.6% higher boost clock
    Intel Core i7 1265U has a higher boost clock speed than the average processor (4.8 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.
  • 25.7% better single-core performance
    Intel Core i7 1265U has a higher PassMark single-core score than the average processor (3,122 vs 2,483). The average processor scores 2,483 in PassMark single-core.
  • 29% higher single-core score
    Intel Core i7 1265U has a higher Geekbench 6 single-core score than the average processor (1,898 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
  • 4 more CPU threads
    Intel Core i7 1265U has more CPU threads than the average processor (12 vs 8). The average processor has 8 CPU threads.
  • 2 wider front-end design
    Intel Core i7 1265U has a higher front-end width than the average processor (6 vs 4). The average processor uses front-end width of 4.
  • 29.1% higher multi-core score
    Intel Core i7 1265U has a higher Geekbench 6 multi-core score than the average processor (6,186 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.
  • 3.8x larger L2 cache
    Intel Core i7 1265U has a higher L2 cache than the average processor (9.5 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.
  • 2.5x more L2 per core
    Intel Core i7 1265U has more L2 cache per core than the average processor (1.3 MB/core vs 0.5 MB/core). The average processor provides 0.5 MB/core of L2 cache per core.
  • Uses big.LITTLE design
    Intel Core i7 1265U uses a big.LITTLE design, the average processor does not.
  • 53.9% smaller die size
    Intel Core i7 1265U has a lower die size than the average processor (82 mm² vs 178 mm²). The average processor has a die size of 178 mm².
  • More advanced microarchitecture
    Intel Core i7 1265U uses a more advanced microarchitecture than the average processor (Alder Lake vs Kaby Lake).
  • 2.42x larger L1 cache
    Intel Core i7 1265U has a higher L1 cache than the average processor (928 KB vs 384 KB). The average processor has L1 cache of 384 KB.
  • More advanced foundry
    Intel Core i7 1265U uses a more advanced foundry process than the average processor (Intel 7 vs Intel 14 nm).
  • 50% larger L3 cache
    Intel Core i7 1265U has a higher L3 cache than the average processor (12 MB vs 8 MB). The average processor has L3 cache of 8 MB.
  • 16.7% smaller process node
    Intel Core i7 1265U has a lower process node than the average processor (10 nm vs 12 nm). The average processor uses a process node of 12 nm.
  • Newer DDR support
    Intel Core i7 1265U supports a newer DDR generation than the average processor (DDR4/DDR5/LPDDR4X/LPDDR5 vs DDR4).
  • Newer PCIe version
    Intel Core i7 1265U supports a newer PCIe version than the average processor (4 vs 3.0).
  • 4 more PCIe lanes
    Intel Core i7 1265U has more PCIe lanes than the average processor (20 vs 16). The average processor offers 16 PCIe lanes.
  • 77.3% higher memory speed
    Intel Core i7 1265U has a higher maximum memory speed than the average processor (5,200 MHz vs 2,933 MHz). The average processor supports memory speed of 2,933 MHz.
  • 67.7% higher memory bandwidth
    Intel Core i7 1265U has a higher memory bandwidth than the average processor (76.8 GB/s vs 45.8 GB/s). The average processor offers memory bandwidth of 45.8 GB/s.
  • 4x more GPU execution units
    Intel Core i7 1265U has more GPU execution units than the average processor (96 vs 24). The average processor has 24 GPU execution units.
  • Better integrated GPU
    Intel Core i7 1265U uses a better integrated GPU than the average processor (Intel Iris Xe Graphics 96EU vs Intel UHD Graphics 630).
  • 1 more supported displays
    Intel Core i7 1265U has more supported displays than the average processor (4 vs 3). The average processor supports 3 displays.
  • 66.7% lower base power
    Intel Core i7 1265U 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.
  • 66.7% lower TDP
    Intel Core i7 1265U has a lower TDP than the average processor (15 W vs 45 W). The average processor has a TDP of 45 W.
  • Narrower instruction support
    Intel Core i7 1265U supports a narrower instruction set than the average processor (MMX, SSE4.1, SSE4.2, AVX2, FMA3, AES, VAES, BMI2 vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).
  • Older CPU socket
    Intel Core i7 1265U uses an older CPU socket than the average processor (FCBGA1,744 vs FP2).
  • 10 lower clock multiplier
    Intel Core i7 1265U has a lower clock multiplier than the average processor (18 vs 28). The average processor has a clock multiplier of 28.
  • 30% less L3 per core
    Intel Core i7 1265U has less L3 cache per core than the average processor (1.2 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 i7 1265U 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)).
  • 30% less L3 per core
    Intel Core i7 1265U has less L3 cache per core than the average processor (1.2 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 i7 1265U has less L3 cache per core than the average processor (1.2 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.1.2 MB/core vs 1.714 MB/core
  • Narrower instruction support
    Intel Core i7 1265U supports a narrower instruction set than the average processor (MMX, SSE4.1, SSE4.2, AVX2, FMA3, AES, VAES, BMI2 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 i7 1265U supports a narrower instruction set than the average processor (MMX, SSE4.1, SSE4.2, AVX2, FMA3, AES, VAES, BMI2 vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).MMX, SSE4.1, SSE4.2, AVX2, FMA3, AES, VAES, BMI2 vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA
  • Narrower media codec support
    Intel Core i7 1265U 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 i7 1265U 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)
  • 44% more expensive
    Intel Core i7 1265U is more expensive than the average processor (£360 vs £250).
    Intel Core i7 1265U is more expensive than the average processor (£360 vs £250).£360 vs £250
  • Older CPU socket
    Intel Core i7 1265U uses an older CPU socket than the average processor (FCBGA1,744 vs FP2).
    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

    Intel Core i7 1265U uses an older CPU socket than the average processor (FCBGA1,744 vs FP2).FCBGA1744 vs FP2
  • 10 lower clock multiplier
    Intel Core i7 1265U has a lower clock multiplier than the average processor (18 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 i7 1265U has a lower clock multiplier than the average processor (18 vs 28). The average processor has a clock multiplier of 28.18 vs 28

Graphic comparison of Intel Core i7 1265U and other processors

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Third-party reviews

What customers like about Intel Core i7 1265U?

  • Excellent single-threaded performance for daily office tasks and productivity
  • Highly portable and efficient, ideal for thin and light ultrabooks
  • Support for modern connectivity including Thunderbolt 4, Wi-Fi 6E, and PCIe 4.0
  • Integrated Iris Xe graphics (96EU) allow for moderate gaming at low settings
  • Features 'Enterprise' vPro management, making it suitable for corporate business environments

What customers dislike about Intel Core i7 1265U?

  • Sustained performance is often limited by its 15W TDP and thermal throttling in compact laptop chassis
  • Multi-threaded performance is frequently outperformed by competing Ryzen processors
  • Reports of significant heating issues and power consumption spikes during intensive workloads
  • Battery life can be underwhelming compared to newer architectures like the Apple M-series or Intel's own 13th/14th Gen chips
  • The 2 Performance cores can be a bottleneck for heavy multi-tasking compared to P-series or H-series processors

Expert reviews

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browser.geekbench.com
Ongoing

The Intel Core i7-1265U is a 10-core, 12-thread Alder Lake mobile processor designed for thin-and-light business laptops, featuring 2 performance cores (up to 4.8 GHz) and 8 efficient cores. It delivers strong single-core performance and efficient multitasking capabilities for office workloads, utilizing DDR5/LPDDR5 memory support and integrated Intel Iris Xe Graphics. Key...Read more

N
notebookcheck.net
01/02/2023

The Microsoft Surface Laptop 5 15 features a premium aluminum chassis, a high-quality 3:2 PixelSense touchscreen, and excellent input devices, providing a refined user experience. Key improvements include the addition of Thunderbolt 4 connectivity while maintaining a lightweight, minimalist design. However, the device is limited by its aging 12th Gen Intel Core i7-1265U processor,...Read more

P
pcworld.com
16/01/2023

The HP Dragonfly Folio G3 is a premium 2-in-1 business laptop featuring a unique, leather-wrapped "pull-forward" design that allows the 13.5-inch display to slide over the keyboard, ideal for conferencing and creative work. It offers robust productivity performance with 12th Gen Intel Core processors, a high-quality 8MP webcam, and a superior, magnetically charging stylus, marking...Read more

N
notebookcheck.net
26/09/2022

The Dell Latitude 14 7430 2-in-1 is a premium business convertible featuring an Intel Core i7-1265U processor, offering strong performance, robust security features like a proximity sensor, and versatile design options in carbon fiber or aluminum. The device boasts extensive connectivity, including dual Thunderbolt 4 ports, and a comfortable, high-quality keyboard. However, it is...Read more

P
pcworld.com
03/08/2022

The Dell Latitude 7330 Ultralight is a highly portable 2.13-pound business notebook featuring a durable magnesium alloy chassis, robust security via vPro technology, and excellent wireless connectivity. Key advantages include a top-tier keyboard for typing and a bright, anti-glare display. However, the machine suffers from weak speakers, a bland design, and often lacks a 1080p...Read more

N
notebookcheck.net
22/07/2022

The Dell Latitude 7330 features an ultra-lightweight magnesium alloy chassis weighing just under 1 kg, paired with a bright 400-nit matte display and excellent connectivity, including two Thunderbolt 4 ports. It is designed for portability without sacrificing essential business-class ports or build quality. Powered by the Intel Core i7-1265U, the laptop offers strong burst...Read more

N
notebookcheck.biz
17/01/2023

Intel’s Alder Lake-U 15-watt series introduces a hybrid architecture designed for thin-and-light laptops, balancing efficiency with performance. The review indicates that while multi-core performance is strong, actual efficiency depends heavily on OEM thermal management. Key pros include excellent multi-core performance for everyday productivity, supported by Thunderbolt 4, Wi-Fi...Read more

N
notebookcheck.nl
29/01/2023

The Lenovo ThinkPad X1 Carbon G10 (Core i7-1265U) is a premium, ultralight 1.12 kg business laptop featuring a robust carbon fiber/magnesium chassis, a top-tier keyboard, a high-quality 1080p webcam, and extensive connectivity, including Thunderbolt 4. While the 2.8K OLED display option offers excellent visuals, the laptop's slim design leads to performance throttling under...Read more

N
notebookcheck.nl
15/12/2022

A Notebookcheck review of the Lenovo ThinkPad X1 Carbon Gen 10 reveals that the Core i7-1265U configuration significantly outperforms the i5-1250P model in sustained workloads, despite the i5 having more cores. The thin chassis cannot effectively cool the P-series processor, causing it to throttle to 15W, while the U-series maintains a steady 24W, making the latter more stable and...Read more

N
notebookcheck.nl
06/08/2022

The Dell Latitude 9430 2-in-1, reviewed by Notebookcheck, is a premium business convertible featuring Intel 12th Gen Alder Lake-U processors that deliver a substantial, up to 55% faster, multi-threaded performance jump over the 9420. Key strengths include a high-quality 16:10 QHD+ IPS display with 500+ nits brightness, an upgraded 1080p webcam, and long-lasting battery life often...Read more

N
notebookcheck.nl
23/07/2022

The Dell Latitude 13 7330 Ultralight is a premium business laptop weighing under 1 kg, featuring a 12th Gen Intel Core i7-1265U processor that delivers strong productivity performance in a compact, magnesium chassis. Despite its size, it offers excellent connectivity, including dual Thunderbolt 4 ports, though it suffers from high operating temperatures, performance throttling, and...Read more

N
notebookcheck.nl
19/12/2022

The HP EliteBook 840 G9 is a 14-inch professional laptop featuring a robust, redesigned all-aluminum chassis and a 16:10 aspect ratio display, positioning it as a strong alternative to the Lenovo ThinkPad X1 Carbon. Key advantages include a high-quality 5-megapixel webcam for conferencing, sustained cool and quiet performance, and excellent maintainability with two SODIMM slots and...Read more

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