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Intel Xeon W 11855M Review | 78 Data compared

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  • Avg. price in UK: ~£380
  • Avg. price in US: ~$450
  • PassMark benchmark result: 17350
  • N. of physical cores: 6
  • CPU boost clock speed: 4.9 GHz

Intel Xeon W 11855M review. Compare 78 technical specifications and user reviews to see how it ranks among processors and if it is worth buying.

5.6

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%

5.6

Technical Score

10.0%

?

User score

Good
5.6

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%

4.9

Performance

18.0%

7.1

Cache & Architecture

10.0%

6.1

Memory & PCIe

7.0%

6.1

Power & Thermal

4.0%

7.4

Platform

1.0%

8.0

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

  • 5.4
    Gaming

    Score components:

    30.0%

    5.6

    PassMark single-core benchmark score

    25.0%

    5.7

    Geekbench 6 single-core benchmark score

    20.0%

    7.3

    CPU boost clock speed

    17.0%

    3.5

    L3 cache

    8.0%

    2.6

    N. of physical cores

  • 3.6
    Video editing

    Score components:

    45.0%

    3.8

    Geekbench 6 multi-core benchmark score

    20.0%

    2.6

    N. of physical cores

    20.0%

    4.0

    CPU threads

    15.0%

    3.5

    L3 cache

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Best prices in UK

    N/A~ £380

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 Xeon W-11855M is a high-end mobile workstation processor based on the 10nm Tiger Lake-H architecture, featuring 6 cores and 12 threads with a 3.2 GHz base clock and a 4.9 GHz max turbo frequency. It includes 18 MB of Intel Smart Cache, supports up to 128 GB of DDR4-3200 memory with ECC support, and integrates 32 execution units of Intel UHD Graphics. Main pros include its professional-grade reliability features like ECC memory and vPro eligibility, PCIe 4.0 support with 20 lanes, and specialized instruction sets like AVX-512 and DL Boost for AI acceleration. However, its main cons are the limited 6-core count compared to 8-core contemporaries, a high 45W TDP that can lead to significant thermal throttling in thin laptop chassis, and lower multi-threaded performance when compared to newer consumer-grade chips like the Core i7-12700H.

Technical Specifications of processor Intel Xeon W 11855M

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

5.6
Intel Xeon W 11855M has a technical score of 5.64 points, which is higher than that of 58% 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 Xeon W 11855M 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%

5.6

Overall score

40.0%

8.5

Price

6.5
Intel Xeon W 11855M has a quality-to-price ratio of 6.5 points, which is higher than 53% 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 Xeon W 11855M 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.
mobile workstation
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

FCBGA1787
Intel Xeon W 11855M uses the FCBGA1787 CPU socket, which is older than that of 69.4% of processors and equal to that of 1.1% 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

WM590
Intel Xeon W 11855M supports WM590 chipsets, which is narrower compatibility than 64.4% of processors and equal to that of 0.1% 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 Xeon W 11855M 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+

6
Intel Xeon W 11855M has 6 CPU cores, which is more than 49.9% of processors and equal to 13.4% 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 Xeon W 11855M 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

2
Intel Xeon W 11855M offers 2 threads per core, which is more than 30.4% of processors and equal to 69.6% 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

4.9 GHz
Intel Xeon W 11855M reaches a boost clock of 4.9 GHz which is higher than that of 75.6% of processors and equal to that of 4.6% 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

6 x 3.2 GHz
Intel Xeon W 11855M has a base clock of 6x3.2 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 Xeon W 11855M 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 10 nm SuperFin
Intel Xeon W 11855M is built on the Intel 10 nm SuperFin foundry process, which is more advanced than that of 54% of processors and equal to that of 2.6% 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

18 MB
Intel Xeon W 11855M has an L3 cache of 18 MB which is larger than that of 77.2% of processors and equal to that of 2% 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

7.5 MB
Intel Xeon W 11855M has an L2 cache of 7.5 MB which is larger than that of 72.6% of processors and equal to that of 0.8% 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: MEDIUM

Good value: >=512 KB

480 KB
Intel Xeon W 11855M has an L1 cache of 480 KB which is larger than that of 61.6% of processors and equal to that of 1.9% 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

DDR4
Intel Xeon W 11855M supports DDR DDR4, which is newer than that of 26.3% of processors and equal to that of 31.7% 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

3,200 MHz
Intel Xeon W 11855M supports memory speeds up to 3200 MHz, which is higher than that of 51.5% of processors and equal to 8.3% 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

DDR4-3200 MHz
Intel Xeon W 11855M supports JEDEC memory speeds up to DDR4-3200 MHz, which is higher than that of 51.1% of processors and equal to 8.4% 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

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

128 GB
Intel Xeon W 11855M supports up to 128 GB of memory, which is more than 61.9% of processors and equal to 21.4% of processors.
Show more
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 Xeon W 11855M 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 UHD Graphics 32EU
Intel Xeon W 11855M uses the Intel UHD Graphics 32EU integrated GPU, which is less advanced than that in 62.1% of processors and equal to that in 0.9% 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

32
Intel Xeon W 11855M has 32 GPU execution units, which is more than 70.8% of processors and equal to 9.9% 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

350 MHz
Intel Xeon W 11855M has an integrated GPU clock of 350 MHz which is higher than that of 43.5% of processors and equal to that of 29.6% 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

?
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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

45 W
Intel Xeon W 11855M has a TDP of 45 W which is lower than that of 39.9% of processors and equal to that of 11.4% 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

45 W
Intel Xeon W 11855M has a base power of 45 W which is lower than that of 39.7% of processors and equal to that of 11.6% 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

115 W
Intel Xeon W 11855M has a boost power of 115 W which is higher than that of 72.4% of processors and equal to that of 5.7% 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 Xeon W 11855M 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 Xeon W 11855M supports configurable TDP. 52.9% of processors support configurable TDP.
cTDP: 35-45 W
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Intel Xeon W 11855M vs the average processor

  • 2.5x more L2 per core
    Intel Xeon W 11855M 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 Xeon W 11855M 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
  • 14% higher boost clock
    Intel Xeon W 11855M has a higher boost clock speed than the average processor (4.9 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 Xeon W 11855M has a higher boost clock speed than the average processor (4.9 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.4.9 GHz vs 4.3 GHz
  • 75% more L3 per core
    Intel Xeon W 11855M has more L3 cache per core than the average processor (3 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 Xeon W 11855M has more L3 cache per core than the average processor (3 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.3 MB/core vs 1.714 MB/core
  • 64.8% better multi-core performance
    Intel Xeon W 11855M has a higher multi-core performance than the average processor (4,586 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 Xeon W 11855M has a higher multi-core performance than the average processor (4,586 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.4,586 vs 2,783
  • Newer PCIe version
    Intel Xeon W 11855M 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 Xeon W 11855M supports a newer PCIe version than the average processor (4 vs 3.0).4.0 vs 3.0
  • 3x larger L2 cache
    Intel Xeon W 11855M has a higher L2 cache than the average processor (7.5 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 Xeon W 11855M has a higher L2 cache than the average processor (7.5 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.7.5 MB vs 2.5 MB
  • 35.1% higher single-core score
    Intel Xeon W 11855M has a higher Geekbench 6 single-core score than the average processor (1,988 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 Xeon W 11855M has a higher Geekbench 6 single-core score than the average processor (1,988 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.1,988 vs 1,471
  • 25.9% better single-core performance
    Intel Xeon W 11855M has a higher PassMark single-core score than the average processor (3,126 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 Xeon W 11855M has a higher PassMark single-core score than the average processor (3,126 vs 2,483). The average processor scores 2,483 in PassMark single-core.3,126 vs 2,483
  • 14% higher boost clock
    Intel Xeon W 11855M has a higher boost clock speed than the average processor (4.9 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.
  • 64.8% better multi-core performance
    Intel Xeon W 11855M has a higher multi-core performance than the average processor (4,586 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.
  • 35.1% higher single-core score
    Intel Xeon W 11855M has a higher Geekbench 6 single-core score than the average processor (1,988 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
  • 25.9% better single-core performance
    Intel Xeon W 11855M has a higher PassMark single-core score than the average processor (3,126 vs 2,483). The average processor scores 2,483 in PassMark single-core.
  • 23.8% higher Cinebench R20 single-core score
    Intel Xeon W 11855M has a higher Cinebench R20 single-core score than the average processor (599 vs 484). The average processor scores 484 in Cinebench R20 single-core.
  • 55.6% higher multi-core score
    Intel Xeon W 11855M has a higher Geekbench 6 multi-core score than the average processor (7,460 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.
  • 64.7% higher PassMark score
    Intel Xeon W 11855M has a higher PassMark benchmark score than the average processor (17,350 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.
  • 4 more CPU threads
    Intel Xeon W 11855M has more CPU threads than the average processor (12 vs 8). The average processor has 8 CPU threads.
  • 1 wider front-end design
    Intel Xeon W 11855M has a higher front-end width than the average processor (5 vs 4). The average processor uses front-end width of 4.
  • 2.5x more L2 per core
    Intel Xeon W 11855M 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.
  • 75% more L3 per core
    Intel Xeon W 11855M has more L3 cache per core than the average processor (3 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.
  • 3x larger L2 cache
    Intel Xeon W 11855M has a higher L2 cache than the average processor (7.5 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.
  • 2.25x larger L3 cache
    Intel Xeon W 11855M has a higher L3 cache than the average processor (18 MB vs 8 MB). The average processor has L3 cache of 8 MB.
  • More advanced microarchitecture
    Intel Xeon W 11855M uses a more advanced microarchitecture than the average processor (Tiger Lake vs Kaby Lake).
  • More advanced foundry
    Intel Xeon W 11855M uses a more advanced foundry process than the average processor (Intel 10 nm SuperFin vs Intel 14 nm).
  • 16.7% smaller process node
    Intel Xeon W 11855M 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 PCIe version
    Intel Xeon W 11855M supports a newer PCIe version than the average processor (4 vs 3.0).
  • 4 more PCIe lanes
    Intel Xeon W 11855M has more PCIe lanes than the average processor (20 vs 16). The average processor offers 16 PCIe lanes.
  • 2x more memory capacity
    Intel Xeon W 11855M has more maximum memory capacity than the average processor (128 GB vs 64 GB). The average processor supports 64 GB of memory.
  • Supports ECC memory
    Intel Xeon W 11855M supports ECC memory, the average processor does not.
  • 1 more supported displays
    Intel Xeon W 11855M has more supported displays than the average processor (4 vs 3). The average processor supports 3 displays.

Total
Performance
Cache & Architecture
Memory & PCIe
Integrated Graphics
  • Older CPU socket
    Intel Xeon W 11855M uses an older CPU socket than the average processor (FCBGA1,787 vs FP2).
  • 6.7% larger die size
    Intel Xeon W 11855M has a higher die size than the average processor (190 mm² vs 178 mm²). The average processor has a die size of 178 mm².
  • 79.7% higher boost power
    Intel Xeon W 11855M has a higher boost power draw than the average processor (115 W vs 64 W). The average processor has a boost power draw of 64 W.
  • 79.7% higher boost power
    Intel Xeon W 11855M has a higher boost power draw than the average processor (115 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 Xeon W 11855M has a higher boost power draw than the average processor (115 W vs 64 W). The average processor has a boost power draw of 64 W.115 W vs 64 W
  • 52% more expensive
    Intel Xeon W 11855M is more expensive than the average processor (£380 vs £250).
    Intel Xeon W 11855M is more expensive than the average processor (£380 vs £250).£380 vs £250
  • 6.7% larger die size
    Intel Xeon W 11855M has a higher die size than the average processor (190 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 Xeon W 11855M has a higher die size than the average processor (190 mm² vs 178 mm²). The average processor has a die size of 178 mm².190 mm² vs 178 mm²
  • Older CPU socket
    Intel Xeon W 11855M uses an older CPU socket than the average processor (FCBGA1,787 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 Xeon W 11855M uses an older CPU socket than the average processor (FCBGA1,787 vs FP2).FCBGA1787 vs FP2
Total
Overall
Platform
Cache & Architecture
Power & Thermal

Graphic comparison of Intel Xeon W 11855M and other processors

Attribute category
Attribute
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Third-party reviews

What customers like about Intel Xeon W 11855M?

  • Supports Error Correction Code (ECC) memory, which is essential for preventing data corruption in mission-critical workstation tasks.
  • Includes AVX-512 support, providing a significant advantage for specific engineering and scientific applications compared to some newer consumer chips.
  • Features a high turbo boost clock speed of up to 4.9 GHz, offering strong single-core performance for demanding workloads.
  • Equipped with 18 MB of L3 cache, facilitating faster data access and improved system-wide responsiveness.
  • Provides hardware virtualization support, which significantly enhances the performance of virtual machines.

What customers dislike about Intel Xeon W 11855M?

  • Limited to 6 cores, which may result in slower multi-threaded performance compared to contemporary 8-core or higher processors.
  • Users have reported heating issues in mobile workstation chassis, noting that the chip can struggle to maintain high clock speeds under sustained heavy loads.
  • Lacks an unlocked multiplier, preventing users from easily overclocking the processor for additional performance gains.
  • Some users on comparison sites have reported subjective sluggishness and hanging in certain laptop configurations, despite the high specs.
  • Considered poor value for gaming, as consumer-grade CPUs often provide better performance at lower price points for non-workstation tasks.

Expert reviews

C
cpubenchmark.net
01/07/2023
Intel Xeon W-11855M vs i7-11800H - CPU Benchmarks Would you like to compare the multi-threaded performance of this model against a specific workstatio...

The Intel Core i7-11800H outperforms the Xeon W-11855M by approximately 12–13% in multi-threaded tasks due to its 8-core configuration, making it superior for gaming and general heavy workloads. While the Xeon offers advantages in ECC memory support for workstation stability and slightly higher single-thread performance, it is limited by 6 cores, a smaller 18MB cache, and lower...Read more

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browser.geekbench.com
Ongoing
Intel Xeon W-11855M Benchmarks - Geekbench Browser

The Intel Xeon W-11855M is a hexa-core processor based on the 11th-generation Tiger Lake H45 architecture, designed for mobile workstations. It operates with 6 cores and 12 threads, featuring a base clock of 3.2 GHz and a single-core boost up to 4.9 GHz, utilizing a 10nm SuperFin process for professional applications, ECC memory support, and AVX-512 instructions. Key pros include...Read more

C
cpubenchmark.net
01/04/2021
Intel Xeon W-11855M @ 3.20GHz - CPU Benchmarks

The Intel Xeon W-11855M is a 6-core, 10nm Tiger Lake-H mobile workstation processor released in 2021, operating at 3.2 GHz with 4.9 GHz boost capabilities and 18 MB L3 cache. It is designed for demanding tasks with 45W TDP, supporting ECC memory and PCIe Gen 4 for professional applications. While featuring strong single-thread performance around 3,138 in PassMark tests and AVX-512...Read more

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laptopmedia.com
11/05/2021
Intel Xeon W-11855M - LaptopMedia

The Intel Xeon W-11855M is a 10nm Tiger Lake H45 workstation processor featuring 6 cores and 12 threads with a 3.20 GHz base clock and up to 4.90 GHz boost, supporting up to 128GB of DDR4-3200 RAM. It provides professional-grade advantages such as ECC memory support for data integrity, AVX-512 instruction set support, and PCIe 4.0. While it delivers solid performance with a...Read more

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labonneconfig.fr
01/05/2021
Intel Xeon W-11855M Benchmark: Scores and Performance

The Intel Xeon W-11855M is a 10nm "Tiger Lake-H" hexa-core processor designed for mobile workstations, featuring 12 threads, a 3.2 GHz base clock, and a 4.9 GHz boost, capable of handling 128 GB of DDR4-3200 RAM. Pros include ECC memory support for data integrity, PCIe 4.0 connectivity, and strong single-core performance suitable for professional, data-intensive applications....Read more

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laptopmedia.com
11/05/2021
Intel Xeon W-11855M - Specifications, Benchmarks and Comparisons

The Intel Xeon W-11855M is a 10nm Tiger Lake-H workstation processor featuring six cores, a 3.2 GHz base clock, and a 4.9 GHz boost, offering strong single-core performance and AVX-512 support. A key advantage is its support for ECC memory, essential for stability in professional engineering and scientific applications. With a 45W TDP, it provides solid performance in mobile...Read more

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R
ratake.com
11/05/2021
Intel Xeon W-11855M - Processor - Overview

The Intel Xeon W-11855M is a high-performance, 10nm Tiger Lake-H45 hexa-core processor designed for mobile workstations, featuring 12 threads, a 3.2 GHz base clock, and support for ECC memory. Key pros include official ECC memory support for stability, robust AVX-512 instruction performance, and PCIe 4.0, making it ideal for professional, calculation-heavy tasks. Performance-wise,...Read more

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laptopmedia.com
01/06/2022
Lenovo ThinkPad T15g Gen 2: clinical trial (Tests including the Xeon W-11855M)

The Lenovo ThinkPad T15g Gen 2 is a robust workstation featuring a durable, albeit bulky, chassis weighing over 3 kg, designed for heavy professional tasks and gaming. Its standout pros include exceptional upgradeability with four RAM slots (up to 128GB) and three M.2 storage slots accessible via a service hatch and keyboard removal. Performance is driven by 11th Gen Intel CPUs and...Read more

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laptopmedia.com
09/05/2022
Dell Precision 15 7560 Review – Built for Work

The Dell Precision 15 7560 is a durable, "tank-like" workstation designed for heavy-duty performance, featuring a 2.49 kg chassis with a rubberized base. It boasts a comfortable keyboard with long travel, a precise touchpad with dedicated buttons, and an extensive port selection including Thunderbolt 4. Performance is driven by 11th Gen Intel processors and professional GPUs, while...Read more

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laptopmedia.com
14/12/2022
Intel Xeon W-11855M - Specs, Benchmark Tests, Prices and CPU Comparisons

The Intel Xeon W-11855M is a hexa-core workstation processor based on the 10nm Tiger Lake H45 architecture, offering high performance with a 3.2 GHz base clock and up to 4.9 GHz boost. Designed for professional mobile workstations, it features 6 Willow Cove cores, 12 threads, and a configurable 45W TDP. Key advantages include support for ECC memory for data integrity, PCIe Gen 4,...Read more

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laptopmedia.com
06/10/2021
Dell Precision 15 3561 review – cooling can make the difference

The Dell Precision 15 3561 is a budget-friendly, highly portable 1.79 kg workstation featuring a robust plastic chassis, a comfortable keyboard, and a 15.6-inch IPS display with 97% sRGB coverage and no PWM flickering. It supports extensive upgrades, including up to 64GB of RAM and two M.2 slots, alongside versatile connectivity like Thunderbolt 4 and impressive 97Wh battery life...Read more

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laptopmedia.com
30/10/2021
Lenovo ThinkPad P15 Gen 2 Review – Featuring Intel Xeon W-11855M Benchmarks

The Lenovo ThinkPad P15 Gen 2 is a heavy-duty mobile workstation designed for maximum performance, featuring a rigid, bulky chassis weighing 2.87 kg and a 31.45 mm profile. Key pros include an excellent spill-resistant keyboard, impressive 94Wh battery longevity (up to 12 hours of web browsing), and top-tier performance from 11th Gen Intel Xeon processors and NVIDIA RTX A5000...Read more

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notebookcheck.nl
05/10/2021
Lenovo ThinkPad P17 G2 Laptop Review: Massive workstation with internal upgrades

The Lenovo ThinkPad P17 Gen 2 is a high-performance 17.3-inch workstation offering exceptional power for professional tasks, featuring 11th Gen Intel Core/Xeon processors and NVIDIA RTX A5000 graphics. Key advantages include a bright 4K display, extensive port selection, superior keyboard quality, and high upgradeability with 128GB RAM support. However, the machine is limited by a...Read more

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