Intel Xeon W 11855M Review | 78 Data compared
OVERALL
SPECS
VS AVERAGE
REVIEWS
ALTERNATIVES

Intel Xeon W 11855M Review | 78 Data compared

double-arrow
  • 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
  • CPU socket: FCBGA1787
  • TDP (Thermal design power): 45 W

Intel Xeon W 11855M review. Compare 78 technical specifications and user reviews to see how this product ranks in the Processors category and whether it is worth buying.

6.9

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%

6.9

Technical Score

10.0%

?

User score

Good
6.9

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%

6.7

Performance

18.0%

7.7

Cache & Architecture

10.0%

6.4

Memory & PCIe

7.0%

6.8

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

  • 8.0
    Gaming

    Score components:

    30.0%

    ?

    PassMark single-core benchmark score

    25.0%

    ?

    Geekbench 6 single-core benchmark score

    20.0%

    9.6

    CPU boost clock speed

    17.0%

    ?

    L3 cache

    8.0%

    4.6

    N. of physical cores

  • 7.3
    Video editing

    Score components:

    45.0%

    ?

    Geekbench 6 multi-core benchmark score

    20.0%

    4.6

    N. of physical cores

    20.0%

    ?

    CPU threads

    15.0%

    ?

    L3 cache

  • No image
No image

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

6.9
Intel Xeon W 11855M has a technical score of 6.89 points, which is higher than that of 61.2% 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%

6.9

Overall score

40.0%

8.5

Price

7.4
Intel Xeon W 11855M has a quality-to-price ratio of 7.4 points, which is higher than 62.3% 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 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: LOW

FCBGA1787
Intel Xeon W 11855M uses the FCBGA1,787 CPU socket, which is older than that of 70.1% of processors and equal to that of 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: LOW

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: LOW

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.
Show more
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% 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: LOW

Good value: 2

2
Intel Xeon W 11855M offers 2 threads per core, which is more than 30.3% of processors and equal to 69.7% 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 higher than that of 63.6% of processors and equal to that of 0.6% of processors.
Show more
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

10 nm
Intel Xeon W 11855M uses a 10 nm process node, which is more advanced than that of 52.4% 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: LOW

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 72.9% 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: LOW

Good value: >=512 KB

480 KB
Intel Xeon W 11855M has an L1 cache of 480 KB which is larger than that of 61.5% of processors and equal to that of 1.9% of processors.
Show more
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

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: LOW

Good value: >=4800 MHz

3,200 MHz
Intel Xeon W 11855M supports memory speeds up to 3,200 MHz, which is higher than that of 51.8% of processors and equal to 8.4% 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

DDR4-3200 MHz
Intel Xeon W 11855M supports JEDEC memory speeds up to DDR4-3200 MHz, which is higher than that of 47.6% of processors and equal to 9.2% 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

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: LOW

yes
Intel Xeon W 11855M 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 UHD Graphics 32EU
Intel Xeon W 11855M uses the Intel UHD Graphics 32EU integrated GPU, which is less advanced than that in 62% 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: LOW

Good value: >=24

32
Intel Xeon W 11855M has 32 GPU execution units, which is more than 70.9% 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: LOW

Good value: >=350 MHz

350 MHz
Intel Xeon W 11855M has an integrated GPU clock of 350 MHz which is higher than that of 42.3% of processors and equal to that of 26.1% 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

?
Show more
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

45 W
Intel Xeon W 11855M has a TDP of 45 W which is lower than that of 40.1% 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: LOW

Good value: <30 W

45 W
Intel Xeon W 11855M has a base power of 45 W which is lower than that of 39.9% of processors and equal to that of 11.5% 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

115 W
Intel Xeon W 11855M has a boost power of 115 W which is higher than that of 71.3% of processors and equal to that of 7.3% 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 Xeon W 11855M 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 Xeon W 11855M supports configurable TDP. 47.3% of processors support configurable TDP.
cTDP: 35-45 W
Show more

Intel Xeon W 11855M vs the average processor

  • 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
  • 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
  • 64.1% higher PassMark score
    Intel Xeon W 11855M has a higher PassMark benchmark score than the average processor (17,350 vs 10,572.5). The average processor scores 10,572.5 in PassMark benchmark.
    What it is: A benchmark score that gives a broad idea of overall processor performance.
    When it matters: When you want a quick overall performance comparison.

    Importance: HIGH

    Good value: >19000

    Intel Xeon W 11855M has a higher PassMark benchmark score than the average processor (17,350 vs 10,572.5). The average processor scores 10,572.5 in PassMark benchmark.17,350 vs 10,572.5
  • 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.
    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

    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.18 MB vs 8 MB
  • More advanced microarchitecture
    Intel Xeon W 11855M uses a more advanced microarchitecture than the average processor (Tiger 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 Xeon W 11855M uses a more advanced microarchitecture than the average processor (Tiger Lake vs Kaby Lake).Tiger Lake vs Kaby Lake
  • 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: LOW

    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
  • 54.5% higher multi-core score
    Intel Xeon W 11855M has a higher Geekbench 6 multi-core score than the average processor (7,460 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 Xeon W 11855M has a higher Geekbench 6 multi-core score than the average processor (7,460 vs 4,829). The average processor scores 4,829 in Geekbench 6 multi-core.7,460 vs 4,829
  • 64.3% better multi-core performance
    Intel Xeon W 11855M has a higher multi-core performance than the average processor (4,586 vs 2,791). The average processor scores 2,791 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 2,791). The average processor scores 2,791 in Cinebench R20 multi-core.4,586 vs 2,791
  • Advanced security extensions
    Intel Xeon W 11855M provides more advanced security extensions than the average processor (AES-NI, Secure Key, SGX, TXT, OS Guard, Boot Guard, CET, MBEC, TME vs AES-NI, NX bit, Secure Processor).
  • 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.
  • 64.1% higher PassMark score
    Intel Xeon W 11855M has a higher PassMark benchmark score than the average processor (17,350 vs 10,572.5). The average processor scores 10,572.5 in PassMark benchmark.
  • 54.5% higher multi-core score
    Intel Xeon W 11855M has a higher Geekbench 6 multi-core score than the average processor (7,460 vs 4,829). The average processor scores 4,829 in Geekbench 6 multi-core.
  • 64.3% better multi-core performance
    Intel Xeon W 11855M has a higher multi-core performance than the average processor (4,586 vs 2,791). The average processor scores 2,791 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 (1988 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
  • 25% better single-core performance
    Intel Xeon W 11855M has a higher PassMark single-core score than the average processor (3,126 vs 2,500). The average processor scores 2,500 in PassMark single-core.
  • 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.
  • 22.5% higher Cinebench R20 single-core score
    Intel Xeon W 11855M has a higher Cinebench R20 single-core score than the average processor (599 vs 489). The average processor scores 489 in Cinebench R20 single-core.
  • Higher base clock
    Intel Xeon W 11855M has a higher base clock than the average processor (6x3.2 GHz vs 4x3.3 GHz).
  • 50.9% faster classroom rendering
    Intel Xeon W 11855M has a lower Blender Classroom render time than the average processor (504.3 vs 334.1). The average processor needs 334.1 for the Blender Classroom test.
  • Supports Turbo Core
    Intel Xeon W 11855M supports Turbo Core, the average processor does not. 1% of processors support Turbo Core.
  • 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.
  • 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).
  • 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.
  • 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. 32.5% of processors support ECC memory.
  • 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
Platform
Performance
Cache & Architecture
Memory & PCIe
Integrated Graphics
  • Narrower instruction support
    Intel Xeon W 11855M supports a narrower instruction set than the average processor (SSE4.1, SSE4.2, AVX, AVX2, AVX-512 vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).
  • Older CPU socket
    Intel Xeon W 11855M uses an older CPU socket than the average processor (FCBGA1,787 vs FP4).
  • 7.3% larger die size
    Intel Xeon W 11855M has a higher die size than the average processor (190 mm² vs 177 mm²). The average processor has a die size of 177 mm².
  • 91.7% higher boost power
    Intel Xeon W 11855M has a higher boost power draw than the average processor (115 W vs 60 W). The average processor has a boost power draw of 60 W.
  • Narrower instruction support
    Intel Xeon W 11855M supports a narrower instruction set than the average processor (SSE4.1, SSE4.2, AVX, AVX2, AVX-512 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: LOW

    Intel Xeon W 11855M supports a narrower instruction set than the average processor (SSE4.1, SSE4.2, AVX, AVX2, AVX-512 vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).SSE4.1, SSE4.2, AVX, AVX2, AVX-512 vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA
  • 91.7% higher boost power
    Intel Xeon W 11855M has a higher boost power draw than the average processor (115 W vs 60 W). The average processor has a boost power draw of 60 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: LOW

    Good value: <50 W

    Intel Xeon W 11855M has a higher boost power draw than the average processor (115 W vs 60 W). The average processor has a boost power draw of 60 W.115 W vs 60 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
  • 7.3% larger die size
    Intel Xeon W 11855M has a higher die size than the average processor (190 mm² vs 177 mm²). The average processor has a die size of 177 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 177 mm²). The average processor has a die size of 177 mm².190 mm² vs 177 mm²
  • Older CPU socket
    Intel Xeon W 11855M uses an older CPU socket than the average processor (FCBGA1,787 vs FP4).
    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

    Intel Xeon W 11855M uses an older CPU socket than the average processor (FCBGA1,787 vs FP4).FCBGA1787 vs FP4
Total
Overall
Platform
Cache & Architecture
Power & Thermal

Graphic comparison of Intel Xeon W 11855M and other processors

Attribute category
Attribute
No results found

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
Summary of the review
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...
B
browser.geekbench.com
Ongoing
Summary of the review
Intel Xeon W-11855M Benchmarks - Geekbench Browser
C
cpubenchmark.net
01/04/2021
Summary of the review
Intel Xeon W-11855M @ 3.20GHz - CPU Benchmarks
L
laptopmedia.com
11/05/2021
Summary of the review
Intel Xeon W-11855M - LaptopMedia
L
labonneconfig.fr
01/05/2021
Summary of the review
Intel Xeon W-11855M Benchmark: Scores and Performance
(Translated)Show original
L
laptopmedia.com
11/05/2021
Summary of the review
Intel Xeon W-11855M - Specifications, Benchmarks and Comparisons
(Translated)Show original
R
ratake.com
11/05/2021
Summary of the review
Intel Xeon W-11855M - Processor - Overview
(Translated)Show original
L
laptopmedia.com
01/06/2022
Summary of the review
Lenovo ThinkPad T15g Gen 2: clinical trial (Tests including the Xeon W-11855M)
(Translated)Show original
L
laptopmedia.com
09/05/2022
Summary of the review
Dell Precision 15 7560 Review – Built for Work
(Translated)Show original
L
laptopmedia.com
14/12/2022
Summary of the review
Intel Xeon W-11855M - Specs, Benchmark Tests, Prices and CPU Comparisons
(Translated)Show original
L
laptopmedia.com
06/10/2021
Summary of the review
Dell Precision 15 3561 review – cooling can make the difference
(Translated)Show original
L
laptopmedia.com
30/10/2021
Summary of the review
Lenovo ThinkPad P15 Gen 2 Review – Featuring Intel Xeon W-11855M Benchmarks
(Translated)Show original
N
notebookcheck.nl
05/10/2021
Summary of the review
Lenovo ThinkPad P17 G2 Laptop Review: Massive workstation with internal upgrades
(Translated)Show original

Video reviews

Best alternatives

amd-ryzen-9-7900
AMD Ryzen 9 7900

Processors

9.2
amd-ryzen-threadripper-pro-7985wx
AMD Ryzen Threadripper Pro 7985WX

Processors

9.2
No image
Intel Core i7 13700T

Processors

9.1
amd-ryzen-threadripper-7970x
AMD Ryzen Threadripper 7970X

Processors

9.1
intel-core-ultra-5-235
Intel Core Ultra 5 235

Processors

9.1
amd-ryzen-threadripper-pro-9965wx
AMD Ryzen Threadripper Pro 9965WX

Processors

9.1
amd-ryzen-9-9900x
AMD Ryzen 9 9900X

Processors

9.1
intel-core-ultra-9-285
Intel Core Ultra 9 285

Processors

9.1
intel-core-i5-13600k
Intel Core i5 13600K

Processors

9.1
amd-ryzen-9-7950x
AMD Ryzen 9 7950X

Processors

9.1
amd-ryzen-9-7900x
AMD Ryzen 9 7900X

Processors

9.1
intel-core-i5-14500
Intel Core i5 14500

Processors

9.0

Compare Intel Xeon W 11855M with other processors

VS
VS

Compare