Intel Xeon W-11855M - Specs, Benchmarks

Explore the complete details of Xeon W-11855M, including specs, performance benchmarks

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Summary

The Xeon W-11855M CPU by Intel. features a Tiger Lake-H (2021) architecture. with 6 cores. and 12 threads. with a boost clock of 4900 MHz. built on a 10 nm process. With a power consumption (TDP) of 35W. priced at launch at $450.00.



Benchmark Performance

Rank #881 (10%)

Performance Ranking Comparison

Compare Xeon W-11855M with similar CPUs based on ranking performance. Higher percentages indicate better ranking.

General Information

Basic details about the Xeon W-11855M, including manufacturer, ranking, and release date.

Manufacturer Intel
Place in Ranking 881
Place by Popularity not in top-100
Release Date Jan 2021
Launch Price $450.00
Market Segment Mobile workstation
Socket FCBGA1787

Performance

Details on cores, threads, clock speeds, and processing power of Xeon W-11855M.

Physical Cores 6
Threads 12
Base Clock Speed 3200 MHz
Boost Clock Speed 4900 MHz
Performance Ranking #881

Architecture & Manufacturing

Information on architecture, manufacturing process, and transistor details.

Architecture Tiger Lake-H (2021)
Code Name Tiger Lake-H (2021)
Manufacturing Process 10 nm

Cache Specifications

Details on L1, L2, and L3 cache sizes for optimal performance.

L1 Cache 80 KB (per core)
L2 Cache 1.25 MB (per core)
L3 Cache 18 MB (shared)

Memory Support & Connectivity

Memory specifications and connectivity options.

Supported Memory Types DDR4
PCIe Version 4.0
PCIe Lanes 20

Power & Efficiency

Power consumption, efficiency ratings, and thermal specifications.

TDP (Thermal Design Power) 35 W
Power Efficiency 12.13/100
Cost Effectiveness 13.04/100

CPU Technologies & Extensions

Advanced instruction sets and technology support for enhanced capabilities.

AES-NI No
AVX No
AVX2 No
AVX-512 No
Precision Boost No
Intel VT-x No
Intel VT-d No

Integrated Graphics

Details about the integrated graphics capabilities.

Integrated Graphics Intel UHD Graphics for 11th Gen Intel Processors

Closest Competitors

Here are some of the closest competitors to this CPU. Compare their performance, power consumption, and specifications.


Technical Specifications and Comprehensive Analysis: Xeon W-11855M

Executive Summary and Technical Overview

The Xeon W-11855M represents Intel's implementation of the Tiger Lake-H (2021) architecture, engineered to deliver optimized performance for the Mobile workstation market segment through a comprehensive integration of advanced processing technologies, efficient power management systems, and extensive compatibility features. Released on 2021-01-01 00:00:00, this processor incorporates cutting-edge design methodologies and manufacturing processes to achieve a balanced combination of computational performance, energy efficiency, and cost-effectiveness that addresses diverse computing requirements. Currently positioned at rank #881 in comprehensive performance evaluations, the processor demonstrates competitive capabilities across both synthetic benchmarks and real-world application testing, establishing its credibility as a viable solution for contemporary computing demands. This comprehensive technical analysis examines all aspects of the processor's design, implementation, and performance characteristics to provide detailed insights for system architects, engineers, and informed consumers requiring thorough technical documentation for decision-making processes.

Architectural Design and Implementation Details

The Tiger Lake-H (2021) architecture foundation employed in the Xeon W-11855M represents a sophisticated approach to instruction set design, execution pipeline optimization, and resource management that directly influences performance characteristics across diverse workload types. This architectural framework defines critical aspects including instruction set compatibility, execution unit organization, branch prediction mechanisms, and memory subsystem design that collectively determine the processor's computational capabilities and efficiency characteristics. The Tiger Lake-H (2021) core design implementation provides specific optimizations for computational throughput, latency reduction, and power efficiency that distinguish this processor from alternative designs within the same architectural family. Manufacturing implementation utilizes advanced 10 nm process technology, enabling superior transistor density, reduced power consumption per operation, and improved thermal characteristics compared to processors manufactured using larger lithography nodes. The smaller process geometry facilitates increased transistor count within equivalent die areas, enabling more sophisticated features, larger cache structures, and enhanced execution resources while maintaining competitive manufacturing costs and thermal design parameters. The architectural design philosophy emphasizes balanced performance delivery across diverse workload types while maintaining efficiency characteristics that enable practical deployment in various system configurations and thermal environments.

Core Configuration and Execution Unit Analysis

The processor implements 6 physical processing cores, each configured as an independent execution engine capable of autonomous instruction processing, data manipulation, and computational task execution with dedicated resources including arithmetic logic units, floating-point processors, and specialized execution units. Simultaneous multi-threading (SMT) technology extends processing capability to 12 logical threads, enabling each physical core to maintain architectural state for multiple instruction streams and dynamically allocate execution resources to maximize utilization and minimize idle cycles across diverse workload patterns. This threading implementation provides substantial performance improvements in applications designed for parallel execution while maintaining compatibility with single-threaded software through intelligent resource allocation and scheduling mechanisms. Each core incorporates dedicated Level 1 cache memory, private execution resources, and independent frequency scaling capabilities that enable fine-grained performance optimization based on workload characteristics and thermal constraints. The 6-core design achieves optimal balance between parallel processing capabilities and single-threaded performance, making it well-suited for mixed workloads including gaming, productivity applications, and moderate content creation tasks. Advanced execution features including out-of-order instruction processing, speculative execution, and sophisticated branch prediction mechanisms work collaboratively to maximize instruction throughput and minimize performance penalties associated with memory access latencies and control flow dependencies. The core design incorporates extensive performance monitoring capabilities that enable real-time workload analysis and dynamic optimization of execution parameters to maintain optimal performance characteristics across varying computational demands.

Frequency Scaling and Dynamic Performance Management

Base frequency operation at 3200 MHz establishes the minimum guaranteed performance level available across all operating conditions, ensuring predictable computational throughput for system stability and application responsiveness requirements. This base frequency specification represents conservative operating parameters that maintain long-term reliability while providing adequate performance headroom for standard computing workloads and system operational requirements. Dynamic boost frequency capability extends performance to 4900 MHz when thermal and power conditions permit, providing substantial performance enhancement for demanding applications while maintaining system stability and component protection. The boost implementation employs sophisticated algorithms that continuously monitor multiple system parameters including temperature sensors, power consumption metrics, workload characteristics, and thermal capacity to make intelligent frequency scaling decisions that optimize performance delivery. Advanced power management capabilities include dynamic voltage and frequency scaling (DVFS) that continuously optimizes operating parameters to maintain the optimal balance between performance delivery, power consumption, and thermal generation across diverse usage patterns and environmental conditions. The frequency management system demonstrates exceptional responsiveness to workload changes, enabling rapid transitions between power-efficient idle states and high-performance operational modes that ensure optimal user experience across various computing scenarios. Thermal protection mechanisms integrated into the frequency scaling system prevent overheating conditions while maximizing performance delivery within safe operational parameters, ensuring long-term component reliability and consistent performance over extended operational periods.

Memory Subsystem Architecture and Cache Implementation

The memory subsystem of the Xeon W-11855M employs a hierarchical cache design optimized for latency minimization, bandwidth maximization, and efficient data access patterns that significantly influence overall system performance across various application categories. Level 1 (L1) cache implementation provides 80 KB (per core) of ultra-low latency storage directly accessible within single clock cycles, ensuring immediate availability of critical instructions and data for optimal execution throughput. The L1 cache design typically incorporates separate instruction and data caches with sophisticated prefetch mechanisms that anticipate future memory access patterns and preload relevant data to minimize execution stalls. Level 2 (L2) cache configuration offers 1.25 MB (per core) of intermediate storage that bridges the performance gap between ultra-fast L1 cache and larger but slower L3 cache or main system memory, providing crucial buffering for working datasets and frequently accessed data structures. The L2 cache design incorporates advanced replacement policies and prefetch algorithms that intelligently manage data placement to maximize hit rates and minimize access latencies for diverse application access patterns. Level 3 (L3) cache provides 18 MB (shared) of shared storage accessible across all processor cores, facilitating efficient inter-core communication and data sharing while reducing expensive main memory access frequencies that could impact overall system performance. The shared L3 cache architecture proves particularly beneficial for multi-threaded applications where cores require access to common datasets, reducing data duplication and improving overall memory efficiency. Memory controller implementation supports DDR4 memory technologies, enabling high-bandwidth data transfer and reduced latency access to main system memory for applications with large working datasets. The hierarchical memory design incorporates sophisticated coherency protocols and consistency mechanisms that ensure data integrity across multiple cache levels while maintaining high performance access patterns for both single-threaded and multi-threaded applications.

Power Management Architecture and Thermal Design Parameters

Thermal Design Power (TDP) specification of 35 watts establishes comprehensive guidelines for thermal management system requirements, power delivery infrastructure, and cooling solution design necessary for optimal processor operation within specified parameters. This TDP specification represents maximum sustained power consumption under worst-case operational scenarios, providing system designers with reliable parameters for cooling system sizing and power delivery component selection. Advanced power management features incorporate multiple power states including active, idle, and sleep modes that enable dynamic power consumption scaling based on workload demands and system utilization patterns, significantly reducing overall system power consumption during periods of reduced computational activity. Sophisticated thermal monitoring systems continuously track multiple temperature sensors distributed across the processor die, enabling real-time thermal management decisions that prevent overheating while maximizing performance delivery within safe operational boundaries. Power efficiency evaluation demonstrates a rating of 12.13, indicating effective optimization of computational performance relative to power consumption across diverse operational scenarios. The thermal design incorporates intelligent throttling mechanisms that gradually reduce performance when approaching thermal limits, ensuring component protection while maintaining maximum possible performance within thermal constraints. Package design and heat dissipation characteristics enable effective thermal transfer to cooling solutions, supporting both air and liquid cooling implementations across various system configurations and thermal management approaches.

Input/Output Architecture and Connectivity Features

The processor incorporates comprehensive input/output capabilities designed to support modern system architectures and emerging connectivity requirements across diverse computing platforms and application scenarios. PCIe 4.0 implementation provides 20 high-speed lanes that enable connection to graphics cards, storage devices, network adapters, and expansion cards with sufficient bandwidth for contemporary and future peripheral requirements. The PCIe implementation supports advanced features including hot-plug capability, error correction, and power management that ensure reliable operation and optimal performance across various connected devices. Socket FCBGA1787 implementation provides mechanical and electrical interface compatibility with supporting motherboard designs, ensuring broad platform availability and upgrade flexibility for system builders and end users. Integrated graphics capabilities include Intel UHD Graphics for 11th Gen Intel Processors with support for modern display outputs and multimedia processing, enabling complete system functionality without dedicated graphics hardware requirements. Advanced I/O features support modern system requirements including high-speed storage interfaces, network connectivity, and peripheral device integration that enable comprehensive system functionality across diverse computing applications and use cases. The I/O architecture incorporates robust electrical design and signal integrity measures that ensure reliable operation across specified environmental conditions and system configurations.

Instruction Set Architecture and Advanced Technology Features

The processor implements comprehensive instruction set architecture extensions and advanced technology features that enhance computational capabilities, security characteristics, and specialized application performance. These instruction set extensions and technology features provide substantial performance improvements for applications designed to leverage advanced processor capabilities, including scientific computing, multimedia processing, security applications, and virtualization scenarios. Hardware-accelerated features reduce computational overhead and improve efficiency for specialized tasks while maintaining backward compatibility with existing software and operating system environments. The comprehensive instruction set support ensures optimal performance across diverse software categories while enabling future software developments that can take advantage of advanced processor capabilities and specialized execution units.

Comprehensive Performance Evaluation and Analysis

Extensive performance evaluation across synthetic benchmarks and real-world applications demonstrates the computational capabilities and practical performance characteristics of the Xeon W-11855M across diverse operational scenarios. Real-world application testing encompasses gaming performance, productivity software responsiveness, content creation workflows, and professional application performance to validate practical usability across diverse computing requirements. Performance consistency evaluation confirms stable computational delivery across extended operational periods without significant thermal throttling or performance degradation that could impact user experience or professional workflows. Comparative analysis with competing processors in similar market segments indicates competitive positioning across various performance metrics while maintaining distinct advantages in specific application categories. The comprehensive performance profile demonstrates balanced capabilities that address contemporary computing demands while providing adequate headroom for future software requirements and evolving application complexity.

Technical Assessment and Implementation Recommendations

Comprehensive technical evaluation of the Xeon W-11855M reveals a well-engineered processor that successfully implements advanced architectural features, efficient power management, and comprehensive connectivity options within a balanced design approach that addresses diverse computing requirements. Cost-effectiveness analysis demonstrates a rating of 13.04, indicating favorable price-to-performance characteristics that provide competitive value within its designated market segment. The processor architecture demonstrates effective optimization for contemporary software workloads while maintaining compatibility with existing system infrastructure and software environments, ensuring practical deployment flexibility across various computing platforms. Technical implementation quality, including manufacturing precision, design validation, and quality assurance measures, meets professional standards for reliability and long-term operational stability in both consumer and professional computing environments. Platform ecosystem support including motherboard availability, cooling solution compatibility, and upgrade path flexibility ensures practical implementation options for system builders and end users across various budget levels and performance requirements. The Xeon W-11855M represents a competent technical solution that delivers reliable computational performance through proven architectural approaches and comprehensive feature implementation, making it suitable for users requiring dependable processing capabilities without extreme performance specifications or premium pricing considerations. Long-term viability assessment suggests adequate performance headroom for evolving software requirements and computational demands over typical system lifecycle periods, ensuring practical value for users seeking sustainable computing investments.