Intel® Xeon™ W-11855M

The Intel Xeon W-11855M is a laptop processor with 6 cores and 12 threads, built on the Tiger Lake architecture. It launched in Apr 2021. Clocks run from 3.2 GHz base to 4.9 GHz boost. A 18-MB L3 cache backs the cores (4.3 MB per core). Maximum addressable memory is 128 GB. It uses the FCBGA1787 socket. Notable platform capabilities: Gaussian Neural Accelerator, AVX-512, Extended Page Tables (EPT), Control-flow Enforcement (CET).

The Intel Xeon W-11855M scores 3,134 in single-core performance and 17,269 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 7,357 for overall performance, 15,612 for productivity performance, 15,139 for creator performance, 17,161 for engineering performance and 13,719 for gaming performance. Its multi-core throughput works out to 2,878 per core and 1,439 per thread. Its performance index is 91, so its overall performance is 9% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the Intel Xeon W-11855M scores 57,676 in integer math, 34,411 in floating-point math, 197,930 in compression, 10,225 in cryptography, 948 in physics simulation, 13,294 in vector SIMD, 77 in the prime sieve and 24,028 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 2% below in integer math, 25% below in floating-point math, 13% below in compression, 11% below in cryptography, 13% below in physics simulation, 14% below in vector SIMD, 15% above in the prime sieve and 6% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The Intel Xeon W-11855M has 6 physical cores and runs 12 logical threads. It runs 2 threads per core. It runs at a base clock of 3.20 GHz and boosts up to 4.90 GHz.

The Intel Xeon W-11855M is a laptop processor, belongs to the Intel Xeon W family, uses the Tiger Lake architecture, carries the codename Tiger Lake and is manufactured on a 10 nm process. It launched in Apr 2021.

The Intel Xeon W-11855M has 480 KB of L1 cache, 7.50 MB of L2 cache and 18 MB of L3 cache. That adds up to about 26.0 MB of cache, or 4.33 MB per core. Each core has 1.25 MB of private L2 cache.

The Intel Xeon W-11855M has a 3-level cache hierarchy: L1 at 480 KB, L2 at 7.5 MB and L3 at 18 MB. L3 is the largest level and makes up about 69% of the cache listed here.

The Intel Xeon W-11855M addresses up to 128 GB of memory and uses 2 memory channels.

The Intel Xeon W-11855M includes integrated graphics (Intel UHD Graphics for 11th Gen Intel Processors).

The Intel Xeon W-11855M uses the FCBGA1787 socket and provides up to 20 PCIe lanes.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

The Intel Xeon W-11855M is manufactured by Intel. It launched at a price of $450.

The Intel Xeon W-11855M is also identified by the model number W-11855M.

Feex has recorded 47% of the specifications it tracks for the Intel Xeon W-11855M. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Bandwidth, DDR5 Support, DDR4 Support, LPDDR Support, ECC Memory and Max Memory Speed. Graphics: Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: TDP, Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Foundry. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number.

Processors that use the same FCBGA1787 socket as the Intel Xeon W-11855M and have the closest multi-core scores in the Feex database include Intel Xeon W-11555MRE, Intel Xeon W-11865MRE, Intel Core i5-11500HE, Intel Xeon W-11865MLE and Intel Core i7-11600H.