Xeon W-11855M: specs and benchmarks
Aggregate performance score
Xeon W-11855M provides acceptable benchmark performance at 11.39% of a leader's which is a 96-core EPYC 9655P.
Summary
Intel started Xeon W-11855M sales 11 May 2021. This is a Tiger Lake-H architecture desktop processor primarily aimed at office systems. It has 6 cores and 12 threads, and is based on 10 nm SuperFin manufacturing technology, with a maximum frequency of 4900 MHz and a locked multiplier.
Compatibility-wise, this is FCBGA1787 processor with a TDP of 35 Watt and a maximum temperature of 72 °C. It supports DDR4 memory.
Primary details
Xeon W-11855M processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | 693 | |
| Place by popularity | not in top-100 | |
| Market segment | Server | |
| Series | Intel Tiger Lake | |
| Power efficiency | 30.80 | of 100.00 (Core Ultra 7 164U) |
| Architecture codename | Tiger Lake-H (2021) | |
| Release date | 11 May 2021 (3 years ago) |
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 6 (Hexa-Core) | |
| Threads | 12 | |
| Base clock speed | 3.2 GHz | of 4.7 GHz (Ryzen 9 7900X) |
| Boost clock speed | 4.9 GHz | of 6.2 GHz (Core i9-14900KS) |
| Bus rate | 8 GT/s | |
| L1 cache | 96K (per core) | of 80 KB (EPYC 9965) |
| L2 cache | 1.25 MB (per core) | of 2 MB (Xeon 6980P) |
| L3 cache | 18 MB (shared) | of 1152 MB (EPYC 9684X) |
| Chip lithography | 10 nm SuperFin | of 3 nm (Core Ultra 9 285K) |
| Maximum core temperature | 100 °C | of 110 °C (Core Ultra 9 185H) |
| Maximum case temperature (TCase) | 72 °C | of 105 °C (Core i7-5950HQ) |
| 64 bit support | + | |
| Windows 11 compatibility | + |
Compatibility
Information on Xeon W-11855M compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | of 8 (Xeon Platinum 8454H) |
| Socket | FCBGA1787 | |
| Power consumption (TDP) | 35 Watt | of 500 Watt (Xeon 6960P) |
Technologies and extensions
Technological capabilities and additional instructions supported by Xeon W-11855M. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | |
| AES-NI | + | |
| FMA | + | |
| AVX | + | |
| vPro | + | |
| Enhanced SpeedStep (EIST) | + | |
| Speed Shift | + | |
| Hyper-Threading Technology | + | |
| TSX | + | |
| Thermal Monitoring | + | |
| Flex Memory Access | + | |
| SIPP | + | |
| Turbo Boost Max 3.0 | + | |
| Deep Learning Boost | + |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | |
| Secure Key | + | |
| SGX | - | |
| OS Guard | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| VT-d | + | |
| VT-x | + | |
| EPT | + |
Memory specs
Types, maximum amount and channel number of RAM supported by Xeon W-11855M's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR4 | |
| Maximum memory size | 128 GB | of 6 TiB (EPYC 9654) |
| Max memory channels | 2 | of 12 (Xeon Platinum 9221) |
| Maximum memory bandwidth | 51.2 GB/s | of 460.8 GB/s (EPYC 9654) |
| ECC memory support | + |
Graphics specifications
General parameters of a GPU integrated into Xeon W-11855M.
| Integrated graphics card | Intel UHD Graphics for 11th Gen Intel Processors | |
| Quick Sync Video | + | |
| Graphics max frequency | 1.45 GHz | |
| Execution Units | 32 |
Graphics interfaces
Available interfaces and connections of Xeon W-11855M's integrated GPU.
| Number of displays supported | 4 |
Graphics image quality
Maximum display resolutions supported by Xeon W-11855M's integrated GPU, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 4096x2304@60Hz | |
| Max resolution over eDP | 4096x2304@60Hz | |
| Max resolution over DisplayPort | 7680x4320@60Hz |
Graphics API support
APIs supported by Xeon W-11855M's integrated GPU, sometimes API versions are included.
| DirectX | 12.1 | |
| OpenGL | 4.6 |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 4.0 | of 5.0 (EPYC 9655P) |
| PCI Express lanes | 20 | of 128 (EPYC 9655P) |
Benchmark performance
Single-core and multi-core benchmark results of Xeon W-11855M. Overall benchmark performance is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Geekbench 5.5 Multi-Core
Send your test results of Xeon W-11855M.
AMD equivalent
According to our data, the closest AMD alternative to Xeon W-11855M is Xeon Platinum 8256, which is slower by 7% and lower by 49 positions in our ranking.
Here are some closest AMD rivals to Xeon W-11855M:
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
Recommended GPUs
People consider these graphics cards to be good for Xeon W-11855M, according to our PC configuration statistics.
These are the fastest graphics cards for Xeon W-11855M in our user configuration statistics. There is a total of 40 configurations using Xeon W-11855M in our database.
