i9-12900 vs Xeon W-11855M
Aggregate performance score
Core i9-12900 outperforms Xeon W-11855M by an impressive 89% based on our aggregate benchmark results.
Primary details
Comparing Xeon W-11855M and Core i9-12900 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 696 | 250 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 35.09 |
| Market segment | Server | Desktop processor |
| Series | Intel Tiger Lake | no data |
| Power efficiency | 30.77 | 31.35 |
| Architecture codename | Tiger Lake-H (2021) | Alder Lake-S (2022) |
| Release date | 11 May 2021 (3 years ago) | 4 January 2022 (2 years ago) |
| Launch price (MSRP) | no data | $489 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon W-11855M and Core i9-12900 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 6 (Hexa-Core) | 16 (Hexadeca-Core) |
| Threads | 12 | 24 |
| Base clock speed | 3.2 GHz | 2.4 GHz |
| Boost clock speed | 4.9 GHz | 5.1 GHz |
| Bus rate | 8 GT/s | no data |
| L1 cache | 96K (per core) | 80K (per core) |
| L2 cache | 1.25 MB (per core) | 1.25 MB (per core) |
| L3 cache | 18 MB (shared) | 30 MB (shared) |
| Chip lithography | 10 nm SuperFin | Intel 7 nm |
| Die size | no data | 215 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| Maximum case temperature (TCase) | 72 °C | 72 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon W-11855M and Core i9-12900 compatibility with other computer components: 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 | 1 |
| Socket | FCBGA1787 | FCLGA1700 |
| Power consumption (TDP) | 35 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon W-11855M and Core i9-12900. 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 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | + | + |
| Idle States | no data | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | + | no data |
| SIPP | + | + |
| Turbo Boost Max 3.0 | + | + |
| Deep Learning Boost | + | + |
Security technologies
Xeon W-11855M and Core i9-12900 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| Secure Key | + | + |
| SGX | - | no data |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon W-11855M and Core i9-12900 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon W-11855M and Core i9-12900. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4, DDR5 |
| Maximum memory size | 128 GB | 128 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 51.2 GB/s | 76.8 GB/s |
| ECC memory support | + | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel UHD Graphics for 11th Gen Intel Processors | Intel UHD Graphics 770 |
| Quick Sync Video | + | + |
| Clear Video HD | no data | + |
| Graphics max frequency | 1.45 GHz | 1.55 GHz |
| Execution Units | 32 | 32 |
Graphics interfaces
Available interfaces and connections of Xeon W-11855M and Core i9-12900 integrated GPUs.
| Number of displays supported | 4 | 4 |
Graphics image quality
Maximum display resolutions supported by Xeon W-11855M and Core i9-12900 integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 4096x2304@60Hz | 4096 x 2160 @ 60Hz |
| Max resolution over eDP | 4096x2304@60Hz | 5120 x 3200 @ 120Hz |
| Max resolution over DisplayPort | 7680x4320@60Hz | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Xeon W-11855M and Core i9-12900 integrated GPUs, sometimes API versions are included.
| DirectX | 12.1 | 12 |
| OpenGL | 4.6 | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Xeon W-11855M and Core i9-12900.
| PCIe version | 4.0 | 5.0 and 4.0 |
| PCI Express lanes | 20 | 20 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score 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
Pros & cons summary
| Performance score | 11.38 | 21.53 |
| Integrated graphics card | 5.58 | 6.16 |
| Recency | 11 May 2021 | 4 January 2022 |
| Physical cores | 6 | 16 |
| Threads | 12 | 24 |
| Power consumption (TDP) | 35 Watt | 65 Watt |
Xeon W-11855M has 85.7% lower power consumption.
i9-12900, on the other hand, has a 89.2% higher aggregate performance score, 10.4% faster integrated GPU, an age advantage of 7 months, and 166.7% more physical cores and 100% more threads.
The Core i9-12900 is our recommended choice as it beats the Xeon W-11855M in performance tests.
Be aware that Xeon W-11855M is a server/workstation processor while Core i9-12900 is a desktop one.
Should you still have questions on choice between Xeon W-11855M and Core i9-12900, ask them in Comments section, and we shall answer.
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