Xeon W-2255 vs W-2191B
Aggregate performance score
Xeon W-2191B outperforms Xeon W-2255 by a significant 25% based on our aggregate benchmark results.
Primary details
Comparing Xeon W-2191B and Xeon W-2255 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 348 | 515 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Series | Intel Xeon W | no data |
| Power efficiency | 11.91 | 8.09 |
| Architecture codename | Skylake (server) (2017−2019) | no data |
| Release date | 21 December 2017 (6 years ago) | 1 October 2019 (5 years ago) |
Detailed specifications
Xeon W-2191B and Xeon W-2255 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 | 18 (Octadeca-Core) | 10 (Deca-Core) |
| Threads | 36 | 20 |
| Base clock speed | 2.3 GHz | 3.7 GHz |
| Boost clock speed | 4.3 GHz | 4.7 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | 8 GT/s |
| Multiplier | 23 | no data |
| L1 cache | 64K (per core) | no data |
| L2 cache | 1 MB (per core) | no data |
| L3 cache | 24.75 MB (shared) | 19.25 MB |
| Chip lithography | 14 nm | 14 nm |
| Die size | 484 mm2 | no data |
| Maximum core temperature | no data | 62 °C |
| Maximum case temperature (TCase) | 66 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Xeon W-2191B and Xeon W-2255 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 (Uniprocessor) | 1 |
| Socket | 2066 | FCLGA2066 |
| Power consumption (TDP) | 140 Watt | 165 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon W-2191B and Xeon W-2255. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | + | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | + |
| PAE | no data | 46 Bit |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
Xeon W-2191B and Xeon W-2255 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| Secure Key | no data | + |
| MPX | - | + |
| Identity Protection | - | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon W-2191B and Xeon W-2255 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon W-2191B and Xeon W-2255. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR4-2933 |
| Maximum memory size | 512 GB | 1 TB |
| Max memory channels | 4 | 4 |
| Maximum memory bandwidth | 85.33 GB/s | 93.85 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon W-2191B and Xeon W-2255.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 48 | 48 |
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.
Pros & cons summary
| Performance score | 18.29 | 14.63 |
| Recency | 21 December 2017 | 1 October 2019 |
| Physical cores | 18 | 10 |
| Threads | 36 | 20 |
| Power consumption (TDP) | 140 Watt | 165 Watt |
Xeon W-2191B has a 25% higher aggregate performance score, 80% more physical cores and 80% more threads, and 17.9% lower power consumption.
Xeon W-2255, on the other hand, has an age advantage of 1 year.
The Xeon W-2191B is our recommended choice as it beats the Xeon W-2255 in performance tests.
Should you still have questions on choice between Xeon W-2191B and Xeon W-2255, ask them in Comments section, and we shall answer.
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