Xeon W-2191B vs W-2140B
Aggregate performance score
Xeon W-2191B outperforms Xeon W-2140B by an impressive 62% based on our aggregate benchmark results.
Primary details
Comparing Xeon W-2140B and Xeon W-2191B processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 720 | 353 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Series | Intel Xeon W | Intel Xeon W |
| Power efficiency | 8.60 | 11.93 |
| Architecture codename | Skylake (server) (2017−2018) | Skylake (server) (2017−2018) |
| Release date | 21 December 2017 (7 years ago) | 21 December 2017 (7 years ago) |
Detailed specifications
Xeon W-2140B and Xeon W-2191B 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 | 8 (Octa-Core) | 18 (Octadeca-Core) |
| Threads | 16 | 36 |
| Base clock speed | 3.2 GHz | 2.3 GHz |
| Boost clock speed | 4.2 GHz | 4.3 GHz |
| Bus type | DMI 3.0 | DMI 3.0 |
| Bus rate | 4 × 8 GT/s | 4 × 8 GT/s |
| Multiplier | 32 | 23 |
| L1 cache | 64K (per core) | 64K (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 11 MB (shared) | 24.75 MB (shared) |
| Chip lithography | 14 nm | 14 nm |
| Die size | 484 mm2 | 484 mm2 |
| Maximum case temperature (TCase) | 70 °C | 66 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon W-2140B and Xeon W-2191B 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 (Uniprocessor) |
| Socket | 2066 | 2066 |
| Power consumption (TDP) | 120 Watt | 140 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon W-2140B and Xeon W-2191B. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | + | + |
Security technologies
Xeon W-2140B and Xeon W-2191B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon W-2140B and Xeon W-2191B are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon W-2140B and Xeon W-2191B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR4-2666 |
| Maximum memory size | 512 GB | 512 GB |
| Max memory channels | no data | 4 |
| Maximum memory bandwidth | 85.33 GB/s | 85.33 GB/s |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Xeon W-2140B and Xeon W-2191B.
| 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 | 10.90 | 17.65 |
| Physical cores | 8 | 18 |
| Threads | 16 | 36 |
| Power consumption (TDP) | 120 Watt | 140 Watt |
Xeon W-2140B has 16.7% lower power consumption.
Xeon W-2191B, on the other hand, has a 61.9% higher aggregate performance score, and 125% more physical cores and 125% more threads.
The Xeon W-2191B is our recommended choice as it beats the Xeon W-2140B in performance tests.
Should you still have questions on choice between Xeon W-2140B and Xeon W-2191B, ask them in Comments section, and we shall answer.
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