Xeon D-1581 vs D-2191
Primary details
Comparing Xeon D-2191 and Xeon D-1581 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 912 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Series | Intel Xeon D | Intel Xeon D |
| Power efficiency | no data | 12.15 |
| Architecture codename | Skylake (server) (2017−2018) | Broadwell (2015−2019) |
| Release date | 7 February 2018 (6 years ago) | 24 February 2016 (8 years ago) |
| Launch price (MSRP) | $2,406 | no data |
Detailed specifications
Xeon D-2191 and Xeon D-1581 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) | 16 (Hexadeca-Core) |
| Threads | 36 | 32 |
| Base clock speed | 1.6 GHz | 1.8 GHz |
| Boost clock speed | 3 GHz | 2.4 GHz |
| Bus type | DMI 3.0 | DMI 2.0 |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 16 | 18 |
| L1 cache | 1.125 MB | 64K (per core) |
| L2 cache | 18 MB | 256K (per core) |
| L3 cache | 24.75 MB | 1.5 MB (per core) |
| Chip lithography | 14 nm | 14 nm |
| Die size | no data | 306.18 mm2 |
| Maximum case temperature (TCase) | no data | 80 °C |
| Number of transistors | no data | 3,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon D-2191 and Xeon D-1581 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 | FCBGA2518 | FCBGA1667 |
| Power consumption (TDP) | 86 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon D-2191 and Xeon D-1581. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX2 | Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | - | no data |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | + | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| GPIO | no data | + |
| Turbo Boost Max 3.0 | - | no data |
Security technologies
Xeon D-2191 and Xeon D-1581 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | + |
| MPX | + | - |
| SGX | - | no data |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon D-2191 and Xeon D-1581 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon D-2191 and Xeon D-1581. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4, DDR3 |
| Maximum memory size | 512 GB | 128 GB |
| Max memory channels | 4 | 2 |
| Maximum memory bandwidth | 76.805 GB/s | 34.124 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon D-2191 and Xeon D-1581.
| PCIe version | 3.0 | 2.0/3.0 |
| PCI Express lanes | 32 | 24 |
| USB revision | no data | 2.0/3.0 |
| Total number of SATA ports | no data | 6 |
| Number of USB ports | no data | 8 |
| Integrated LAN | no data | + |
| UART | no data | + |
Pros & cons summary
| Recency | 7 February 2018 | 24 February 2016 |
| Physical cores | 18 | 16 |
| Threads | 36 | 32 |
| Power consumption (TDP) | 86 Watt | 65 Watt |
Xeon D-2191 has an age advantage of 1 year, and 12.5% more physical cores and 12.5% more threads.
Xeon D-1581, on the other hand, has 32.3% lower power consumption.
We couldn't decide between Xeon D-2191 and Xeon D-1581. We've got no test results to judge.
Should you still have questions on choice between Xeon D-2191 and Xeon D-1581, ask them in Comments section, and we shall answer.
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