Xeon D-1577 vs D-2146NT
Aggregate performance score
Xeon D-2146NT outperforms Xeon D-1577 by a minimal 1% based on our aggregate benchmark results.
Primary details
Comparing Xeon D-2146NT and Xeon D-1577 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 973 | 977 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 8.21 | 1.84 |
| Market segment | Server | Server |
| Series | Intel Xeon D | Intel Xeon D |
| Power efficiency | 8.74 | 15.42 |
| 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) | $641 | $1,176 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon D-2146NT has 346% better value for money than Xeon D-1577.
Detailed specifications
Xeon D-2146NT and Xeon D-1577 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) | 16 (Hexadeca-Core) |
| Threads | 16 | 32 |
| Base clock speed | 2.3 GHz | 1.3 GHz |
| Boost clock speed | 3 GHz | 2.1 GHz |
| Bus type | DMI 3.0 | DMI 2.0 |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 23 | 13 |
| L1 cache | 512 KB | 64K (per core) |
| L2 cache | 8 MB | 256K (per core) |
| L3 cache | 11 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-2146NT and Xeon D-1577 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) | 80 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon D-2146NT and Xeon D-1577. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX2, Intel® AVX-512 | 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-2146NT and Xeon D-1577 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-2146NT and Xeon D-1577 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon D-2146NT and Xeon D-1577. 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 | 85.33 GB/s | 38.397 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon D-2146NT and Xeon D-1577.
| 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 | + |
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.
Pros & cons summary
| Performance score | 7.39 | 7.33 |
| Recency | 7 February 2018 | 24 February 2016 |
| Physical cores | 8 | 16 |
| Threads | 16 | 32 |
| Power consumption (TDP) | 80 Watt | 45 Watt |
Xeon D-2146NT has a 0.8% higher aggregate performance score, and an age advantage of 1 year.
Xeon D-1577, on the other hand, has 100% more physical cores and 100% more threads, and 77.8% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Xeon D-2146NT and Xeon D-1577.
Should you still have questions on choice between Xeon D-2146NT and Xeon D-1577, ask them in Comments section, and we shall answer.
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