Xeon 6516P-B vs D-2146NT
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1116 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 6.05 | no data |
| Market segment | Server | Server |
| Series | Intel Xeon D | no data |
| Power efficiency | 3.53 | no data |
| Designer | Intel | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Skylake (server) (2017−2018) | Granite Rapids (2024−2025) |
| Release date | 7 February 2018 (7 years ago) | 24 February 2025 (less than a year ago) |
| Launch price (MSRP) | $641 | $1,544 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon D-2146NT and Xeon 6516P-B 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) | 20 (Icosa-Core) |
| Performance-cores | no data | 20 |
| Threads | 16 | 40 |
| Base clock speed | 2.3 GHz | 2.3 GHz |
| Boost clock speed | 3 GHz | 3.5 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 23 | no data |
| L1 cache | 512 KB | 112 KB (per core) |
| L2 cache | 8 MB | 2 MB (per core) |
| L3 cache | 11 MB | 80 MB (shared) |
| Chip lithography | 14 nm | Intel 3 nm |
| Die size | no data | 598 mm2 |
| Maximum case temperature (TCase) | no data | 85 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon D-2146NT and Xeon 6516P-B 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) | 2 |
| Socket | FCBGA2518 | FCBGA4368 |
| Power consumption (TDP) | 80 Watt | 145 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon D-2146NT and Xeon 6516P-B. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX2, Intel® AVX-512 | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | - |
| QuickAssist | + | + |
| Speed Shift | no data | - |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | + | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Turbo Boost Max 3.0 | - | no data |
| Deep Learning Boost | - | + |
Security technologies
Xeon D-2146NT and Xeon 6516P-B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | no data |
| MPX | + | - |
| SGX | - | Yes with Intel® SPS |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon D-2146NT and Xeon 6516P-B 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 6516P-B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR5 |
| Maximum memory size | 512 GB | 1.13 TB |
| Max memory channels | 4 | 4 |
| Maximum memory bandwidth | 85.33 GB/s | no data |
| ECC memory support | + | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon D-2146NT and Xeon 6516P-B.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 32 | 48 |
| PCI support | no data | Gen 4, Gen 5 |
| Integrated LAN | no data | + |
Pros & cons summary
| Recency | 7 February 2018 | 24 February 2025 |
| Physical cores | 8 | 20 |
| Threads | 16 | 40 |
| Power consumption (TDP) | 80 Watt | 145 Watt |
Xeon D-2146NT has 81.3% lower power consumption.
Xeon 6516P-B, on the other hand, has an age advantage of 7 years, and 150% more physical cores and 150% more threads.
We couldn't decide between Intel Xeon D-2146NT and Intel Xeon 6516P-B. We've got no test results to judge.
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