Ultra 9 275HX vs Xeon D-2146NT
Aggregate performance score
Core Ultra 9 275HX outperforms Xeon D-2146NT by a whopping 420% based on our aggregate benchmark results.
Primary details
Comparing Xeon D-2146NT and Core Ultra 9 275HX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1017 | 82 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 7.40 | no data |
| Market segment | Server | Laptop |
| Series | Intel Xeon D | no data |
| Power efficiency | 8.73 | 65.94 |
| Architecture codename | Skylake (server) (2017−2018) | no data |
| Release date | 7 February 2018 (7 years ago) | 1 January 2025 (less than a year ago) |
| Launch price (MSRP) | $641 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon D-2146NT and Core Ultra 9 275HX 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) | 24 (Tetracosa-Core) |
| Performance-cores | no data | 8 |
| Efficient-cores | no data | 16 |
| Threads | 16 | 24 |
| Base clock speed | 2.3 GHz | no data |
| Boost clock speed | 3 GHz | 5.4 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 23 | no data |
| L1 cache | 512 KB | no data |
| L2 cache | 8 MB | no data |
| L3 cache | 11 MB | 36 MB |
| Chip lithography | 14 nm | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon D-2146NT and Core Ultra 9 275HX 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) | no data |
| Socket | FCBGA2518 | FCBGA2114 |
| Power consumption (TDP) | 80 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon D-2146NT and Core Ultra 9 275HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX2, Intel® AVX-512 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | + | no data |
| Speed Shift | no data | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Turbo Boost Max 3.0 | - | + |
| Deep Learning Boost | - | + |
| Supported AI Software Frameworks | - | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN |
Security technologies
Xeon D-2146NT and Core Ultra 9 275HX 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 Core Ultra 9 275HX are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon D-2146NT and Core Ultra 9 275HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR5-6400 |
| Maximum memory size | 512 GB | 192 GB |
| Max memory channels | 4 | 2 |
| 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 | Intel® Graphics |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 1.9 GHz |
Graphics interfaces
Available interfaces and connections of Xeon D-2146NT and Core Ultra 9 275HX integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Xeon D-2146NT and Core Ultra 9 275HX integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL) |
| Max resolution over eDP | no data | 3840x2400 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Xeon D-2146NT and Core Ultra 9 275HX integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Xeon D-2146NT and Core Ultra 9 275HX.
| PCIe version | 3.0 | 5.0 and 4.0 |
| PCI Express lanes | 32 | 24 |
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 | 7.33 | 38.08 |
| Recency | 7 February 2018 | 1 January 2025 |
| Physical cores | 8 | 24 |
| Threads | 16 | 24 |
| Power consumption (TDP) | 80 Watt | 55 Watt |
Ultra 9 275HX has a 419.5% higher aggregate performance score, an age advantage of 6 years, 200% more physical cores and 50% more threads, and 45.5% lower power consumption.
The Core Ultra 9 275HX is our recommended choice as it beats the Xeon D-2146NT in performance tests.
Be aware that Xeon D-2146NT is a server/workstation processor while Core Ultra 9 275HX is a notebook one.
Should you still have questions on choice between Xeon D-2146NT and Core Ultra 9 275HX, ask them in Comments section, and we shall answer.
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