Atom N455 vs Ultra 7 366H
Aggregate performance score
Core Ultra 7 366H outperforms Atom N455 by a whopping 17573% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 370 | 3685 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | no data | Intel Atom |
| Power efficiency | 32.81 | 0.66 |
| Designer | Intel | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Panther Lake (2026) | Pinetrail (2009−2011) |
| Release date | no data | 1 June 2010 (15 years ago) |
| Launch price (MSRP) | no data | $64 |
Detailed specifications
Basic parameters of Core Ultra 7 366H and Atom N455: 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 | 16 (Hexadeca-Core) | 1 (Single-Core) |
| Performance-cores | 4 | no data |
| Efficient-cores | 8 | no data |
| Low Power Efficient-cores | 4 | no data |
| Threads | 16 | 2 |
| Base clock speed | 1.6 GHz | 1.66 GHz |
| Boost clock speed | 4.8 GHz | 1.67 GHz |
| Bus rate | no data | 533 MHz |
| L1 cache | no data | 64 KB (per core) |
| L2 cache | no data | 512K (per core) |
| L3 cache | 18 MB Intel® Smart Cache | 0 KB |
| Chip lithography | no data | 45 nm |
| Die size | no data | 66 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | no data | 123 million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
Compatibility
Information on Core Ultra 7 366H and Atom N455 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 | no data | 1 |
| Socket | FCBGA2540 | FCBGA559 |
| Power consumption (TDP) | 25 Watt | 6.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 7 366H and Atom N455. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| AES-NI | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | - |
| Hyper-Threading Technology | no data | + |
| Thermal Monitoring | + | + |
| SIPP | + | - |
| Demand Based Switching | no data | - |
| Turbo Boost Max 3.0 | + | no data |
| Deep Learning Boost | + | - |
| Supported AI Software Frameworks | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN | - |
Security technologies
Core Ultra 7 366H and Atom N455 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 7 366H and Atom N455 are enumerated here.
| VT-d | + | - |
| VT-x | + | - |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 366H and Atom N455. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | LPDDR5X-8533, DDR5-7200 | DDR3 |
| Maximum memory size | 128 GB | 2 GB |
| Max memory channels | 2 | 1 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® Graphics | Intel GMA 3150 |
| Quick Sync Video | + | - |
| Graphics max frequency | 2.5 GHz | no data |
Graphics interfaces
Available interfaces and connections of Core Ultra 7 366H and Atom N455 integrated GPUs.
| Number of displays supported | 4 | no data |
Graphics image quality
Maximum display resolutions supported by Core Ultra 7 366H and Atom N455 integrated GPUs, including resolutions over different interfaces.
| Max resolution over eDP | 3840 x 2400 @ 120Hz | no data |
| Max resolution over DisplayPort | 7680 x 4320 @ 60Hz | no data |
Graphics API support
APIs supported by Core Ultra 7 366H and Atom N455 integrated GPUs, sometimes API versions are included.
| DirectX | DirectX 12 Ultimate | no data |
| OpenGL | 4.6 | no data |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 7 366H and Atom N455.
| PCIe version | 5.0 and 4.0 | no data |
| PCI Express lanes | 20 | no data |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 19.44 | 0.11 |
| Physical cores | 16 | 1 |
| Threads | 16 | 2 |
| Power consumption (TDP) | 25 Watt | 6 Watt |
Ultra 7 366H has a 17573% higher aggregate performance score, and 1500% more physical cores and 700% more threads.
Atom N455, on the other hand, has 317% lower power consumption.
The Intel Core Ultra 7 366H is our recommended choice as it beats the Intel Atom N455 in performance tests.
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