Atom N450 vs Celeron M 390
Primary details
Comparing Celeron M 390 and Atom N450 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Celeron M | Intel Atom |
| Architecture codename | Dothan (2004−2005) | Pinetrail (2009−2011) |
| Release date | no data (2024 years ago) | 21 December 2009 (14 years ago) |
| Launch price (MSRP) | no data | $64 |
Detailed specifications
Celeron M 390 and Atom N450 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 | 1 (Single-Core) | 1 (Single-Core) |
| Threads | 1 | 2 |
| Base clock speed | 1.7 GHz | 1.66 GHz |
| Boost clock speed | 1.7 GHz | 1.67 GHz |
| Bus rate | 400 MHz | 533 MHz |
| L1 cache | no data | 56 KB (per core) |
| L2 cache | no data | 512 KB (per core) |
| L3 cache | 1 MB L2 KB | 0 KB |
| Chip lithography | 90 nm | 45 nm |
| Die size | no data | 66 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| Number of transistors | no data | 123 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.004V-1.292V | no data |
Compatibility
Information on Celeron M 390 and Atom N450 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 | PPGA478, H-PBGA479 | FCBGA559 |
| Power consumption (TDP) | 21 Watt | 5.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron M 390 and Atom N450. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| Enhanced SpeedStep (EIST) | - | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | + |
| Idle States | - | no data |
| Thermal Monitoring | - | + |
| Demand Based Switching | - | - |
| PAE | 32 Bit | no data |
| FSB parity | - | no data |
Security technologies
Celeron M 390 and Atom N450 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron M 390 and Atom N450 are enumerated here.
| VT-d | no data | - |
| VT-x | - | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron M 390 and Atom N450. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR2 |
| Maximum memory size | no data | 2 GB |
| Max memory channels | no data | 1 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Pros & cons summary
| Threads | 1 | 2 |
| Chip lithography | 90 nm | 45 nm |
| Power consumption (TDP) | 21 Watt | 5 Watt |
Atom N450 has 100% more threads, a 100% more advanced lithography process, and 320% lower power consumption.
We couldn't decide between Celeron M 390 and Atom N450. We've got no test results to judge.
Should you still have questions on choice between Celeron M 390 and Atom N450, ask them in Comments section, and we shall answer.
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