Atom N550 vs Pentium M 745
Aggregate performance score
Primary details
Comparing Pentium M 745 and Atom N550 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3259 | 3266 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Pentium M | Intel Atom |
| Power efficiency | 0.81 | 1.89 |
| Architecture codename | Dothan (2004−2005) | Pineview (2009−2011) |
| Release date | 10 May 2004 (20 years ago) | 23 August 2010 (14 years ago) |
| Launch price (MSRP) | no data | $86 |
Detailed specifications
Pentium M 745 and Atom N550 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) | 2 (Dual-core) |
| Threads | 1 | 4 |
| Base clock speed | 1.8 GHz | 1.5 GHz |
| Boost clock speed | 1.8 GHz | 1.5 GHz |
| Bus rate | 400 MHz | 666 MHz |
| L1 cache | 32 KB | 64K (per core) |
| L2 cache | 2 MB | 512K (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 90 nm | 45 nm |
| Die size | 87 mm2 | 87 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | 144 million | 176 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.276V-1.34V | no data |
Compatibility
Information on Pentium M 745 and Atom N550 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 | 1 |
| Socket | H-PBGA479,PPGA478 | FCBGA559 |
| Power consumption (TDP) | 7.5 Watt | 8.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium M 745 and Atom N550. 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 | - | - |
| FSB parity | - | no data |
Security technologies
Pentium M 745 and Atom N550 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium M 745 and Atom N550 are enumerated here.
| VT-d | no data | - |
| VT-x | - | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium M 745 and Atom N550. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3 |
| 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 | On certain motherboards (Chipset feature) | Intel GMA 3150 |
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.
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
| Recency | 10 May 2004 | 23 August 2010 |
| Physical cores | 1 | 2 |
| Threads | 1 | 4 |
| Chip lithography | 90 nm | 45 nm |
| Power consumption (TDP) | 7 Watt | 8 Watt |
Pentium M 745 has 14.3% lower power consumption.
Atom N550, on the other hand, has an age advantage of 6 years, 100% more physical cores and 300% more threads, and a 100% more advanced lithography process.
Given the minimal performance differences, no clear winner can be declared between Pentium M 745 and Atom N550.
Should you still have questions on choice between Pentium M 745 and Atom N550, ask them in Comments section, and we shall answer.
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