Atom N270 vs Mobile Sempron SI-42
Aggregate performance score
Mobile Sempron SI-42 outperforms Atom N270 by a whopping 144% based on our aggregate benchmark results.
Primary details
Comparing Mobile Sempron SI-42 and Atom N270 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3192 | 3380 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Mobile Sempron | Intel Atom |
| Power efficiency | 0.83 | 3.41 |
| Architecture codename | Sable (2008−2009) | DiamondVille (2008−2009) |
| Release date | 1 September 2009 (15 years ago) | 2 April 2008 (16 years ago) |
| Launch price (MSRP) | no data | $44 |
Detailed specifications
Mobile Sempron SI-42 and Atom N270 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 | no data | 1.6 GHz |
| Boost clock speed | 2.1 GHz | 0.1 GHz |
| Bus type | no data | FSB |
| Bus rate | 1800 MHz | 533.33 MT/s |
| Multiplier | no data | 12 |
| L1 cache | 128 KB | 56 KB |
| L2 cache | 512 KB | 512 KB |
| L3 cache | no data | 0 KB |
| Chip lithography | 65 nm | 45 nm |
| Die size | no data | 25.9638 mm2 |
| Maximum core temperature | 100 °C | 90 °C |
| Number of transistors | no data | 47 Million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.9V-1.1625V |
Compatibility
Information on Mobile Sempron SI-42 and Atom N270 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 (Uniprocessor) |
| Socket | S1g2 | PBGA437 |
| Power consumption (TDP) | 25 Watt | 2.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron SI-42 and Atom N270. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 65 nm, 1.075 - 1.125 | Intel® SSE, Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | - |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | - |
| FSB parity | no data | - |
Security technologies
Mobile Sempron SI-42 and Atom N270 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Mobile Sempron SI-42 and Atom N270 are enumerated here.
| VT-d | no data | - |
| VT-x | no data | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Mobile Sempron SI-42 and Atom N270. Depending on the motherboard, higher memory frequencies may be supported.
| Maximum memory size | no data | 8 GB |
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.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
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
| Performance score | 0.22 | 0.09 |
| Recency | 1 September 2009 | 2 April 2008 |
| Threads | 1 | 2 |
| Chip lithography | 65 nm | 45 nm |
| Power consumption (TDP) | 25 Watt | 2 Watt |
Mobile Sempron SI-42 has a 144.4% higher aggregate performance score, and an age advantage of 1 year.
Atom N270, on the other hand, has 100% more threads, a 44.4% more advanced lithography process, and 1150% lower power consumption.
The Mobile Sempron SI-42 is our recommended choice as it beats the Atom N270 in performance tests.
Should you still have questions on choice between Mobile Sempron SI-42 and Atom N270, ask them in Comments section, and we shall answer.
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