Celeron M 520 vs Mobile Sempron 3400+
Aggregate performance score
Mobile Sempron 3400+ outperforms Celeron M 520 by a moderate 13% based on our aggregate benchmark results.
Primary details
Comparing Mobile Sempron 3400+ and Celeron M 520 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3280 | 3318 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Mobile Sempron | Celeron M |
| Power efficiency | 0.26 | 0.47 |
| Architecture codename | Albany | Merom (2006−2008) |
| Release date | no data | no data |
Detailed specifications
Mobile Sempron 3400+ and Celeron M 520 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 | 1 |
| Base clock speed | no data | 1.6 GHz |
| Boost clock speed | 2 GHz | 1.6 GHz |
| Bus rate | 800 MHz | 533 MHz |
| L3 cache | no data | 1 MB L2 Cache |
| Chip lithography | no data | 65 nm |
| Maximum core temperature | no data | 100 °C |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.95V-1.3V |
Compatibility
Information on Mobile Sempron 3400+ and Celeron M 520 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.
| Socket | no data | PPGA478 |
| Power consumption (TDP) | 62 Watt | 30 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron 3400+ and Celeron M 520. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | no data | - |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | - |
| Demand Based Switching | no data | - |
| FSB parity | no data | - |
Security technologies
Mobile Sempron 3400+ and Celeron M 520 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 3400+ and Celeron M 520 are enumerated here.
| VT-x | no data | - |
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 | 0.17 | 0.15 |
| Power consumption (TDP) | 62 Watt | 30 Watt |
Mobile Sempron 3400+ has a 13.3% higher aggregate performance score.
Celeron M 520, on the other hand, has 106.7% lower power consumption.
The Mobile Sempron 3400+ is our recommended choice as it beats the Celeron M 520 in performance tests.
Should you still have questions on choice between Mobile Sempron 3400+ and Celeron M 520, ask them in Comments section, and we shall answer.
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