Celeron M 520 vs M 900
Primary details
Comparing Celeron M 900 and Celeron M 520 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 | Intel Celeron M | Celeron M |
| Architecture codename | Penryn (2008−2011) | Merom (2006−2008) |
| Release date | 1 April 2009 (15 years ago) | no data (2024 years ago) |
| Launch price (MSRP) | $70 | no data |
Detailed specifications
Celeron M 900 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 | 2.2 GHz | 1.6 GHz |
| Bus rate | 800 MHz | 533 MHz |
| L2 cache | 1 MB | no data |
| L3 cache | no data | 1 MB L2 Cache |
| Chip lithography | 45 nm | 65 nm |
| Die size | 107 mm2 | no data |
| Maximum core temperature | 105 °C | 100 °C |
| Number of transistors | 410 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.95V-1.3V |
Compatibility
Information on Celeron M 900 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 | PGA478 | PPGA478 |
| Power consumption (TDP) | 35 Watt | 30 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron M 900 and Celeron M 520. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | - |
| 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
Celeron M 900 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 Celeron M 900 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.
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
| Chip lithography | 45 nm | 65 nm |
| Power consumption (TDP) | 35 Watt | 30 Watt |
Celeron M 900 has a 44.4% more advanced lithography process.
Celeron M 520, on the other hand, has 16.7% lower power consumption.
We couldn't decide between Celeron M 900 and Celeron M 520. We've got no test results to judge.
Should you still have questions on choice between Celeron M 900 and Celeron M 520, ask them in Comments section, and we shall answer.
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