Pentium III 1400S vs Celeron M 900
Aggregate performance score
Pentium III 1400S outperforms Celeron M 900 by an impressive 50% based on our aggregate benchmark results.
Primary details
Comparing Celeron M 900 and Pentium III 1400S processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3385 | 3345 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Celeron M | no data |
| Power efficiency | 0.22 | 0.35 |
| Architecture codename | Penryn (2008−2011) | Tualatin (2000−2002) |
| Release date | 1 April 2009 (15 years ago) | January 2002 (22 years ago) |
| Launch price (MSRP) | $70 | no data |
Detailed specifications
Celeron M 900 and Pentium III 1400S 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 |
| Boost clock speed | 2.2 GHz | 1.4 GHz |
| Bus rate | 800 MHz | no data |
| L1 cache | no data | 8 KB |
| L2 cache | 1 MB | 512 KB |
| L3 cache | no data | 0 KB |
| Chip lithography | 45 nm | 130 nm |
| Die size | 107 mm2 | 80 mm2 |
| Maximum core temperature | 105 °C | no data |
| Maximum case temperature (TCase) | no data | 69 °C |
| Number of transistors | 410 Million | 44 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Celeron M 900 and Pentium III 1400S 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 | PGA478 | 370 |
| Power consumption (TDP) | 35 Watt | 32 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron M 900 and Pentium III 1400S. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | 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 | 0.08 | 0.12 |
| Chip lithography | 45 nm | 130 nm |
| Power consumption (TDP) | 35 Watt | 32 Watt |
Celeron M 900 has a 188.9% more advanced lithography process.
Pentium III 1400S, on the other hand, has a 50% higher aggregate performance score, and 9.4% lower power consumption.
The Pentium III 1400S is our recommended choice as it beats the Celeron M 900 in performance tests.
Be aware that Celeron M 900 is a notebook processor while Pentium III 1400S is a desktop one.
Should you still have questions on choice between Celeron M 900 and Pentium III 1400S, ask them in Comments section, and we shall answer.
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