Pentium III 1266S vs Sempron 140
Aggregate performance score
Sempron 140 outperforms Pentium III 1266S by an impressive 63% based on our aggregate benchmark results.
Primary details
Comparing Sempron 140 and Pentium III 1266S processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3109 | 3242 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 0.65 | 0.60 |
| Architecture codename | Sargas (2009−2011) | Tualatin (2000−2002) |
| Release date | 22 July 2009 (15 years ago) | July 2001 (23 years ago) |
| Launch price (MSRP) | $40 | no data |
Detailed specifications
Sempron 140 and Pentium III 1266S 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 | 2.7 GHz | no data |
| Boost clock speed | 2.7 GHz | 1.27 GHz |
| L1 cache | 128 KB (per core) | 8 KB |
| L2 cache | 1 MB (per core) | 512 KB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 45 nm | 130 nm |
| Die size | 117 mm2 | 80 mm2 |
| Maximum case temperature (TCase) | no data | 69 °C |
| Number of transistors | 234 million | 44 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Sempron 140 and Pentium III 1266S 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 | AM3 | 370 |
| Power consumption (TDP) | 45 Watt | 30 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Sempron 140 and Pentium III 1266S. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | no data |
Peripherals
Specifications and connection of peripherals supported by Sempron 140 and Pentium III 1266S.
| PCIe version | 2.0 | 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 | 0.31 | 0.19 |
| Chip lithography | 45 nm | 130 nm |
| Power consumption (TDP) | 45 Watt | 30 Watt |
Sempron 140 has a 63.2% higher aggregate performance score, and a 188.9% more advanced lithography process.
Pentium III 1266S, on the other hand, has 50% lower power consumption.
The Sempron 140 is our recommended choice as it beats the Pentium III 1266S in performance tests.
Should you still have questions on choice between Sempron 140 and Pentium III 1266S, ask them in Comments section, and we shall answer.
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