Mobile Pentium III 500 vs Pentium III 866
Primary details
Comparing Pentium III 866 and Mobile Pentium III 500 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 | Desktop processor | Laptop |
| Architecture codename | Coppermine T (2000) | Coppermine (1999−2001) |
| Release date | 20 March 2000 (24 years ago) | 25 October 1999 (25 years ago) |
| Launch price (MSRP) | no data | $530 |
Detailed specifications
Pentium III 866 and Mobile Pentium III 500 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 | 0.87 GHz | 0.5 GHz |
| L1 cache | 32 KB | 32 KB |
| L2 cache | 256 KB | 256 KB |
| L3 cache | 0 KB | no data |
| Chip lithography | 180 nm | 180 nm |
| Die size | 106 mm2 | 106 mm2 |
| Maximum case temperature (TCase) | 80 °C | no data |
| Number of transistors | 28 million | 28 million |
| 64 bit support | - | - |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Pentium III 866 and Mobile Pentium III 500 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 | 2 | 1 |
| Socket | 370 | 495 |
| Power consumption (TDP) | 27 Watt | 17 Watt |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | On certain motherboards (Chipset feature) |
Pros & cons summary
| Recency | 20 March 2000 | 25 October 1999 |
| Power consumption (TDP) | 27 Watt | 17 Watt |
Pentium III 866 has an age advantage of 4 months.
Mobile Pentium III 500, on the other hand, has 58.8% lower power consumption.
We couldn't decide between Pentium III 866 and Mobile Pentium III 500. We've got no test results to judge.
Note that Pentium III 866 is a desktop processor while Mobile Pentium III 500 is a notebook one.
Should you still have questions on choice between Pentium III 866 and Mobile Pentium III 500, ask them in Comments section, and we shall answer.
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