Pentium III 1333 vs Pentium III 866
Primary details
Comparing Pentium III 866 and Pentium III 1333 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Coppermine T (2001) | Tualatin (2000−2002) |
| Release date | no data | December 2001 (22 years ago) |
| Current price | $19.16 | $205 |
Detailed specifications
Pentium III 866 and Pentium III 1333 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 | no data | 1 |
| Boost clock speed | 0.87 GHz | 1.33 GHz |
| L1 cache | 8 KB | 8 KB |
| L2 cache | 256 KB | 256 KB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 180 nm | 130 nm |
| Die size | 80 mm2 | 80 mm2 |
| Maximum case temperature (TCase) | 69 °C | 69 °C |
| Number of transistors | 44 million | 44 million |
| 64 bit support | - | - |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Pentium III 866 and Pentium III 1333 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 | 370 | 370 |
| Power consumption (TDP) | 38 Watt | 30 Watt |
Pros & cons summary
| Chip lithography | 180 nm | 130 nm |
| Power consumption (TDP) | 38 Watt | 30 Watt |
We couldn't decide between Pentium III 866 and Pentium III 1333. We've got no test results to judge.
Should you still have questions on choice between Pentium III 866 and Pentium III 1333, ask them in Comments section, and we shall answer.
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