Pentium III 866 vs i5-7640K
Primary details
Comparing Core i5-7640K and Pentium III 866 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 | Desktop processor |
| Architecture codename | Kaby Lake-X (2017) | Coppermine T (2000) |
| Release date | no data (2024 years ago) | 20 March 2000 (24 years ago) |
Detailed specifications
Core i5-7640K and Pentium III 866 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 | 4 (Quad-Core) | 1 (Single-Core) |
| Threads | no data | 1 |
| Boost clock speed | 3.9 GHz | 0.87 GHz |
| L1 cache | 64 KB (per core) | 32 KB |
| L2 cache | 256 KB (per core) | 256 KB |
| L3 cache | 6144 KB (shared) | 0 KB |
| Chip lithography | 14 nm | 180 nm |
| Die size | no data | 106 mm2 |
| Maximum case temperature (TCase) | 72 °C | 80 °C |
| Number of transistors | no data | 28 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i5-7640K and Pentium III 866 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 | 2 |
| Socket | 1151 | 370 |
| Power consumption (TDP) | 112 Watt | 27 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-7640K and Pentium III 866. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-7640K and Pentium III 866 are enumerated here.
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i5-7640K and Pentium III 866. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Pros & cons summary
| Physical cores | 4 | 1 |
| Chip lithography | 14 nm | 180 nm |
| Power consumption (TDP) | 112 Watt | 27 Watt |
i5-7640K has 300% more physical cores, and a 1185.7% more advanced lithography process.
Pentium III 866, on the other hand, has 314.8% lower power consumption.
We couldn't decide between Core i5-7640K and Pentium III 866. We've got no test results to judge.
Should you still have questions on choice between Core i5-7640K and Pentium III 866, ask them in Comments section, and we shall answer.
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