Ryzen 9 7950X vs Pentium III 866
Primary details
Comparing Pentium III 866 and Ryzen 9 7950X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 67 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | no data | 21.95 |
| Architecture codename | Coppermine T (2000) | Raphael (Zen 4) (2022) |
| Release date | 20 March 2000 (24 years ago) | 27 September 2022 (2 years ago) |
Detailed specifications
Pentium III 866 and Ryzen 9 7950X 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) | 16 (Hexadeca-Core) |
| Threads | 1 | 32 |
| Base clock speed | no data | 4.5 GHz |
| Boost clock speed | 0.87 GHz | 5.7 GHz |
| L1 cache | 32 KB | 64K (per core) |
| L2 cache | 256 KB | 1 MB (per core) |
| L3 cache | 0 KB | 64 MB (shared) |
| Chip lithography | 180 nm | 5 nm |
| Die size | 106 mm2 | CCD = 2x 70 sq. mm, I/O = 122 mm2 |
| Maximum core temperature | no data | 95 °C |
| Maximum case temperature (TCase) | 80 °C | 47 °C |
| Number of transistors | 28 million | 13140 Million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Pentium III 866 and Ryzen 9 7950X 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 | AM5 |
| Power consumption (TDP) | 27 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium III 866 and Ryzen 9 7950X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | CCD = 5 nm, I/O = 6 nm, 0.650 - 1.475 V |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium III 866 and Ryzen 9 7950X are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium III 866 and Ryzen 9 7950X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5-5200 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | AMD Radeon Graphics (Ryzen 7000) (400 - 2200 MHz) |
Peripherals
Specifications and connection of peripherals supported by Pentium III 866 and Ryzen 9 7950X.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 24 |
Pros & cons summary
| Recency | 20 March 2000 | 27 September 2022 |
| Physical cores | 1 | 16 |
| Threads | 1 | 32 |
| Chip lithography | 180 nm | 5 nm |
| Power consumption (TDP) | 27 Watt | 170 Watt |
Pentium III 866 has 529.6% lower power consumption.
Ryzen 9 7950X, on the other hand, has an age advantage of 22 years, 1500% more physical cores and 3100% more threads, and a 3500% more advanced lithography process.
We couldn't decide between Pentium III 866 and Ryzen 9 7950X. We've got no test results to judge.
Should you still have questions on choice between Pentium III 866 and Ryzen 9 7950X, ask them in Comments section, and we shall answer.
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