Ryzen 9 7900 vs Pentium III 800
Primary details
Comparing Pentium III 800 and Ryzen 9 7900 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 133 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 65.57 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | no data | 44.48 |
| Architecture codename | Coppermine T (2000) | Raphael (Zen4) (2022−2023) |
| Release date | no data (2024 years ago) | 14 January 2023 (1 year ago) |
| Launch price (MSRP) | no data | $429 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium III 800 and Ryzen 9 7900 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) | 12 (Dodeca-Core) |
| Threads | 1 | 24 |
| Base clock speed | no data | 3.7 GHz |
| Boost clock speed | 0.8 GHz | 5.4 GHz |
| L1 cache | 8 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 | 80 mm2 | 2x 71 mm2 |
| Maximum core temperature | no data | 95 °C |
| Maximum case temperature (TCase) | 69 °C | 47 °C |
| Number of transistors | 44 million | 13,140 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Pentium III 800 and Ryzen 9 7900 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 | AM5 |
| Power consumption (TDP) | 38 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium III 800 and Ryzen 9 7900. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 5 nm, 0.650 - 1.475V |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium III 800 and Ryzen 9 7900 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium III 800 and Ryzen 9 7900. 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 | no data | AMD Radeon Graphics (Ryzen 7000) ( - 2200 MHz) |
Peripherals
Specifications and connection of peripherals supported by Pentium III 800 and Ryzen 9 7900.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 24 |
Pros & cons summary
| Physical cores | 1 | 12 |
| Threads | 1 | 24 |
| Chip lithography | 180 nm | 5 nm |
| Power consumption (TDP) | 38 Watt | 65 Watt |
Pentium III 800 has 71.1% lower power consumption.
Ryzen 9 7900, on the other hand, has 1100% more physical cores and 2300% more threads, and a 3500% more advanced lithography process.
We couldn't decide between Pentium III 800 and Ryzen 9 7900. We've got no test results to judge.
Should you still have questions on choice between Pentium III 800 and Ryzen 9 7900, ask them in Comments section, and we shall answer.
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