Ryzen 9 7950X3D vs Pentium III 1400
Primary details
Comparing Pentium III 1400 and Ryzen 9 7950X3D 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 |
| Cost-effectiveness evaluation | no data | 55.73 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | AMD Ryzen 9 |
| Power efficiency | no data | 31.03 |
| Architecture codename | Tualatin (2000−2002) | Raphael (Zen4) (2022−2023) |
| Release date | December 2001 (22 years ago) | 4 January 2023 (1 year ago) |
| Launch price (MSRP) | no data | $699 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium III 1400 and Ryzen 9 7950X3D 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 | 4.2 GHz |
| Boost clock speed | 1.4 GHz | 5.7 GHz |
| Bus rate | no data | 64K (per core) |
| L1 cache | 8 KB | 1024 KB |
| L2 cache | 256 KB | 16 MB |
| L3 cache | 0 KB | 128 MB (shared) |
| Chip lithography | 130 nm | 5 nm, 6 nm |
| Die size | 80 mm2 | 71+71+122 mm |
| Maximum core temperature | no data | 89 °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 1400 and Ryzen 9 7950X3D 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) | 31 Watt | 120 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium III 1400 and Ryzen 9 7950X3D. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, AVX512F, FMA3, SHA, XFR2, Precision Boost 2 |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium III 1400 and Ryzen 9 7950X3D are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium III 1400 and Ryzen 9 7950X3D. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5-5200 |
| Maximum memory size | no data | 128 GB |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon Graphics (Ryzen 7000) |
Peripherals
Specifications and connection of peripherals supported by Pentium III 1400 and Ryzen 9 7950X3D.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 24 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Physical cores | 1 | 16 |
| Threads | 1 | 32 |
| Chip lithography | 130 nm | 5 nm |
| Power consumption (TDP) | 31 Watt | 120 Watt |
Pentium III 1400 has 287.1% lower power consumption.
Ryzen 9 7950X3D, on the other hand, has 1500% more physical cores and 3100% more threads, and a 2500% more advanced lithography process.
We couldn't decide between Pentium III 1400 and Ryzen 9 7950X3D. We've got no test results to judge.
Should you still have questions on choice between Pentium III 1400 and Ryzen 9 7950X3D, ask them in Comments section, and we shall answer.
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