Ryzen 9 7950X vs Pentium D 840
Primary details
Comparing Pentium D 840 and Ryzen 9 7950X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | 59 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 60.00 |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Smithfield (2005) | Raphael (Zen 4) |
| Release date | May 2005 (19 years ago) | 26 September 2022 (1 year ago) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium D 840 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 | 2 (Dual-core) | 16 (Hexadeca-Core) |
| Threads | 2 | 32 |
| Base clock speed | no data | 4.5 GHz |
| Boost clock speed | 3.2 GHz | 5.7 GHz |
| L1 cache | 28 KB | 1 MB |
| L2 cache | 2 MB | 16 MB |
| L3 cache | 0 KB | 64 MB |
| Chip lithography | 90 nm | 0 nm |
| Die size | 206 mm2 | CCD = 2x 70 sq. mm, I/O = 122 mm2 |
| Maximum core temperature | 70 °C | 95 °C |
| Maximum case temperature (TCase) | no data | 47 °C |
| Number of transistors | 169 million | 13140 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | Yes |
Compatibility
Information on Pentium D 840 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 | 775 | AM5 (LGA1718) |
| Power consumption (TDP) | 130 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 840 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 | no data | + |
| AVX | no data | + |
| Enhanced SpeedStep (EIST) | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium D 840 and Ryzen 9 7950X are enumerated here.
| AMD-V | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium D 840 and Ryzen 9 7950X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR5-5200 |
| ECC memory support | - | no data |
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 D 840 and Ryzen 9 7950X.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 24 |
Pros & cons summary
| Physical cores | 2 | 16 |
| Threads | 2 | 32 |
| Power consumption (TDP) | 130 Watt | 170 Watt |
Pentium D 840 has 30.8% lower power consumption.
Ryzen 9 7950X, on the other hand, has 700% more physical cores and 1500% more threads.
We couldn't decide between Pentium D 840 and Ryzen 9 7950X. We've got no test results to judge.
Should you still have questions on choice between Pentium D 840 and Ryzen 9 7950X, ask them in Comments section, and we shall answer.
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