Ryzen 7 5800X vs Pentium D 940
Primary details
Comparing Pentium D 940 and Ryzen 7 5800X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | 334 |
| Place by popularity | not in top-100 | 81 |
| Cost-effectiveness evaluation | no data | 25.18 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | AMD Ryzen 7 |
| Architecture codename | Presler (2005−2007) | Vermeer (Zen 3) (2020−2022) |
| Release date | 5 January 2006 (18 years ago) | 8 October 2020 (3 years ago) |
| Launch price (MSRP) | no data | $449 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium D 940 and Ryzen 7 5800X 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) | 8 (Octa-Core) |
| Threads | 2 | 16 |
| Base clock speed | 3.2 GHz | 3.8 GHz |
| Boost clock speed | 3.2 GHz | 4.7 GHz |
| Multiplier | no data | 38 |
| L1 cache | 16 KB (per core) | 512 KB |
| L2 cache | 2 MB (per die) | 4 MB |
| L3 cache | 0 KB | 32 MB |
| Chip lithography | 65 nm | 7 nm, 12 nm |
| Die size | 2x 81 mm2 | 2 x 80.7 sq. mm; I/O = 125 mm2 |
| Maximum core temperature | no data | 90 °C |
| Maximum case temperature (TCase) | 69 °C | 95 °C |
| Number of transistors | 376 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
| VID voltage range | 1.2V-1.3375V | no data |
Compatibility
Information on Pentium D 940 and Ryzen 7 5800X 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 | LGA775,PLGA775 | AM4 (LGA1331) |
| Power consumption (TDP) | 130 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 940 and Ryzen 7 5800X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Demand Based Switching | - | no data |
| PAE | 32 Bit | no data |
| FSB parity | - | no data |
| Status | Discontinued | no data |
| Precision Boost 2 | no data | + |
Security technologies
Pentium D 940 and Ryzen 7 5800X technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium D 940 and Ryzen 7 5800X are enumerated here.
| AMD-V | - | + |
| VT-d | - | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium D 940 and Ryzen 7 5800X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR4 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 51.196 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | - |
Peripherals
Specifications and connection of peripherals supported by Pentium D 940 and Ryzen 7 5800X.
| PCIe version | no data | 4.0 |
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
| Recency | 5 January 2006 | 8 October 2020 |
| Physical cores | 2 | 8 |
| Threads | 2 | 16 |
| Chip lithography | 65 nm | 7 nm |
| Power consumption (TDP) | 130 Watt | 105 Watt |
Ryzen 7 5800X has an age advantage of 14 years, 300% more physical cores and 700% more threads, a 828.6% more advanced lithography process, and 23.8% lower power consumption.
We couldn't decide between Pentium D 940 and Ryzen 7 5800X. We've got no test results to judge.
Should you still have questions on choice between Pentium D 940 and Ryzen 7 5800X, ask them in Comments section, and we shall answer.
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