Ryzen 7 7700X vs Pentium D 945
Primary details
Comparing Pentium D 945 and Ryzen 7 7700X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 230 |
| Place by popularity | not in top-100 | 97 |
| Cost-effectiveness evaluation | no data | 43.60 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | AMD Ryzen 7 |
| Power efficiency | no data | 20.42 |
| Architecture codename | Presler (2005−2007) | Raphael (Zen4) (2022−2023) |
| Release date | 23 July 2006 (18 years ago) | 29 August 2022 (2 years ago) |
| Launch price (MSRP) | $163 | $399 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium D 945 and Ryzen 7 7700X 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 | 3.4 GHz | 4.5 GHz |
| Boost clock speed | 3.4 GHz | 5.4 GHz |
| L1 cache | 16 KB (per core) | 512 KB |
| L2 cache | 2 MB (per die) | 8 MB |
| L3 cache | 0 KB | 32 MB (shared) |
| Chip lithography | 65 nm | 5 nm, 6 nm |
| Die size | 2x 81 mm2 | 71+122 mm |
| Maximum core temperature | no data | 95 °C |
| Maximum case temperature (TCase) | 63 °C | 61 °C |
| Number of transistors | 376 million | 6,570 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
| VID voltage range | 1.2V-1.3375V | no data |
Compatibility
Information on Pentium D 945 and Ryzen 7 7700X 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 | AM5 |
| Power consumption (TDP) | 95 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 945 and Ryzen 7 7700X. 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 | - | + |
| 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 |
| Precision Boost 2 | no data | + |
Security technologies
Pentium D 945 and Ryzen 7 7700X 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 945 and Ryzen 7 7700X 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 945 and Ryzen 7 7700X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR5-5200 |
| Maximum memory size | no data | 128 GB |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | AMD Radeon Graphics (Ryzen 7000) |
Peripherals
Specifications and connection of peripherals supported by Pentium D 945 and Ryzen 7 7700X.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 24 |
Pros & cons summary
| Recency | 23 July 2006 | 29 August 2022 |
| Physical cores | 2 | 8 |
| Threads | 2 | 16 |
| Chip lithography | 65 nm | 5 nm |
| Power consumption (TDP) | 95 Watt | 105 Watt |
Pentium D 945 has 10.5% lower power consumption.
Ryzen 7 7700X, on the other hand, has an age advantage of 16 years, 300% more physical cores and 700% more threads, and a 1200% more advanced lithography process.
We couldn't decide between Pentium D 945 and Ryzen 7 7700X. We've got no test results to judge.
Should you still have questions on choice between Pentium D 945 and Ryzen 7 7700X, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
