Atom D425 vs Pentium D 945
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 3687 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Power efficiency | no data | 0.46 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Presler (2005−2007) | Pineview (2009−2011) |
| Release date | 23 July 2006 (19 years ago) | 21 June 2010 (15 years ago) |
| Launch price (MSRP) | $163 | $993 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Pentium D 945 and Atom D425 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) | 1 (Single-Core) |
| Threads | 2 | 2 |
| Base clock speed | 3.4 GHz | 1.8 GHz |
| Boost clock speed | 3.4 GHz | 1.83 GHz |
| L1 cache | 16 KB (per core) | 64 KB (per core) |
| L2 cache | 2 MB (per die) | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 65 nm | 45 nm |
| Die size | 2x 81 mm2 | 66 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 63 °C | no data |
| Number of transistors | 376 million | 123 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.2V-1.3375V | no data |
Compatibility
Information on Pentium D 945 and Atom D425 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 | FCBGA559 |
| Power consumption (TDP) | 95 Watt | 10 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 945 and Atom D425. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| Enhanced SpeedStep (EIST) | + | - |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | + |
| Idle States | + | - |
| Demand Based Switching | - | - |
| PAE | 32 Bit | 32 Bit |
| FSB parity | - | no data |
Security technologies
Pentium D 945 and Atom D425 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium D 945 and Atom D425 are enumerated here.
| VT-d | - | - |
| VT-x | - | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium D 945 and Atom D425. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR2, DDR3 |
| Maximum memory size | no data | 4 GB |
| Max memory channels | no data | 1 |
| Maximum memory bandwidth | no data | 6.4 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | Intel GMA 3150 |
Pros & cons summary
| Recency | 23 July 2006 | 21 June 2010 |
| Physical cores | 2 | 1 |
| Chip lithography | 65 nm | 45 nm |
| Power consumption (TDP) | 95 Watt | 10 Watt |
Pentium D 945 has 100% more physical cores.
Atom D425, on the other hand, has an age advantage of 3 years, a 44.4% more advanced lithography process, and 850% lower power consumption.
We couldn't decide between Intel Pentium D 945 and Intel Atom D425. We've got no test results to judge.
Note that Pentium D 945 is a desktop processor while Atom D425 is a notebook one.
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