Pentium 3825U vs Pentium D 945
Primary details
Comparing Pentium D 945 and Pentium 3825U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 2545 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Pentium |
| Power efficiency | no data | 5.55 |
| Architecture codename | Presler (2005−2007) | Broadwell-U (2015) |
| Release date | 23 July 2006 (18 years ago) | 1 March 2015 (9 years ago) |
| Launch price (MSRP) | $163 | $161 |
Detailed specifications
Pentium D 945 and Pentium 3825U 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) | 2 (Dual-core) |
| Threads | 2 | 4 |
| Base clock speed | 3.4 GHz | 1.9 GHz |
| Boost clock speed | 3.4 GHz | 1.9 GHz |
| Bus rate | no data | 5 GT/s |
| L1 cache | 16 KB (per core) | 64K (per core) |
| L2 cache | 2 MB (per die) | 256K (per core) |
| L3 cache | 0 KB | 2 MB (shared) |
| Chip lithography | 65 nm | 14 nm |
| Die size | 2x 81 mm2 | 82 mm2 |
| Maximum core temperature | no data | 105 °C |
| Maximum case temperature (TCase) | 63 °C | 105 °C |
| Number of transistors | 376 million | 1300 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.2V-1.3375V | no data |
Compatibility
Information on Pentium D 945 and Pentium 3825U 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 | FCBGA1168 |
| Power consumption (TDP) | 95 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 945 and Pentium 3825U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | + |
| Idle States | + | no data |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Smart Response | no data | - |
| Demand Based Switching | - | no data |
| PAE | 32 Bit | no data |
| FDI | no data | + |
| Fast Memory Access | no data | + |
| FSB parity | - | no data |
Security technologies
Pentium D 945 and Pentium 3825U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
| Secure Key | no data | + |
| Identity Protection | - | + |
| OS Guard | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium D 945 and Pentium 3825U are enumerated here.
| AMD-V | - | + |
| VT-d | - | + |
| VT-x | - | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium D 945 and Pentium 3825U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR3 |
| Maximum memory size | no data | 16 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 25.6 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | Intel® HD Graphics for 5th Generation Intel® Processors |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Graphics max frequency | no data | 850 MHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Pentium D 945 and Pentium 3825U integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
Graphics API support
APIs supported by Pentium D 945 and Pentium 3825U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 11.2/12 |
Peripherals
Specifications and connection of peripherals supported by Pentium D 945 and Pentium 3825U.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 12 |
Pros & cons summary
| Recency | 23 July 2006 | 1 March 2015 |
| Threads | 2 | 4 |
| Chip lithography | 65 nm | 14 nm |
| Power consumption (TDP) | 95 Watt | 15 Watt |
Pentium 3825U has an age advantage of 8 years, 100% more threads, a 364.3% more advanced lithography process, and 533.3% lower power consumption.
We couldn't decide between Pentium D 945 and Pentium 3825U. We've got no test results to judge.
Note that Pentium D 945 is a desktop processor while Pentium 3825U is a notebook one.
Should you still have questions on choice between Pentium D 945 and Pentium 3825U, ask them in Comments section, and we shall answer.
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