i5-650 vs Pentium D 945
Primary details
Comparing Pentium D 945 and Core i5-650 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 2192 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 4.93 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | no data | 1.84 |
| Architecture codename | Presler (2005−2007) | Clarkdale (2010−2011) |
| Release date | 23 July 2006 (18 years ago) | 7 January 2010 (14 years ago) |
| Launch price (MSRP) | $163 | $35 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium D 945 and Core i5-650 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 | 3.2 GHz |
| Boost clock speed | 3.4 GHz | 3.46 GHz |
| Bus rate | no data | 2.5 GT/s |
| L1 cache | 16 KB (per core) | 64 KB (per core) |
| L2 cache | 2 MB (per die) | 256 KB (per core) |
| L3 cache | 0 KB | 4 MB (shared) |
| Chip lithography | 65 nm | 32 nm |
| Die size | 2x 81 mm2 | 81 mm2 |
| Maximum core temperature | no data | 73 °C |
| Maximum case temperature (TCase) | 63 °C | no data |
| Number of transistors | 376 million | 382 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.2V-1.3375V | no data |
Compatibility
Information on Pentium D 945 and Core i5-650 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 | FCLGA1156 |
| Power consumption (TDP) | 95 Watt | 73 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium D 945 and Core i5-650. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.2 |
| AES-NI | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | 1.0 |
| Hyper-Threading Technology | - | + |
| Idle States | + | + |
| Demand Based Switching | - | - |
| PAE | 32 Bit | 36 Bit |
| FDI | no data | + |
| FSB parity | - | no data |
Security technologies
Pentium D 945 and Core i5-650 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 Core i5-650 are enumerated here.
| VT-d | - | + |
| VT-x | - | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium D 945 and Core i5-650. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR3 |
| Maximum memory size | no data | 16.38 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 21 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | Intel® HD Graphics for Previous Generation Intel® Processors |
| Clear Video HD | no data | + |
Graphics interfaces
Available interfaces and connections of Pentium D 945 and Core i5-650 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Pentium D 945 and Core i5-650.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 16 |
Pros & cons summary
| Recency | 23 July 2006 | 7 January 2010 |
| Threads | 2 | 4 |
| Chip lithography | 65 nm | 32 nm |
| Power consumption (TDP) | 95 Watt | 73 Watt |
i5-650 has an age advantage of 3 years, 100% more threads, a 103.1% more advanced lithography process, and 30.1% lower power consumption.
We couldn't decide between Pentium D 945 and Core i5-650. We've got no test results to judge.
Should you still have questions on choice between Pentium D 945 and Core i5-650, ask them in Comments section, and we shall answer.
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