Pentium D 945 vs Xeon E5405
Primary details
Comparing Xeon E5405 and Pentium D 945 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2405 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Desktop processor |
| Power efficiency | 1.28 | no data |
| Architecture codename | no data | Presler (2005−2007) |
| Release date | 1 October 2007 (17 years ago) | 23 July 2006 (18 years ago) |
| Launch price (MSRP) | no data | $163 |
Detailed specifications
Xeon E5405 and Pentium D 945 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 | no data | 2 (Dual-core) |
| Threads | no data | 2 |
| Base clock speed | 2 GHz | 3.4 GHz |
| Boost clock speed | no data | 3.4 GHz |
| L1 cache | no data | 16 KB (per core) |
| L2 cache | no data | 2 MB (per die) |
| L3 cache | 12 MB L2 Cache | 0 KB |
| Chip lithography | 45 nm | 65 nm |
| Die size | no data | 2x 81 mm2 |
| Maximum core temperature | 67 °C | no data |
| Maximum case temperature (TCase) | no data | 63 °C |
| Number of transistors | no data | 376 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.35V | 1.2V-1.3375V |
Compatibility
Information on Xeon E5405 and Pentium D 945 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 | no data | 1 |
| Socket | LGA771 | LGA775,PLGA775 |
| Power consumption (TDP) | 80 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5405 and Pentium D 945. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | - | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | - |
| Idle States | - | + |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | - |
| PAE | no data | 32 Bit |
| FSB parity | + | - |
Security technologies
Xeon E5405 and Pentium D 945 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5405 and Pentium D 945 are enumerated here.
| VT-d | no data | - |
| VT-x | + | - |
| EPT | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5405 and Pentium D 945. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR1, DDR2, DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Pros & cons summary
| Recency | 1 October 2007 | 23 July 2006 |
| Chip lithography | 45 nm | 65 nm |
| Power consumption (TDP) | 80 Watt | 95 Watt |
Xeon E5405 has an age advantage of 1 year, a 44.4% more advanced lithography process, and 18.8% lower power consumption.
We couldn't decide between Xeon E5405 and Pentium D 945. We've got no test results to judge.
Be aware that Xeon E5405 is a server/workstation processor while Pentium D 945 is a desktop one.
Should you still have questions on choice between Xeon E5405 and Pentium D 945, ask them in Comments section, and we shall answer.
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