Core 2 Quad Q9505S vs Xeon E5420
Primary details
Comparing Xeon E5420 and Core 2 Quad Q9505S processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2283 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Desktop processor |
| Power efficiency | 1.50 | no data |
| Release date | 1 October 2007 (17 years ago) | 1 July 2009 (15 years ago) |
Detailed specifications
Xeon E5420 and Core 2 Quad Q9505S 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 | 4 (Quad-Core) |
| Base clock speed | 2.5 GHz | 2.83 GHz |
| Bus rate | no data | 1333 MHz |
| L3 cache | 12 MB L2 Cache | 6 MB L2 Cache |
| Chip lithography | 45 nm | 45 nm |
| Maximum core temperature | 67 °C | 76 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.35V | 0.85V-1.3625V |
Compatibility
Information on Xeon E5420 and Core 2 Quad Q9505S 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.
| Socket | LGA771 | LGA775 |
| Power consumption (TDP) | 80 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5420 and Core 2 Quad Q9505S. 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 | + | - |
| FSB parity | + | no data |
Security technologies
Xeon E5420 and Core 2 Quad Q9505S technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5420 and Core 2 Quad Q9505S are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
| EPT | - | no data |
Pros & cons summary
| Recency | 1 October 2007 | 1 July 2009 |
| Power consumption (TDP) | 80 Watt | 65 Watt |
Core 2 Quad Q9505S has an age advantage of 1 year, and 23.1% lower power consumption.
We couldn't decide between Xeon E5420 and Core 2 Quad Q9505S. We've got no test results to judge.
Be aware that Xeon E5420 is a server/workstation processor while Core 2 Quad Q9505S is a desktop one.
Should you still have questions on choice between Xeon E5420 and Core 2 Quad Q9505S, ask them in Comments section, and we shall answer.
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