Xeon E7540 vs Core 2 Quad Q9550
Aggregate performance score
Xeon E7540 outperforms Core 2 Quad Q9550 by a whopping 341% based on our aggregate benchmark results.
Primary details
Comparing Core 2 Quad (Desktop) Q9550 and Xeon E7540 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2126 | 1022 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Series | Core 2 Quad (Desktop) | no data |
| Power efficiency | 1.48 | 5.88 |
| Architecture codename | Yorkfield (2007−2009) | no data |
| Release date | no data | 1 January 2010 (14 years ago) |
Detailed specifications
Core 2 Quad (Desktop) Q9550 and Xeon E7540 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 | 4 (Quad-Core) | 6 (Hexa-Core) |
| Threads | 4 | 12 |
| Base clock speed | no data | 2 GHz |
| Boost clock speed | 2.83 GHz | 2.27 GHz |
| Bus rate | 1333 MHz | no data |
| L2 cache | 12288 KB | no data |
| L3 cache | no data | 18 MB L3 Cache |
| Chip lithography | 45 nm | 45 nm |
| Maximum core temperature | no data | 64 °C |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core 2 Quad (Desktop) Q9550 and Xeon E7540 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 | LGA775 | FCLGA1567 |
| Power consumption (TDP) | 95 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad (Desktop) Q9550 and Xeon E7540. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 1.0 |
| Hyper-Threading Technology | no data | + |
| Status | no data | Discontinued |
Security technologies
Core 2 Quad (Desktop) Q9550 and Xeon E7540 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Quad (Desktop) Q9550 and Xeon E7540 are enumerated here.
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad (Desktop) Q9550 and Xeon E7540. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1,DDR2,DDR3 | no data |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Performance score | 1.54 | 6.79 |
| Physical cores | 4 | 6 |
| Threads | 4 | 12 |
| Power consumption (TDP) | 95 Watt | 105 Watt |
Core 2 Quad Q9550 has 10.5% lower power consumption.
Xeon E7540, on the other hand, has a 340.9% higher aggregate performance score, and 50% more physical cores and 200% more threads.
The Xeon E7540 is our recommended choice as it beats the Core 2 Quad Q9550 in performance tests.
Note that Core 2 Quad Q9550 is a desktop processor while Xeon E7540 is a server/workstation one.
Should you still have questions on choice between Core 2 Quad Q9550 and Xeon E7540, ask them in Comments section, and we shall answer.
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