Phenom II X4 905e vs Core 2 Quad Q9550
Aggregate performance score
Core 2 Quad Q9550 outperforms Phenom II X4 905e by a significant 21% based on our aggregate benchmark results.
Primary details
Comparing Core 2 Quad (Desktop) Q9550 and Phenom II X4 905e processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2121 | 2288 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.06 |
| Market segment | Desktop processor | Desktop processor |
| Series | Core 2 Quad (Desktop) | 4x Phenom II (Desktop) |
| Architecture codename | Yorkfield (2007−2009) | Deneb (2009−2011) |
| Release date | no data | 2 June 2009 (15 years ago) |
| Launch price (MSRP) | no data | $212 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core 2 Quad (Desktop) Q9550 and Phenom II X4 905e 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) | 4 (Quad-Core) |
| Threads | 4 | 4 |
| Base clock speed | no data | 2.5 GHz |
| Boost clock speed | 2.83 GHz | 2.5 GHz |
| Bus rate | 1333 MHz | no data |
| L1 cache | no data | 128 KB (per core) |
| L2 cache | 12288 KB | 512 KB (per core) |
| L3 cache | no data | 6 MB (shared) |
| Chip lithography | 45 nm | 45 nm |
| Die size | no data | 258 mm2 |
| Number of transistors | no data | 758 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core 2 Quad (Desktop) Q9550 and Phenom II X4 905e 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 | LGA775 | AM3 |
| Power consumption (TDP) | 95 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad (Desktop) Q9550 and Phenom II X4 905e. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 45 nm, 1.25 |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Quad (Desktop) Q9550 and Phenom II X4 905e are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad (Desktop) Q9550 and Phenom II X4 905e. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1,DDR2,DDR3 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Core 2 Quad (Desktop) Q9550 and Phenom II X4 905e.
| PCIe version | no data | 2.0 |
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.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
Cinebench 11.5 64-bit multi-core
Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.
Pros & cons summary
| Performance score | 1.52 | 1.26 |
| Power consumption (TDP) | 95 Watt | 65 Watt |
Core 2 Quad Q9550 has a 20.6% higher aggregate performance score.
Phenom II X4 905e, on the other hand, has 46.2% lower power consumption.
The Core 2 Quad Q9550 is our recommended choice as it beats the Phenom II X4 905e in performance tests.
Should you still have questions on choice between Core 2 Quad Q9550 and Phenom II X4 905e, ask them in Comments section, and we shall answer.
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