Athlon 64 X2 4000+ vs Core 2 Quad Q9550
Aggregate performance score
Core 2 Quad Q9550 outperforms Athlon 64 X2 4000+ by a whopping 234% based on our aggregate benchmark results.
Primary details
Comparing Core 2 Quad (Desktop) Q9550 and Athlon 64 X2 4000+ processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2170 | 2962 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | Core 2 Quad (Desktop) | no data |
| Power efficiency | 1.46 | 0.47 |
| Architecture codename | Yorkfield (2007−2009) | Windsor (2006−2007) |
| Release date | no data | May 2006 (18 years ago) |
Detailed specifications
Core 2 Quad (Desktop) Q9550 and Athlon 64 X2 4000+ 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) | 2 (Dual-core) |
| Threads | 4 | 2 |
| Boost clock speed | 2.83 GHz | 2 GHz |
| Bus rate | 1333 MHz | no data |
| L1 cache | 64K (per core) | 256 KB |
| L2 cache | 12288 KB | 512K |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 45 nm | 90 nm |
| Die size | 2x 107 mm2 | 220 mm2 |
| Maximum case temperature (TCase) | 71 °C | no data |
| Number of transistors | 820 million | 154 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core 2 Quad (Desktop) Q9550 and Athlon 64 X2 4000+ 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 | AM2 |
| Power consumption (TDP) | 95 Watt | 89 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad (Desktop) Q9550 and Athlon 64 X2 4000+. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad (Desktop) Q9550 and Athlon 64 X2 4000+. 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.
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.
Pros & cons summary
| Performance score | 1.47 | 0.44 |
| Physical cores | 4 | 2 |
| Threads | 4 | 2 |
| Chip lithography | 45 nm | 90 nm |
| Power consumption (TDP) | 95 Watt | 89 Watt |
Core 2 Quad Q9550 has a 234.1% higher aggregate performance score, 100% more physical cores and 100% more threads, and a 100% more advanced lithography process.
Athlon 64 X2 4000+, on the other hand, has 6.7% lower power consumption.
The Core 2 Quad Q9550 is our recommended choice as it beats the Athlon 64 X2 4000+ in performance tests.
Should you still have questions on choice between Core 2 Quad Q9550 and Athlon 64 X2 4000+, ask them in Comments section, and we shall answer.
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