Mobile Pentium 4 2.66 vs Core 2 Quad Q9550
Primary details
Comparing Core 2 Quad Q9550 and Mobile Pentium 4 2.66 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2051 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.80 | no data |
| Market segment | Desktop processor | Laptop |
| Series | Core 2 Quad (Desktop) | no data |
| Architecture codename | Yorkfield (2007−2009) | Northwood (2001−2004) |
| Release date | no data | June 2003 (21 year ago) |
| Current price | $54 | $44 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core 2 Quad Q9550 and Mobile Pentium 4 2.66 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) | 1 (Single-Core) |
| Threads | 4 | 2 |
| Boost clock speed | 2.83 GHz | 2.67 GHz |
| Bus support | 1333 MHz | no data |
| L1 cache | no data | 8 KB |
| L2 cache | 12288 KB | 512 KB |
| L3 cache | no data | 0 KB |
| Chip lithography | 45 nm | 130 nm |
| Die size | no data | 131 mm2 |
| Maximum case temperature (TCase) | no data | 74 °C |
| Number of transistors | no data | 55 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core 2 Quad Q9550 and Mobile Pentium 4 2.66 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 | 478 |
| Power consumption (TDP) | 95 Watt | 66 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad Q9550 and Mobile Pentium 4 2.66. You'll probably need this information if you require some particular technology.
| Hyper-Threading Technology | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9550 and Mobile Pentium 4 2.66. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1,DDR2,DDR3 | DDR1, DDR2 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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.
Benchmark coverage: 68%
Core 2 Quad Q9550 outperforms Mobile Pentium 4 2.66 by 1186% in Passmark.
Pros & cons summary
| Physical cores | 4 | 1 |
| Threads | 4 | 2 |
| Chip lithography | 45 nm | 130 nm |
| Power consumption (TDP) | 95 Watt | 66 Watt |
We couldn't decide between Core 2 Quad Q9550 and Mobile Pentium 4 2.66. We've got no test results to judge.
Note that Core 2 Quad Q9550 is a desktop processor while Mobile Pentium 4 2.66 is a notebook one.
Should you still have questions on choice between Core 2 Quad Q9550 and Mobile Pentium 4 2.66, ask them in Comments section, and we shall answer.
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