K6-2/400AFQ-66 vs Core 2 Quad Q9550
Primary details
Comparing Core 2 Quad (Desktop) Q9550 and K6-2/400AFQ-66 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2192 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | Core 2 Quad (Desktop) | AMD K6-2 |
| Power efficiency | 1.46 | no data |
| Architecture codename | Yorkfield (2007−2009) | K6-2 (1998−1999) |
| Release date | no data | 28 May 1998 (26 years ago) |
Detailed specifications
Core 2 Quad (Desktop) Q9550 and K6-2/400AFQ-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 | 1 |
| Boost clock speed | 2.83 GHz | 0.1 GHz |
| Bus type | no data | FSB |
| Bus rate | 1333 MHz | 66.66 MT/s |
| Multiplier | no data | 6 |
| L1 cache | 64K (per core) | no data |
| L2 cache | 12288 KB | no data |
| L3 cache | 0 KB | no data |
| Chip lithography | 45 nm | 0.25 µm |
| Die size | 2x 107 mm2 | 81 mm2 |
| Maximum case temperature (TCase) | 71 °C | no data |
| Number of transistors | 820 million | 9 Million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Core 2 Quad (Desktop) Q9550 and K6-2/400AFQ-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 | 1 | no data |
| Socket | LGA775 | no data |
| Power consumption (TDP) | 95 Watt | no data |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad (Desktop) Q9550 and K6-2/400AFQ-66. 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 K6-2/400AFQ-66. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1,DDR2,DDR3 | no data |
| Maximum memory size | no data | 4 GB |
Pros & cons summary
| Physical cores | 4 | 1 |
| Threads | 4 | 1 |
Core 2 Quad Q9550 has 300% more physical cores and 300% more threads.
We couldn't decide between Core 2 Quad Q9550 and K6-2/400AFQ-66. We've got no test results to judge.
Should you still have questions on choice between Core 2 Quad Q9550 and K6-2/400AFQ-66, ask them in Comments section, and we shall answer.
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