Athlon 1266 vs Pentium 4 1.9
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Designer | Intel | AMD |
| Architecture codename | Willamette (2000−2001) | Thunderbird C (2000−2001) |
| Release date | August 2001 (24 years ago) | 21 March 2001 (24 years ago) |
Detailed specifications
Pentium 4 1.9 and Athlon 1266 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 | 1 (Single-Core) | 1 (Single-Core) |
| Threads | 1 | 1 |
| Boost clock speed | 1.9 GHz | 1.27 GHz |
| L1 cache | 8 KB | 128 KB |
| L2 cache | 256 KB | 256 KB |
| L3 cache | 0 KB | no data |
| Chip lithography | 180 nm | 180 nm |
| Die size | 217 mm2 | 120 mm2 |
| Maximum case temperature (TCase) | 73 °C | no data |
| Number of transistors | 42 million | 37 million |
| 64 bit support | - | - |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Pentium 4 1.9 and Athlon 1266 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 | 423 | A |
| Power consumption (TDP) | 69 Watt | 66 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium 4 1.9 and Athlon 1266. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2 | DDR1 Depends on motherboard |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
