Pentium 4 2.66 vs A8-5600K
Primary details
Comparing A8-5600K and Pentium 4 2.66 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2005 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | AMD A-Series (Desktop) | no data |
| Power efficiency | 1.71 | no data |
| Architecture codename | Trinity (2012−2013) | Northwood (2002−2004) |
| Release date | 2 October 2012 (12 years ago) | August 2002 (22 years ago) |
Detailed specifications
A8-5600K and 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 | 1 |
| Base clock speed | 3.6 GHz | no data |
| Boost clock speed | 3.9 GHz | 2.66 GHz |
| L1 cache | 128K (per core) | 8 KB |
| L2 cache | 1 MB (per core) | 512 KB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 32 nm | 130 nm |
| Die size | 246 mm2 | 146 mm2 |
| Maximum case temperature (TCase) | 74 °C | no data |
| Number of transistors | 1,178 million | 55 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on A8-5600K and 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 | 1 | 1 |
| Socket | FM2 | 478 |
| Power consumption (TDP) | 100 Watt | 110 Watt |
Virtualization technologies
Virtual machine speed-up technologies supported by A8-5600K and Pentium 4 2.66 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A8-5600K and Pentium 4 2.66. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR1, DDR2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 7560D | 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.
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.
Pros & cons summary
| Physical cores | 4 | 1 |
| Threads | 4 | 1 |
| Chip lithography | 32 nm | 130 nm |
| Power consumption (TDP) | 100 Watt | 110 Watt |
A8-5600K has 300% more physical cores and 300% more threads, a 306.3% more advanced lithography process, and 10% lower power consumption.
We couldn't decide between A8-5600K and Pentium 4 2.66. We've got no test results to judge.
Should you still have questions on choice between A8-5600K and Pentium 4 2.66, ask them in Comments section, and we shall answer.
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