Athlon 1266 vs Ultra 5 245KF
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 261 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 83.70 | no data |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 21.12 | no data |
| Designer | Intel | AMD |
| Manufacturer | TSMC | no data |
| Architecture codename | Arrow Lake-S (2024−2025) | Thunderbird C (2000−2001) |
| Release date | 24 October 2024 (1 year ago) | 21 March 2001 (24 years ago) |
| Launch price (MSRP) | $294 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Core Ultra 5 245KF 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 | 14 (Tetradeca-Core) | 1 (Single-Core) |
| Performance-cores | 6 | no data |
| Efficient-cores | 8 | no data |
| Threads | 14 | 1 |
| Base clock speed | 4.2 GHz | no data |
| Boost clock speed | 5.2 GHz | 1.27 GHz |
| L1 cache | 192 KB (per core) | 128 KB |
| L2 cache | 3 MB (per core) | 256 KB |
| L3 cache | 24 MB (shared) | no data |
| Chip lithography | 3 nm | 180 nm |
| Die size | 243 mm2 | 120 mm2 |
| Number of transistors | 17,800 million | 37 million |
| 64 bit support | + | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core Ultra 5 245KF 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 | FCLGA1851 | A |
| Power consumption (TDP) | 125 Watt | 66 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 5 245KF and Athlon 1266. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | no data |
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Deep Learning Boost | + | - |
| Supported AI Software Frameworks | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN | - |
Security technologies
Core Ultra 5 245KF and Athlon 1266 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 5 245KF and Athlon 1266 are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 5 245KF and Athlon 1266. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-6400 | DDR1 Depends on motherboard |
| Maximum memory size | 256 GB | no data |
| Max memory channels | 2 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 5 245KF and Athlon 1266.
| PCIe version | 5.0 and 4.0 | no data |
| PCI Express lanes | 24 | no data |
Pros & cons summary
| Recency | 24 October 2024 | 21 March 2001 |
| Physical cores | 14 | 1 |
| Threads | 14 | 1 |
| Chip lithography | 3 nm | 180 nm |
| Power consumption (TDP) | 125 Watt | 66 Watt |
Ultra 5 245KF has an age advantage of 23 years, 1300% more physical cores and 1300% more threads, and a 5900% more advanced lithography process.
Athlon 1266, on the other hand, has 89.4% lower power consumption.
We couldn't decide between Intel Core Ultra 5 245KF and AMD Athlon 1266. We've got no test results to judge.
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