Ultra 5 245KF vs A4-5145M
Primary details
Comparing A4-5145M and Core Ultra 5 245KF processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 177 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 82.02 |
| Market segment | Laptop | Desktop processor |
| Series | AMD A-Series | no data |
| Power efficiency | no data | 20.87 |
| Architecture codename | Richland (2013−2014) | Arrow Lake-S (2024−2025) |
| Release date | 1 June 2013 (11 years ago) | 24 October 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $294 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
A4-5145M and Core Ultra 5 245KF 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 | 2 (Dual-core) | 14 (Tetradeca-Core) |
| Threads | 2 | 14 |
| Base clock speed | 2 GHz | 4.2 GHz |
| Boost clock speed | 2.6 GHz | 5.2 GHz |
| L1 cache | 128 KB (per core) | 112 KB (per core) |
| L2 cache | 512K (per core) | 3 MB (per core) |
| L3 cache | 0 KB | 24 MB (shared) |
| Chip lithography | 32 nm | 3 nm |
| Die size | 246 mm2 | 243 mm2 |
| Maximum case temperature (TCase) | 71 °C | no data |
| Number of transistors | 1,178 million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on A4-5145M and Core Ultra 5 245KF 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 | FP2 | 1851 |
| Power consumption (TDP) | 17 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A4-5145M and Core Ultra 5 245KF. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA | no data |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| TSX | - | + |
Security technologies
A4-5145M and Core Ultra 5 245KF technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A4-5145M and Core Ultra 5 245KF are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A4-5145M and Core Ultra 5 245KF. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 8310G (424 - 554 MHz) | N/A |
Peripherals
Specifications and connection of peripherals supported by A4-5145M and Core Ultra 5 245KF.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 1 June 2013 | 24 October 2024 |
| Physical cores | 2 | 14 |
| Threads | 2 | 14 |
| Chip lithography | 32 nm | 3 nm |
| Power consumption (TDP) | 17 Watt | 125 Watt |
A4-5145M has 635.3% lower power consumption.
Ultra 5 245KF, on the other hand, has an age advantage of 11 years, 600% more physical cores and 600% more threads, and a 966.7% more advanced lithography process.
We couldn't decide between A4-5145M and Core Ultra 5 245KF. We've got no test results to judge.
Be aware that A4-5145M is a notebook processor while Core Ultra 5 245KF is a desktop one.
Should you still have questions on choice between A4-5145M and Core Ultra 5 245KF, ask them in Comments section, and we shall answer.
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