Atom E645C vs A4-5145M
Primary details
Comparing A4-5145M and Atom E645C 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 | Laptop | Laptop |
| Series | AMD A-Series | no data |
| Architecture codename | Richland (2013−2014) | Stellarton (2010) |
| Release date | 1 June 2013 (11 years ago) | 22 November 2010 (14 years ago) |
Detailed specifications
A4-5145M and Atom E645C 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) | 1 (Single-Core) |
| Threads | 2 | 2 |
| Base clock speed | 2 GHz | no data |
| Boost clock speed | 2.6 GHz | 1 GHz |
| L1 cache | 128 KB (per core) | 64 KB (per core) |
| L2 cache | 512K (per core) | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 32 nm | 45 nm |
| Die size | 246 mm2 | 26 mm2 |
| Maximum case temperature (TCase) | 71 °C | no data |
| Number of transistors | 1,178 million | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on A4-5145M and Atom E645C 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 | Intel BGA1466 |
| Power consumption (TDP) | 17 Watt | 4 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A4-5145M and Atom E645C. 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 | + |
| Hyper-Threading Technology | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A4-5145M and Atom E645C are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A4-5145M and Atom E645C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | AMD Radeon HD 8310G | Intel GMA 600 |
Pros & cons summary
| Recency | 1 June 2013 | 22 November 2010 |
| Physical cores | 2 | 1 |
| Chip lithography | 32 nm | 45 nm |
| Power consumption (TDP) | 17 Watt | 4 Watt |
A4-5145M has an age advantage of 2 years, 100% more physical cores, and a 40.6% more advanced lithography process.
Atom E645C, on the other hand, has 325% lower power consumption.
We couldn't decide between A4-5145M and Atom E645C. We've got no test results to judge.
Should you still have questions on choice between A4-5145M and Atom E645C, ask them in Comments section, and we shall answer.
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