Sempron 145 vs A4-4020
Primary details
Comparing A4-4020 and Sempron 145 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2599 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 1.16 | no data |
| Architecture codename | Richland (2013−2014) | Sargas (2009−2011) |
| Release date | January 2014 (10 years ago) | 1 September 2010 (14 years ago) |
| Launch price (MSRP) | no data | $95 |
Detailed specifications
A4-4020 and Sempron 145 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 | 1 |
| Base clock speed | 3.2 GHz | 2.8 GHz |
| Boost clock speed | 3.4 GHz | 2.8 GHz |
| L1 cache | 96K | 128 KB (per core) |
| L2 cache | 1 MB (shared) | 1 MB (per core) |
| L3 cache | no data | 0 KB |
| Chip lithography | 32 nm | 45 nm |
| Die size | 246 mm2 | 117 mm2 |
| Maximum case temperature (TCase) | 70 °C | no data |
| Number of transistors | 1,303 million | 234 million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
Compatibility
Information on A4-4020 and Sempron 145 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 | AM3 |
| Power consumption (TDP) | 65 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A4-4020 and Sempron 145. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
| PowerNow | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by A4-4020 and Sempron 145 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A4-4020 and Sempron 145. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1333 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 7480D | no data |
Peripherals
Specifications and connection of peripherals supported by A4-4020 and Sempron 145.
| PCIe version | 2.0 | 2.0 |
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.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Physical cores | 2 | 1 |
| Threads | 2 | 1 |
| Chip lithography | 32 nm | 45 nm |
| Power consumption (TDP) | 65 Watt | 45 Watt |
A4-4020 has 100% more physical cores and 100% more threads, and a 40.6% more advanced lithography process.
Sempron 145, on the other hand, has 44.4% lower power consumption.
We couldn't decide between A4-4020 and Sempron 145. We've got no test results to judge.
Should you still have questions on choice between A4-4020 and Sempron 145, ask them in Comments section, and we shall answer.
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