Atom Z520 vs Sempron 145
Primary details
Comparing Sempron 145 and Atom Z520 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 | Desktop processor | Laptop |
| Series | no data | Intel Atom |
| Architecture codename | Sargas (2009−2011) | Silverthorne (2008−2010) |
| Release date | 1 September 2010 (14 years ago) | 2 April 2008 (16 years ago) |
| Launch price (MSRP) | $95 | $65 |
Detailed specifications
Sempron 145 and Atom Z520 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 | 1 (Single-Core) | 1 (Single-Core) |
| Threads | 1 | 2 |
| Base clock speed | 2.8 GHz | 1.33 GHz |
| Boost clock speed | 2.8 GHz | 0.03 GHz |
| Bus type | no data | FSB |
| Bus rate | no data | 533.33 MT/s |
| Multiplier | no data | 10 |
| L1 cache | 128 KB (per core) | 56 KB |
| L2 cache | 1 MB (per core) | 512 KB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 45 nm | 45 nm |
| Die size | 117 mm2 | 24.18 mm2 |
| Maximum core temperature | no data | 90 °C |
| Number of transistors | 234 million | 47 Million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.75-1.1V |
Compatibility
Information on Sempron 145 and Atom Z520 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 (Uniprocessor) |
| Socket | AM3 | PBGA441 |
| Power consumption (TDP) | 45 Watt | 2 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Sempron 145 and Atom Z520. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | + |
| FSB parity | no data | - |
Security technologies
Sempron 145 and Atom Z520 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Sempron 145 and Atom Z520 are enumerated here.
| VT-d | no data | - |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Sempron 145 and Atom Z520. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | no data |
Peripherals
Specifications and connection of peripherals supported by Sempron 145 and Atom Z520.
| PCIe version | 2.0 | 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
| Recency | 1 September 2010 | 2 April 2008 |
| Threads | 1 | 2 |
| Power consumption (TDP) | 45 Watt | 2 Watt |
Sempron 145 has an age advantage of 2 years.
Atom Z520, on the other hand, has 100% more threads, and 2150% lower power consumption.
We couldn't decide between Sempron 145 and Atom Z520. We've got no test results to judge.
Note that Sempron 145 is a desktop processor while Atom Z520 is a notebook one.
Should you still have questions on choice between Sempron 145 and Atom Z520, ask them in Comments section, and we shall answer.
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