Atom E645C vs Sempron 145
Primary details
Comparing Sempron 145 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 | Desktop processor | Laptop |
| Architecture codename | Sargas (2009−2011) | Stellarton (2010) |
| Release date | 1 September 2010 (14 years ago) | 22 November 2010 (14 years ago) |
| Launch price (MSRP) | $95 | no data |
Detailed specifications
Sempron 145 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 | 1 (Single-Core) | 1 (Single-Core) |
| Threads | 1 | 2 |
| Base clock speed | 2.8 GHz | no data |
| Boost clock speed | 2.8 GHz | 1 GHz |
| L1 cache | 128 KB (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 45 nm | 45 nm |
| Die size | 117 mm2 | 26 mm2 |
| Number of transistors | 234 million | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Sempron 145 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 | AM3 | Intel BGA1466 |
| Power consumption (TDP) | 45 Watt | 4 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Sempron 145 and Atom E645C. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | no data | + |
| Hyper-Threading Technology | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Sempron 145 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 | no data | Intel GMA 600 |
Peripherals
Specifications and connection of peripherals supported by Sempron 145 and Atom E645C.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 1 September 2010 | 22 November 2010 |
| Threads | 1 | 2 |
| Power consumption (TDP) | 45 Watt | 4 Watt |
Atom E645C has an age advantage of 2 months, 100% more threads, and 1025% lower power consumption.
We couldn't decide between Sempron 145 and Atom E645C. We've got no test results to judge.
Note that Sempron 145 is a desktop processor while Atom E645C is a notebook one.
Should you still have questions on choice between Sempron 145 and Atom E645C, ask them in Comments section, and we shall answer.
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