Athlon 64 X2 5400+ vs Mobile Sempron SI-40
Primary details
Comparing Mobile Sempron SI-40 and Athlon 64 X2 5400+ processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 2814 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Mobile Sempron | no data |
| Power efficiency | no data | 0.61 |
| Architecture codename | Sable (2008−2009) | Windsor (2006−2007) |
| Release date | 4 July 2008 (16 years ago) | December 2006 (17 years ago) |
Detailed specifications
Mobile Sempron SI-40 and Athlon 64 X2 5400+ 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) | 2 (Dual-core) |
| Threads | 1 | 2 |
| Boost clock speed | 2 GHz | 2.8 GHz |
| Bus rate | 1800 MHz | no data |
| L1 cache | no data | 256 KB |
| L2 cache | 512 KB | 512 KB |
| L3 cache | no data | 0 KB |
| Chip lithography | 65 nm | 90 nm |
| Die size | no data | 220 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 154 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Mobile Sempron SI-40 and Athlon 64 X2 5400+ 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 | no data | 1 |
| Socket | S1g2 | AM2 |
| Power consumption (TDP) | 25 Watt | 89 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron SI-40 and Athlon 64 X2 5400+. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 65 nm, 1.075 - 1.125V | no data |
Pros & cons summary
| Physical cores | 1 | 2 |
| Threads | 1 | 2 |
| Chip lithography | 65 nm | 90 nm |
| Power consumption (TDP) | 25 Watt | 89 Watt |
Mobile Sempron SI-40 has a 38.5% more advanced lithography process, and 256% lower power consumption.
Athlon 64 X2 5400+, on the other hand, has 100% more physical cores and 100% more threads.
We couldn't decide between Mobile Sempron SI-40 and Athlon 64 X2 5400+. We've got no test results to judge.
Be aware that Mobile Sempron SI-40 is a notebook processor while Athlon 64 X2 5400+ is a desktop one.
Should you still have questions on choice between Mobile Sempron SI-40 and Athlon 64 X2 5400+, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
