Atom Z540 vs Mobile Sempron 2800+
Primary details
Comparing Mobile Sempron 2800+ and Atom Z540 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Mobile Sempron | Intel Atom |
| Architecture codename | Georgetown | Silverthorne (2008−2010) |
| Release date | no data | 2 April 2008 (16 years ago) |
| Launch price (MSRP) | no data | $160 |
| Current price | $12.47 | $250 (1.6x MSRP) |
Detailed specifications
Mobile Sempron 2800+ and Atom Z540 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 | no data | 1.86 GHz |
| Boost clock speed | 1.6 GHz | 0.07 GHz |
| Bus support | 800 MHz | 533.33 MT/s |
| L1 cache | no data | 56 KB |
| L2 cache | no data | 512 KB |
| L3 cache | no data | 0 KB |
| Chip lithography | no data | 45 nm |
| Die size | no data | 24.18 mm27.8 mm × 3.1 mm |
| Maximum core temperature | no data | 90 °C |
| Number of transistors | no data | 47 Million |
| 64 bit support | - | - |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
| VID voltage range | no data | 0.75 -1.1V |
Compatibility
Information on Mobile Sempron 2800+ and Atom Z540 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 (Uniprocessor) |
| Socket | no data | PBGA441 |
| Power consumption (TDP) | 62 Watt | 2.4 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron 2800+ and Atom Z540. 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 | no data | + |
| Demand Based Switching | no data | + |
| FSB parity | no data | - |
| Status | no data | Discontinued |
Security technologies
Mobile Sempron 2800+ and Atom Z540 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 Mobile Sempron 2800+ and Atom Z540 are enumerated here.
| VT-d | no data | - |
| VT-x | 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.
Benchmark coverage: 68%
Atom Z540 outperforms Mobile Sempron 2800+ by 47% in Passmark.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Benchmark coverage: 18%
Mobile Sempron 2800+ outperforms Atom Z540 by 2% in wPrime 32.
Pros & cons summary
| Threads | 1 | 2 |
| Power consumption (TDP) | 62 Watt | 2 Watt |
We couldn't decide between Mobile Sempron 2800+ and Atom Z540. We've got no test results to judge.
Should you still have questions on choice between Mobile Sempron 2800+ and Atom Z540, ask them in Comments section, and we shall answer.
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