Celeron N2840 vs Mobile Sempron SI-40
Aggregate performance score
Celeron N2840 outperforms Mobile Sempron SI-40 by an impressive 85% based on our aggregate benchmark results.
Primary details
Comparing Mobile Sempron SI-40 and Celeron N2840 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3239 | 3040 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Mobile Sempron | Intel Celeron |
| Power efficiency | 0.76 | 5.00 |
| Architecture codename | Sable (2008−2009) | Bay Trail-M (2013−2014) |
| Release date | 4 July 2008 (16 years ago) | 22 May 2014 (10 years ago) |
Detailed specifications
Mobile Sempron SI-40 and Celeron N2840 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 |
| Base clock speed | no data | 2.16 GHz |
| Boost clock speed | 2 GHz | 2.58 GHz |
| Bus rate | 1800 MHz | no data |
| L1 cache | no data | 56K (per core) |
| L2 cache | 512 KB | 512K (per core) |
| L3 cache | no data | 0 KB |
| Chip lithography | 65 nm | 22 nm |
| Maximum core temperature | 100 °C | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Mobile Sempron SI-40 and Celeron N2840 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 | FCBGA1170 |
| Power consumption (TDP) | 25 Watt | 7.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron SI-40 and Celeron N2840. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 65 nm, 1.075 - 1.125V | no data |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Smart Connect | no data | + |
Security technologies
Mobile Sempron SI-40 and Celeron N2840 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | no data | + |
| Secure Key | no data | + |
| Anti-Theft | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Mobile Sempron SI-40 and Celeron N2840 are enumerated here.
| VT-d | no data | - |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Mobile Sempron SI-40 and Celeron N2840. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR3 |
| Maximum memory size | no data | 8 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 21.32 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel HD Graphics for Intel Atom Processor Z3700 Series |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 792 MHz |
Graphics interfaces
Available interfaces and connections of Mobile Sempron SI-40 and Celeron N2840 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Mobile Sempron SI-40 and Celeron N2840.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 4 |
| USB revision | no data | 3.0 and 2.0 |
| Total number of SATA ports | no data | 2 |
| Number of USB ports | no data | 5 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
Pros & cons summary
| Performance score | 0.20 | 0.37 |
| Recency | 4 July 2008 | 22 May 2014 |
| Physical cores | 1 | 2 |
| Threads | 1 | 2 |
| Chip lithography | 65 nm | 22 nm |
| Power consumption (TDP) | 25 Watt | 7 Watt |
Celeron N2840 has a 85% higher aggregate performance score, an age advantage of 5 years, 100% more physical cores and 100% more threads, a 195.5% more advanced lithography process, and 257.1% lower power consumption.
The Celeron N2840 is our recommended choice as it beats the Mobile Sempron SI-40 in performance tests.
Should you still have questions on choice between Mobile Sempron SI-40 and Celeron N2840, ask them in Comments section, and we shall answer.
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