Mobile Sempron SI-42 vs Celeron 3955U
Primary details
Comparing Celeron 3955U and Mobile Sempron SI-42 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2505 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Celeron | AMD Mobile Sempron |
| Power efficiency | 5.90 | no data |
| Architecture codename | Skylake (2015−2016) | Sable (2008−2009) |
| Release date | 15 August 2015 (9 years ago) | 1 September 2009 (15 years ago) |
| Launch price (MSRP) | $107 | no data |
Detailed specifications
Celeron 3955U and Mobile Sempron SI-42 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 | 2 (Dual-core) | 1 (Single-Core) |
| Threads | 2 | 1 |
| Base clock speed | 2 GHz | no data |
| Boost clock speed | 2 GHz | 2.1 GHz |
| Bus type | OPI | no data |
| Bus rate | 4 GT/s | 1800 MHz |
| Multiplier | 20 | no data |
| L1 cache | 128 KB | 128 KB |
| L2 cache | 512 KB | 512 KB |
| L3 cache | 2 MB | no data |
| Chip lithography | 14 nm | 65 nm |
| Die size | 98.57 mm2 | no data |
| Maximum core temperature | 100 °C | 100 °C |
| Number of transistors | 1750 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Celeron 3955U and Mobile Sempron SI-42 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 (Uniprocessor) | no data |
| Socket | FCBGA1356 | S1g2 |
| Power consumption (TDP) | 15 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron 3955U and Mobile Sempron SI-42. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | 65 nm, 1.075 - 1.125 |
| AES-NI | + | - |
| Enhanced SpeedStep (EIST) | + | no data |
| My WiFi | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| Smart Response | + | no data |
Security technologies
Celeron 3955U and Mobile Sempron SI-42 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| Identity Protection | + | - |
| SGX | Yes with Intel® ME | no data |
| OS Guard | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron 3955U and Mobile Sempron SI-42 are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron 3955U and Mobile Sempron SI-42. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-1866/2133, LPDDR3-1600/1866, DDR3L-1333/1600 | no data |
| Maximum memory size | 32 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 34.134 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 510 | no data |
| Max video memory | 32 GB | no data |
| Quick Sync Video | + | - |
| Clear Video HD | + | no data |
| Graphics max frequency | 900 MHz | no data |
Graphics interfaces
Available interfaces and connections of Celeron 3955U and Mobile Sempron SI-42 integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| DVI | + | no data |
Graphics image quality
Maximum display resolutions supported by Celeron 3955U and Mobile Sempron SI-42 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096x2304@24Hz | no data |
| Max resolution over eDP | 4096x2304@60Hz | no data |
| Max resolution over DisplayPort | 4096x2304@60Hz | no data |
| Max resolution over VGA | N/A | no data |
Graphics API support
APIs supported by Celeron 3955U and Mobile Sempron SI-42 integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.4 | no data |
Peripherals
Specifications and connection of peripherals supported by Celeron 3955U and Mobile Sempron SI-42.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 12 | no data |
Pros & cons summary
| Recency | 15 August 2015 | 1 September 2009 |
| Physical cores | 2 | 1 |
| Threads | 2 | 1 |
| Chip lithography | 14 nm | 65 nm |
| Power consumption (TDP) | 15 Watt | 25 Watt |
Celeron 3955U has an age advantage of 5 years, 100% more physical cores and 100% more threads, a 364.3% more advanced lithography process, and 66.7% lower power consumption.
We couldn't decide between Celeron 3955U and Mobile Sempron SI-42. We've got no test results to judge.
Should you still have questions on choice between Celeron 3955U and Mobile Sempron SI-42, ask them in Comments section, and we shall answer.
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