i9-14900KF vs Mobile Sempron SI-42
Aggregate performance score
Core i9-14900KF outperforms Mobile Sempron SI-42 by a whopping 17724% based on our aggregate benchmark results.
Primary details
Comparing Mobile Sempron SI-42 and Core i9-14900KF processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3218 | 83 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 66.59 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Mobile Sempron | no data |
| Power efficiency | 0.79 | 28.19 |
| Architecture codename | Sable (2008−2009) | Raptor Lake-R (2023−2024) |
| Release date | 1 September 2009 (15 years ago) | 17 October 2023 (1 year ago) |
| Launch price (MSRP) | no data | $564 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Mobile Sempron SI-42 and Core i9-14900KF 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) | 24 (Tetracosa-Core) |
| Threads | 1 | 32 |
| Base clock speed | no data | 3.2 GHz |
| Boost clock speed | 2.1 GHz | 5.8 GHz |
| Bus rate | 1800 MHz | no data |
| L1 cache | 128 KB | 80 KB (per core) |
| L2 cache | 512 KB | 2 MB (per core) |
| L3 cache | no data | 36 MB (shared) |
| Chip lithography | 65 nm | Intel 7 nm |
| Die size | no data | 257 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Mobile Sempron SI-42 and Core i9-14900KF 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 | FCLGA1700 |
| Power consumption (TDP) | 25 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron SI-42 and Core i9-14900KF. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 65 nm, 1.075 - 1.125 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
Mobile Sempron SI-42 and Core i9-14900KF technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Mobile Sempron SI-42 and Core i9-14900KF 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 Mobile Sempron SI-42 and Core i9-14900KF. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5-5600, DDR4-3200 |
| Maximum memory size | no data | 192 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 89.6 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Mobile Sempron SI-42 and Core i9-14900KF.
| PCIe version | no data | 5.0 and 4.0 |
| PCI Express lanes | no data | 16 |
Pros & cons summary
| Performance score | 0.21 | 37.43 |
| Recency | 1 September 2009 | 17 October 2023 |
| Physical cores | 1 | 24 |
| Threads | 1 | 32 |
| Power consumption (TDP) | 25 Watt | 125 Watt |
Mobile Sempron SI-42 has 400% lower power consumption.
i9-14900KF, on the other hand, has a 17723.8% higher aggregate performance score, an age advantage of 14 years, and 2300% more physical cores and 3100% more threads.
The Core i9-14900KF is our recommended choice as it beats the Mobile Sempron SI-42 in performance tests.
Be aware that Mobile Sempron SI-42 is a notebook processor while Core i9-14900KF is a desktop one.
Should you still have questions on choice between Mobile Sempron SI-42 and Core i9-14900KF, ask them in Comments section, and we shall answer.
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