Ryzen 9 7950X3D vs Mobile Sempron SI-40
Aggregate performance score
Ryzen 9 7950X3D outperforms Mobile Sempron SI-40 by a whopping 19405% based on our aggregate benchmark results.
Primary details
Comparing Mobile Sempron SI-40 and Ryzen 9 7950X3D processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3278 | 73 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 57.35 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Mobile Sempron | AMD Ryzen 9 |
| Power efficiency | 0.76 | 30.94 |
| Architecture codename | Sable (2008−2009) | Raphael (Zen4) (2022−2023) |
| Release date | 4 July 2008 (16 years ago) | 4 January 2023 (2 years ago) |
| Launch price (MSRP) | no data | $699 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Mobile Sempron SI-40 and Ryzen 9 7950X3D 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) | 16 (Hexadeca-Core) |
| Threads | 1 | 32 |
| Base clock speed | no data | 4.2 GHz |
| Boost clock speed | 2 GHz | 5.7 GHz |
| Bus rate | 1800 MHz | 64K (per core) |
| L1 cache | no data | 64K (per core) |
| L2 cache | 512 KB | 1 MB (per core) |
| L3 cache | no data | 128 MB (shared) |
| Chip lithography | 65 nm | 5 nm, 6 nm |
| Die size | no data | 2x 71 mm2 |
| Maximum core temperature | 100 °C | 89 °C |
| Maximum case temperature (TCase) | no data | 47 °C |
| Number of transistors | no data | 13,140 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Mobile Sempron SI-40 and Ryzen 9 7950X3D 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 | AM5 |
| Power consumption (TDP) | 25 Watt | 120 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron SI-40 and Ryzen 9 7950X3D. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 65 nm, 1.075 - 1.125V | 86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, AVX512F, FMA3, SHA, XFR2, Precision Boost 2 |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Mobile Sempron SI-40 and Ryzen 9 7950X3D are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Mobile Sempron SI-40 and Ryzen 9 7950X3D. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5-5200 |
| Maximum memory size | no data | 128 GB |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon Graphics (Ryzen 7000) (400 - 2200 MHz) |
Peripherals
Specifications and connection of peripherals supported by Mobile Sempron SI-40 and Ryzen 9 7950X3D.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 24 |
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.
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 | 39.01 |
| Recency | 4 July 2008 | 4 January 2023 |
| Physical cores | 1 | 16 |
| Threads | 1 | 32 |
| Chip lithography | 65 nm | 5 nm |
| Power consumption (TDP) | 25 Watt | 120 Watt |
Mobile Sempron SI-40 has 380% lower power consumption.
Ryzen 9 7950X3D, on the other hand, has a 19405% higher aggregate performance score, an age advantage of 14 years, 1500% more physical cores and 3100% more threads, and a 1200% more advanced lithography process.
The Ryzen 9 7950X3D is our recommended choice as it beats the Mobile Sempron SI-40 in performance tests.
Be aware that Mobile Sempron SI-40 is a notebook processor while Ryzen 9 7950X3D is a desktop one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
