EPYC 9655P vs Mobile Sempron SI-42
Aggregate performance score
EPYC 9655P outperforms Mobile Sempron SI-42 by a whopping 47519% based on our aggregate benchmark results.
Primary details
Comparing Mobile Sempron SI-42 and EPYC 9655P processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3219 | 1 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 2.62 |
| Market segment | Laptop | Server |
| Series | AMD Mobile Sempron | no data |
| Power efficiency | 0.79 | 23.64 |
| Architecture codename | Sable (2008−2009) | Turin (2024) |
| Release date | 1 September 2009 (15 years ago) | 10 October 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $10,811 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Mobile Sempron SI-42 and EPYC 9655P 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) | 96 |
| Threads | 1 | 192 |
| Base clock speed | no data | 2.6 GHz |
| Boost clock speed | 2.1 GHz | 4.5 GHz |
| Bus rate | 1800 MHz | no data |
| L1 cache | 128 KB | 80 KB (per core) |
| L2 cache | 512 KB | 1 MB (per core) |
| L3 cache | no data | 384 MB (shared) |
| Chip lithography | 65 nm | 4 nm |
| Die size | no data | 12x 70.6 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 99,780 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Mobile Sempron SI-42 and EPYC 9655P 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 | SP5 |
| Power consumption (TDP) | 25 Watt | 400 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron SI-42 and EPYC 9655P. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 65 nm, 1.075 - 1.125 | no data |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Mobile Sempron SI-42 and EPYC 9655P are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Mobile Sempron SI-42 and EPYC 9655P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5 |
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 EPYC 9655P.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Performance score | 0.21 | 100.00 |
| Recency | 1 September 2009 | 10 October 2024 |
| Physical cores | 1 | 96 |
| Threads | 1 | 192 |
| Chip lithography | 65 nm | 4 nm |
| Power consumption (TDP) | 25 Watt | 400 Watt |
Mobile Sempron SI-42 has 1500% lower power consumption.
EPYC 9655P, on the other hand, has a 47519% higher aggregate performance score, an age advantage of 15 years, 9500% more physical cores and 19100% more threads, and a 1525% more advanced lithography process.
The EPYC 9655P 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 EPYC 9655P is a server/workstation one.
Should you still have questions on choice between Mobile Sempron SI-42 and EPYC 9655P, ask them in Comments section, and we shall answer.
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