Mobile Sempron SI-42 vs EPYC 9455P
Aggregate performance score
EPYC 9455P outperforms Mobile Sempron SI-42 by a whopping 35058% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 23 | 3529 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 11.73 | no data |
| Market segment | Server | Laptop |
| Series | no data | AMD Mobile Sempron |
| Power efficiency | 9.40 | 0.32 |
| Designer | AMD | AMD |
| Manufacturer | TSMC | no data |
| Architecture codename | Turin (2024) | Sable (2008−2009) |
| Release date | 10 October 2024 (1 year ago) | 1 September 2009 (16 years ago) |
| Launch price (MSRP) | $4,819 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
EPYC 9455P 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 | 48 (Octatetraconta-Core) | 1 (Single-Core) |
| Threads | 96 | 1 |
| Base clock speed | 3.15 GHz | no data |
| Boost clock speed | 4.4 GHz | 2.1 GHz |
| Bus rate | no data | 1800 MHz |
| L1 cache | 80 KB (per core) | 128 KB |
| L2 cache | 1 MB (per core) | 512 KB |
| L3 cache | 256 MB (shared) | no data |
| Chip lithography | 4 nm | 65 nm |
| Die size | 8x 70.6 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 66,520 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
Compatibility
Information on EPYC 9455P 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 | no data |
| Socket | SP5 | S1g2 |
| Power consumption (TDP) | 300 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9455P and Mobile Sempron SI-42. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 65 nm, 1.075 - 1.125 |
| AES-NI | + | - |
| AVX | + | - |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 9455P and Mobile Sempron SI-42 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9455P and Mobile Sempron SI-42. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | no data |
Peripherals
Specifications and connection of peripherals supported by EPYC 9455P and Mobile Sempron SI-42.
| PCIe version | 5.0 | no data |
| PCI Express lanes | 128 | no data |
Pros & cons summary
| Performance score | 66.80 | 0.19 |
| Recency | 10 October 2024 | 1 September 2009 |
| Physical cores | 48 | 1 |
| Threads | 96 | 1 |
| Chip lithography | 4 nm | 65 nm |
| Power consumption (TDP) | 300 Watt | 25 Watt |
EPYC 9455P has a 35057.9% higher aggregate performance score, an age advantage of 15 years, 4700% more physical cores and 9500% more threads, and a 1525% more advanced lithography process.
Mobile Sempron SI-42, on the other hand, has 1100% lower power consumption.
The AMD EPYC 9455P is our recommended choice as it beats the AMD Mobile Sempron SI-42 in performance tests.
Be aware that EPYC 9455P is a server/workstation processor while Mobile Sempron SI-42 is a notebook one.
Other comparisons
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