EPYC 7H12 vs Mobile Sempron SI-40
Primary details
Comparing Mobile Sempron SI-40 and EPYC 7H12 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 48 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | AMD Mobile Sempron | AMD EPYC |
| Power efficiency | no data | 14.82 |
| Architecture codename | Sable (2008−2009) | Zen 2 (2017−2020) |
| Release date | 4 July 2008 (16 years ago) | 18 September 2019 (5 years ago) |
Detailed specifications
Mobile Sempron SI-40 and EPYC 7H12 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) | 64 (Tetrahexaconta-Core) |
| Threads | 1 | 128 |
| Base clock speed | no data | 2.6 GHz |
| Boost clock speed | 2 GHz | 3.3 GHz |
| Bus rate | 1800 MHz | no data |
| Multiplier | no data | 26 |
| L1 cache | no data | 96K (per core) |
| L2 cache | 512 KB | 512K (per core) |
| L3 cache | no data | 256 MB (shared) |
| Chip lithography | 65 nm | 7 nm, 14 nm |
| Die size | no data | 192 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Mobile Sempron SI-40 and EPYC 7H12 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 | 2 (Multiprocessor) |
| Socket | S1g2 | TR4 |
| Power consumption (TDP) | 25 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron SI-40 and EPYC 7H12. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 65 nm, 1.075 - 1.125V | no data |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Mobile Sempron SI-40 and EPYC 7H12 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Mobile Sempron SI-40 and EPYC 7H12. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4 Eight-channel |
| Maximum memory size | no data | 4 TiB |
| Max memory channels | no data | 8 |
| Maximum memory bandwidth | no data | 204.763 GB/s |
| ECC memory support | - | + |
Pros & cons summary
| Recency | 4 July 2008 | 18 September 2019 |
| Physical cores | 1 | 64 |
| Threads | 1 | 128 |
| Chip lithography | 65 nm | 7 nm |
| Power consumption (TDP) | 25 Watt | 280 Watt |
Mobile Sempron SI-40 has 1020% lower power consumption.
EPYC 7H12, on the other hand, has an age advantage of 11 years, 6300% more physical cores and 12700% more threads, and a 828.6% more advanced lithography process.
We couldn't decide between Mobile Sempron SI-40 and EPYC 7H12. We've got no test results to judge.
Be aware that Mobile Sempron SI-40 is a notebook processor while EPYC 7H12 is a server/workstation one.
Should you still have questions on choice between Mobile Sempron SI-40 and EPYC 7H12, ask them in Comments section, and we shall answer.
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