EPYC 9455 vs Sempron 3850
Primary details
Comparing Sempron 3850 and EPYC 9455 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2673 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 2.74 | no data |
| Architecture codename | Kabini (2013−2014) | Turin (2024) |
| Release date | 9 April 2014 (10 years ago) | 10 October 2024 (recently) |
| Launch price (MSRP) | no data | $5,412 |
Detailed specifications
Sempron 3850 and EPYC 9455 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 | 4 (Quad-Core) | 48 (Octatetraconta-Core) |
| Threads | 4 | 96 |
| Base clock speed | no data | 3.15 GHz |
| Boost clock speed | 1.3 GHz | 4.4 GHz |
| L1 cache | 256 KB | 80 KB (per core) |
| L2 cache | 2048 KB | 1 MB (per core) |
| L3 cache | no data | 192 MB (shared) |
| Chip lithography | 28 nm | 4 nm |
| Die size | 107 mm2 | 6x 70.6 mm2 |
| Maximum core temperature | 90 °C | no data |
| Maximum case temperature (TCase) | 90 °C | no data |
| Number of transistors | no data | 49,890 million |
| 64 bit support | + | + |
Compatibility
Information on Sempron 3850 and EPYC 9455 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 | 2 |
| Socket | AM1 | SP5 |
| Power consumption (TDP) | 25 Watt | 300 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Sempron 3850 and EPYC 9455. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | FMA4 | - |
| AVX | + | + |
| PowerNow | + | - |
| PowerGating | + | - |
| VirusProtect | + | - |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Sempron 3850 and EPYC 9455 are enumerated here.
| AMD-V | + | + |
| IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Sempron 3850 and EPYC 9455. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1600 | DDR5 |
| Max memory channels | 1 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon R3 Graphics | N/A |
| Number of pipelines | 128 | no data |
| Enduro | + | - |
| Switchable graphics | + | - |
| UVD | + | - |
| VCE | + | - |
Graphics interfaces
Available interfaces and connections of Sempron 3850 and EPYC 9455 integrated GPUs.
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by Sempron 3850 and EPYC 9455 integrated GPUs, sometimes API versions are included.
| DirectX | DirectX® 12 | no data |
| Vulkan | + | - |
Peripherals
Specifications and connection of peripherals supported by Sempron 3850 and EPYC 9455.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | 4 | 128 |
Pros & cons summary
| Recency | 9 April 2014 | 10 October 2024 |
| Physical cores | 4 | 48 |
| Threads | 4 | 96 |
| Chip lithography | 28 nm | 4 nm |
| Power consumption (TDP) | 25 Watt | 300 Watt |
Sempron 3850 has 1100% lower power consumption.
EPYC 9455, on the other hand, has an age advantage of 10 years, 1100% more physical cores and 2300% more threads, and a 600% more advanced lithography process.
We couldn't decide between Sempron 3850 and EPYC 9455. We've got no test results to judge.
Note that Sempron 3850 is a desktop processor while EPYC 9455 is a server/workstation one.
Should you still have questions on choice between Sempron 3850 and EPYC 9455, ask them in Comments section, and we shall answer.
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