EPYC Embedded 3451 vs EPYC Embedded 3251
Primary details
Comparing EPYC Embedded 3251 and EPYC Embedded 3451 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Series | AMD EPYC Embedded | AMD EPYC Embedded |
| Architecture codename | Zen (2017−2020) | Zen (2017−2020) |
| Release date | 21 February 2018 (6 years ago) | 21 February 2018 (6 years ago) |
| Launch price (MSRP) | $315 | $880 |
Detailed specifications
EPYC Embedded 3251 and EPYC Embedded 3451 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 | 8 (Octa-Core) | 16 (Hexadeca-Core) |
| Threads | 16 | 32 |
| Base clock speed | 2.5 GHz | 2.15 GHz |
| Boost clock speed | 3.1 GHz | 3 GHz |
| Multiplier | 25 | 21.5 |
| L1 cache | 96K (per core) | 96K (per core) |
| L2 cache | 512K (per core) | 512K (per core) |
| L3 cache | 16 MB (shared) | 32 MB (shared) |
| Chip lithography | 14 nm | 14 nm |
| Die size | 192 mm2 | 2x 213 mm2 |
| Number of transistors | 4,800 million | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on EPYC Embedded 3251 and EPYC Embedded 3451 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 (Uniprocessor) | 1 (Uniprocessor) |
| Socket | TR4 | AMD BGA SP4r2 |
| Power consumption (TDP) | 50 Watt | 100 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 3251 and EPYC Embedded 3451. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC Embedded 3251 and EPYC Embedded 3451 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3251 and EPYC Embedded 3451. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR4-2666 |
| Maximum memory size | 512 GB | 1 TiB |
| Max memory channels | 2 | 4 |
| Maximum memory bandwidth | 42.671 GB/s | 85.33 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by EPYC Embedded 3251 and EPYC Embedded 3451.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 64 |
Pros & cons summary
| Physical cores | 8 | 16 |
| Threads | 16 | 32 |
| Power consumption (TDP) | 50 Watt | 100 Watt |
EPYC Embedded 3251 has 100% lower power consumption.
EPYC Embedded 3451, on the other hand, has 100% more physical cores and 100% more threads.
We couldn't decide between EPYC Embedded 3251 and EPYC Embedded 3451. We've got no test results to judge.
Should you still have questions on choice between EPYC Embedded 3251 and EPYC Embedded 3451, ask them in Comments section, and we shall answer.
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