Ryzen Embedded 8645HS vs EPYC Embedded 3451
Primary details
Comparing EPYC Embedded 3451 and Ryzen Embedded 8645HS 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 | no data |
| Architecture codename | Zen (2017−2020) | Hawk Point (2024) |
| Release date | 21 February 2018 (6 years ago) | 2 April 2024 (less than a year ago) |
| Launch price (MSRP) | $880 | no data |
Detailed specifications
EPYC Embedded 3451 and Ryzen Embedded 8645HS 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 | 16 (Hexadeca-Core) | 6 (Hexa-Core) |
| Threads | 32 | 12 |
| Base clock speed | 2.15 GHz | 4.3 GHz |
| Boost clock speed | 3 GHz | 5 GHz |
| Multiplier | 21.5 | no data |
| L1 cache | 96K (per core) | 64 KB (per core) |
| L2 cache | 512K (per core) | 1 MB (per core) |
| L3 cache | 32 MB (shared) | 16 MB (shared) |
| Chip lithography | 14 nm | 4 nm |
| Die size | 2x 213 mm2 | 178 mm2 |
| Number of transistors | 4,800 million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on EPYC Embedded 3451 and Ryzen Embedded 8645HS 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 |
| Socket | AMD BGA SP4r2 | FP8 |
| Power consumption (TDP) | 100 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 3451 and Ryzen Embedded 8645HS. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC Embedded 3451 and Ryzen Embedded 8645HS are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3451 and Ryzen Embedded 8645HS. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR5 |
| Maximum memory size | 1 TiB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 85.33 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon 760M |
Peripherals
Specifications and connection of peripherals supported by EPYC Embedded 3451 and Ryzen Embedded 8645HS.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 64 | 20 |
Pros & cons summary
| Recency | 21 February 2018 | 2 April 2024 |
| Physical cores | 16 | 6 |
| Threads | 32 | 12 |
| Chip lithography | 14 nm | 4 nm |
| Power consumption (TDP) | 100 Watt | 45 Watt |
EPYC Embedded 3451 has 166.7% more physical cores and 166.7% more threads.
Ryzen Embedded 8645HS, on the other hand, has an age advantage of 6 years, a 250% more advanced lithography process, and 122.2% lower power consumption.
We couldn't decide between EPYC Embedded 3451 and Ryzen Embedded 8645HS. We've got no test results to judge.
Should you still have questions on choice between EPYC Embedded 3451 and Ryzen Embedded 8645HS, ask them in Comments section, and we shall answer.
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