Ryzen 5 8640HS vs EPYC Embedded 3451
Primary details
Comparing EPYC Embedded 3451 and Ryzen 5 8640HS processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 603 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | AMD EPYC Embedded | no data |
| Power efficiency | no data | 42.78 |
| Architecture codename | Zen (2017−2020) | Hawk Point-HS (Zen 4) (2023−2024) |
| Release date | 21 February 2018 (6 years ago) | 6 December 2023 (less than a year ago) |
| Launch price (MSRP) | $880 | no data |
Detailed specifications
EPYC Embedded 3451 and Ryzen 5 8640HS 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 | 3.5 GHz |
| Boost clock speed | 3 GHz | 4.9 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 |
| Maximum core temperature | no data | 100 °C |
| 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 5 8640HS 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 | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 3451 and Ryzen 5 8640HS. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3 |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC Embedded 3451 and Ryzen 5 8640HS are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3451 and Ryzen 5 8640HS. 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 5 8640HS.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 64 | 20 |
Pros & cons summary
| Recency | 21 February 2018 | 6 December 2023 |
| Physical cores | 16 | 6 |
| Threads | 32 | 12 |
| Chip lithography | 14 nm | 4 nm |
| Power consumption (TDP) | 100 Watt | 28 Watt |
EPYC Embedded 3451 has 166.7% more physical cores and 166.7% more threads.
Ryzen 5 8640HS, on the other hand, has an age advantage of 5 years, a 250% more advanced lithography process, and 257.1% lower power consumption.
We couldn't decide between EPYC Embedded 3451 and Ryzen 5 8640HS. We've got no test results to judge.
Be aware that EPYC Embedded 3451 is a server/workstation processor while Ryzen 5 8640HS is a notebook one.
Should you still have questions on choice between EPYC Embedded 3451 and Ryzen 5 8640HS, ask them in Comments section, and we shall answer.
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