Ryzen Embedded 8640U vs EPYC Embedded 3351
Primary details
Comparing EPYC Embedded 3351 and Ryzen Embedded 8640U 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 | Laptop |
| 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) |
Detailed specifications
EPYC Embedded 3351 and Ryzen Embedded 8640U 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 | 12 (Dodeca-Core) | 6 (Hexa-Core) |
| Threads | 24 | 12 |
| Base clock speed | 1.9 GHz | 3.5 GHz |
| Boost clock speed | 1.9 GHz | 4.9 GHz |
| Multiplier | 19 | no data |
| L1 cache | 1152 KB | 64 KB (per core) |
| L2 cache | 6 MB | 1 MB (per core) |
| L3 cache | 32 MB (shared) | 16 MB (shared) |
| Chip lithography | 14 nm | 4 nm |
| Die size | 213 mm2 | 178 mm2 |
| Number of transistors | 9600 Million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on EPYC Embedded 3351 and Ryzen Embedded 8640U 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) | 80 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 3351 and Ryzen Embedded 8640U. 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 3351 and Ryzen Embedded 8640U are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3351 and Ryzen Embedded 8640U. 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 3351 and Ryzen Embedded 8640U.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 64 | 20 |
Pros & cons summary
| Recency | 21 February 2018 | 2 April 2024 |
| Physical cores | 12 | 6 |
| Threads | 24 | 12 |
| Chip lithography | 14 nm | 4 nm |
| Power consumption (TDP) | 80 Watt | 28 Watt |
EPYC Embedded 3351 has 100% more physical cores and 100% more threads.
Ryzen Embedded 8640U, on the other hand, has an age advantage of 6 years, a 250% more advanced lithography process, and 185.7% lower power consumption.
We couldn't decide between EPYC Embedded 3351 and Ryzen Embedded 8640U. We've got no test results to judge.
Be aware that EPYC Embedded 3351 is a server/workstation processor while Ryzen Embedded 8640U is a notebook one.
Should you still have questions on choice between EPYC Embedded 3351 and Ryzen Embedded 8640U, ask them in Comments section, and we shall answer.
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