Ryzen 5 PRO 8640U vs EPYC Embedded 3251
Primary details
Comparing EPYC Embedded 3251 and Ryzen 5 PRO 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 | Server |
| Series | AMD EPYC Embedded | no data |
| Architecture codename | Zen (2017−2020) | Hawk Point (2024) |
| Release date | 21 February 2018 (6 years ago) | 16 April 2024 (less than a year ago) |
| Launch price (MSRP) | $315 | no data |
Detailed specifications
EPYC Embedded 3251 and Ryzen 5 PRO 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 | 8 (Octa-Core) | 6 (Hexa-Core) |
| Threads | 16 | 12 |
| Base clock speed | 2.5 GHz | 3.5 GHz |
| Boost clock speed | 2.5 GHz | 4.9 GHz |
| Multiplier | 25 | no data |
| L1 cache | 768 KB | 64 KB (per core) |
| L2 cache | 4 MB | 1 MB (per core) |
| L3 cache | 16 MB (shared) | 16 MB (shared) |
| Chip lithography | 14 nm | 4 nm |
| Die size | 213 mm2 | 178 mm2 |
| Number of transistors | 4800 Million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on EPYC Embedded 3251 and Ryzen 5 PRO 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 | TR4 | FP7 |
| Power consumption (TDP) | 55 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 3251 and Ryzen 5 PRO 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 3251 and Ryzen 5 PRO 8640U are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3251 and Ryzen 5 PRO 8640U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR5 |
| Maximum memory size | 512 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 42.671 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 3251 and Ryzen 5 PRO 8640U.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 21 February 2018 | 16 April 2024 |
| Physical cores | 8 | 6 |
| Threads | 16 | 12 |
| Chip lithography | 14 nm | 4 nm |
| Power consumption (TDP) | 55 Watt | 28 Watt |
EPYC Embedded 3251 has 33.3% more physical cores and 33.3% more threads.
Ryzen 5 PRO 8640U, on the other hand, has an age advantage of 6 years, a 250% more advanced lithography process, and 96.4% lower power consumption.
We couldn't decide between EPYC Embedded 3251 and Ryzen 5 PRO 8640U. We've got no test results to judge.
Should you still have questions on choice between EPYC Embedded 3251 and Ryzen 5 PRO 8640U, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
