Atom C3958 vs EPYC Embedded 3251
Primary details
Comparing EPYC Embedded 3251 and Atom C3958 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 1748 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.53 |
| Market segment | Server | Server |
| Series | AMD EPYC Embedded | Intel Atom |
| Power efficiency | no data | 7.54 |
| Architecture codename | Zen (2017−2020) | Goldmont (2016−2017) |
| Release date | 21 February 2018 (6 years ago) | 15 August 2017 (7 years ago) |
| Launch price (MSRP) | $315 | $449 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
EPYC Embedded 3251 and Atom C3958 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 | 16 |
| Base clock speed | 2.5 GHz | 2 GHz |
| Boost clock speed | 2.5 GHz | 2 GHz |
| Multiplier | 25 | 20 |
| L1 cache | 768 KB | 896 KB |
| L2 cache | 4 MB | 16 MB |
| L3 cache | 16 MB (shared) | 16 MB |
| Chip lithography | 14 nm | 14 nm |
| Die size | 213 mm2 | no data |
| Maximum core temperature | no data | 83 °C |
| Number of transistors | 4800 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on EPYC Embedded 3251 and Atom C3958 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 | FCBGA1310 |
| Power consumption (TDP) | 55 Watt | 31 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 3251 and Atom C3958. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| QuickAssist | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
Security technologies
EPYC Embedded 3251 and Atom C3958 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | no data | + |
| Secure Boot | no data | + |
| Secure Key | no data | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC Embedded 3251 and Atom C3958 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3251 and Atom C3958. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR4: 2400 |
| Maximum memory size | 512 GB | 256 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 42.671 GB/s | 38.397 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by EPYC Embedded 3251 and Atom C3958.
| PCIe version | no data | 3 |
| PCI Express lanes | no data | 16 |
| USB revision | no data | 3 |
| Total number of SATA ports | no data | 16 |
| Max number of SATA 6 Gb/s Ports | no data | 16 |
| Number of USB ports | no data | 8 |
| Integrated LAN | no data | 4x10/2.5/1 GBE |
Pros & cons summary
| Recency | 21 February 2018 | 15 August 2017 |
| Physical cores | 8 | 16 |
| Power consumption (TDP) | 55 Watt | 31 Watt |
EPYC Embedded 3251 has an age advantage of 6 months.
Atom C3958, on the other hand, has 100% more physical cores, and 77.4% lower power consumption.
We couldn't decide between EPYC Embedded 3251 and Atom C3958. We've got no test results to judge.
Should you still have questions on choice between EPYC Embedded 3251 and Atom C3958, ask them in Comments section, and we shall answer.
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