Atom C3758 vs EPYC 7251
Aggregate performance score
EPYC 7251 outperforms Atom C3758 by a whopping 224% based on our aggregate benchmark results.
Primary details
Comparing EPYC 7251 and Atom C3758 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 806 | 1657 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.78 | 1.52 |
| Market segment | Server | Server |
| Series | AMD EPYC | Intel Atom |
| Power efficiency | 7.41 | 10.98 |
| Architecture codename | Naples (2017−2018) | Goldmont (2016−2017) |
| Release date | 29 June 2017 (7 years ago) | 15 August 2017 (7 years ago) |
| Launch price (MSRP) | $574 | $193 |
Cost-effectiveness evaluation
Performance per price, higher is better.
EPYC 7251 has 83% better value for money than Atom C3758.
Detailed specifications
EPYC 7251 and Atom C3758 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) | 8 (Octa-Core) |
| Threads | 16 | 8 |
| Base clock speed | 2.1 GHz | 2.2 GHz |
| Boost clock speed | 2.9 GHz | 2.2 GHz |
| Multiplier | 21 | 22 |
| L1 cache | 96K (per core) | 448 KB |
| L2 cache | 512K (per core) | 16 MB |
| L3 cache | 32 MB (shared) | 16 MB |
| Chip lithography | 14 nm | 14 nm |
| Die size | 192 mm2 | no data |
| Maximum core temperature | no data | 82 °C |
| Number of transistors | 4,800 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on EPYC 7251 and Atom C3758 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 | 2 (Multiprocessor) | 1 (Uniprocessor) |
| Socket | TR4 | FCBGA1310 |
| Power consumption (TDP) | 120 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7251 and Atom C3758. 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 7251 and Atom C3758 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 7251 and Atom C3758 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 7251 and Atom C3758. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR4: 2400 |
| Maximum memory size | 2 TiB | 256 GB |
| Max memory channels | 8 | 2 |
| Maximum memory bandwidth | 153.652 GB/s | 34.134 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by EPYC 7251 and Atom C3758.
| PCIe version | 3.0 | 3 |
| PCI Express lanes | 128 | 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 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Performance score | 9.40 | 2.90 |
| Recency | 29 June 2017 | 15 August 2017 |
| Threads | 16 | 8 |
| Power consumption (TDP) | 120 Watt | 25 Watt |
EPYC 7251 has a 224.1% higher aggregate performance score, and 100% more threads.
Atom C3758, on the other hand, has an age advantage of 1 month, and 380% lower power consumption.
The EPYC 7251 is our recommended choice as it beats the Atom C3758 in performance tests.
Should you still have questions on choice between EPYC 7251 and Atom C3758, ask them in Comments section, and we shall answer.
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