EPYC 7251 vs Atom Z605
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 1051 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.94 |
| Market segment | Laptop | Server |
| Series | Intel Atom | AMD EPYC |
| Power efficiency | no data | 3.00 |
| Designer | Intel | AMD |
| Manufacturer | Intel | no data |
| Architecture codename | Lincroft (2010−2011) | Naples (2017−2018) |
| Release date | 4 May 2010 (16 years ago) | 20 June 2017 (8 years ago) |
| Launch price (MSRP) | no data | $574 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Basic parameters of Atom Z605 and EPYC 7251: 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 | 1 (Single-Core) | 8 (Octa-Core) |
| Threads | 2 | 16 |
| Base clock speed | no data | 2.1 GHz |
| Boost clock speed | 1 GHz | 2.1 GHz |
| Bus type | cDMI | no data |
| Bus rate | 400 MT/s | no data |
| Multiplier | 10 | 21 |
| L1 cache | 56 KB | 768 KB |
| L2 cache | 512 KB (per core) | 4 MB |
| L3 cache | 0 KB | 32 MB (shared) |
| Chip lithography | 45 nm | 14 nm |
| Die size | 65.2526 mm2 | 213 mm2 |
| Number of transistors | 140 million | 19200 Million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | - | + |
Compatibility
Information on Atom Z605 and EPYC 7251 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) | 2 (Multiprocessor) |
| Socket | Intel BGA 518 | TR4 |
| Power consumption (TDP) | 2.2 Watt | 120 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom Z605 and EPYC 7251. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom Z605 and EPYC 7251 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom Z605 and EPYC 7251. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2 | DDR4 Eight-channel |
| Maximum memory size | 2 GB | 2 TiB |
| Max memory channels | 1 | 8 |
| Maximum memory bandwidth | 3.2 GB/s | 153.652 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | PowerVR SGX535 | no data |
Peripherals
Specifications and connection of peripherals supported by Atom Z605 and EPYC 7251.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Recency | 4 May 2010 | 20 June 2017 |
| Physical cores | 1 | 8 |
| Threads | 2 | 16 |
| Chip lithography | 45 nm | 14 nm |
| Power consumption (TDP) | 2 Watt | 120 Watt |
Atom Z605 has 5900% lower power consumption.
EPYC 7251, on the other hand, has an age advantage of 7 years, 700% more physical cores and 700% more threads, and a 221% more advanced lithography process.
We couldn't decide between Intel Atom Z605 and AMD EPYC 7251. We've got no test results to judge.
Be aware that Atom Z605 is a notebook processor while EPYC 7251 is a server/workstation one.
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