Atom Z650 vs EPYC 7401P
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 510 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.60 | no data |
| Market segment | Server | Laptop |
| Series | AMD EPYC | Intel Atom |
| Power efficiency | 3.95 | no data |
| Designer | AMD | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Naples (2017−2018) | Lincroft (2010−2011) |
| Release date | 20 June 2017 (8 years ago) | 11 April 2011 (15 years ago) |
| Launch price (MSRP) | $1,075 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Basic parameters of EPYC 7401P and Atom Z650: 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 | 24 (Tetracosa-Core) | 1 (Single-Core) |
| Threads | 48 | 2 |
| Base clock speed | 2 GHz | 1.2 GHz |
| Boost clock speed | 2 GHz | 1.2 GHz |
| Bus type | no data | cDMI |
| Bus rate | no data | 400 MT/s |
| Multiplier | 20 | 8 |
| L1 cache | 2.25 MB | 56 KB |
| L2 cache | 12 MB | 512 KB (per core) |
| L3 cache | 64 MB (shared) | 0 KB |
| Chip lithography | 14 nm | 45 nm |
| Die size | 213 mm2 | 65 mm2 |
| Maximum core temperature | no data | 90 °C |
| Number of transistors | 19200 Million | 140 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on EPYC 7401P and Atom Z650 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 | T-PBGA518 |
| Power consumption (TDP) | 155 W, 170 Watt | 3 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7401P and Atom Z650. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE, Intel® SSE2, Intel® SSE3 |
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
Security technologies
EPYC 7401P and Atom Z650 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7401P and Atom Z650 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | - |
| VT-x | no data | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7401P and Atom Z650. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR2 |
| Maximum memory size | 2 TiB | 2.93 GB |
| Max memory channels | 8 | 1 |
| Maximum memory bandwidth | 170.671 GB/s | 3.2 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | PowerVR SGX535 |
Graphics interfaces
Available interfaces and connections of EPYC 7401P and Atom Z650 integrated GPUs.
| LVDS | no data | + |
Peripherals
Specifications and connection of peripherals supported by EPYC 7401P and Atom Z650.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 128 | no data |
| PCI support | no data | - |
Pros & cons summary
| Recency | 20 June 2017 | 11 April 2011 |
| Physical cores | 24 | 1 |
| Threads | 48 | 2 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 155 Watt | 3 Watt |
EPYC 7401P has an age advantage of 6 years, 2300% more physical cores and 2300% more threads, and a 221% more advanced lithography process.
Atom Z650, on the other hand, has 5067% lower power consumption.
We couldn't decide between AMD EPYC 7401P and Intel Atom Z650. We've got no test results to judge.
Be aware that EPYC 7401P is a server/workstation processor while Atom Z650 is a notebook one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
