Atom E640 vs A9-9420
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2831 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Bristol Ridge | no data |
| Power efficiency | 2.45 | no data |
| Designer | AMD | Intel |
| Manufacturer | GlobalFoundries | Intel |
| Architecture codename | Stoney Ridge (2016−2019) | Tunnel Creek (2010) |
| Release date | 31 May 2016 (9 years ago) | 14 September 2010 (15 years ago) |
Detailed specifications
Basic parameters of A9-9420 and Atom E640: 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 | 2 (Dual-core) | 1 (Single-Core) |
| Threads | 2 | 2 |
| Base clock speed | 3 GHz | no data |
| Boost clock speed | 3.6 GHz | 1 GHz |
| L1 cache | 160 KB | 64 KB (per core) |
| L2 cache | 1 MB (shared) | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 28 nm | 45 nm |
| Die size | 125 mm2 | 26 mm2 |
| Maximum core temperature | 90 °C | no data |
| Maximum case temperature (TCase) | 74 °C | no data |
| Number of transistors | 1,200 million | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on A9-9420 and Atom E640 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 | 1 |
| Socket | FT4 | Intel BGA 676 |
| Power consumption (TDP) | 15 Watt | 3 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A9-9420 and Atom E640. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Virtualization, | no data |
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Hyper-Threading Technology | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A9-9420 and Atom E640 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A9-9420 and Atom E640. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Radeon R5 | Intel GMA 600 |
Peripherals
Specifications and connection of peripherals supported by A9-9420 and Atom E640.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 8 | no data |
Pros & cons summary
| Recency | 31 May 2016 | 14 September 2010 |
| Physical cores | 2 | 1 |
| Chip lithography | 28 nm | 45 nm |
| Power consumption (TDP) | 15 Watt | 3 Watt |
A9-9420 has an age advantage of 5 years, 100% more physical cores, and a 61% more advanced lithography process.
Atom E640, on the other hand, has 400% lower power consumption.
We couldn't decide between AMD A9-9420 and Intel Atom E640. We've got no test results to judge.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
