Atom E640 vs A8-4557M
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD A-Series | no data |
| Designer | AMD | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Trinity (2012−2013) | Tunnel Creek (2010) |
| Release date | 15 May 2012 (14 years ago) | 14 September 2010 (15 years ago) |
Detailed specifications
Basic parameters of A8-4557M 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 | 4 (Quad-Core) | 1 (Single-Core) |
| Threads | 4 | 2 |
| Base clock speed | 1.9 GHz | no data |
| Boost clock speed | 2.8 GHz | 1 GHz |
| L1 cache | no data | 64 KB (per core) |
| L2 cache | 4 MB | 512 KB (per core) |
| L3 cache | no data | 0 KB |
| Chip lithography | 32 nm | 45 nm |
| Die size | 246 mm2 | 26 mm2 |
| Number of transistors | 1303 Million | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on A8-4557M 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 | no data | 1 |
| Socket | BGA | Intel BGA 676 |
| Power consumption (TDP) | 35 Watt | 3 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A8-4557M and Atom E640. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA | no data |
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Hyper-Threading Technology | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A8-4557M and Atom E640. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 7640G (497 - 655 MHz) | Intel GMA 600 |
Pros & cons summary
| Recency | 15 May 2012 | 14 September 2010 |
| Physical cores | 4 | 1 |
| Threads | 4 | 2 |
| Chip lithography | 32 nm | 45 nm |
| Power consumption (TDP) | 35 Watt | 3 Watt |
A8-4557M has an age advantage of 1 year, 300% more physical cores and 100% more threads, and a 41% more advanced lithography process.
Atom E640, on the other hand, has 1067% lower power consumption.
We couldn't decide between AMD A8-4557M and Intel Atom E640. We've got no test results to judge.
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