Atom E645C vs E640T
Primary details
Comparing Atom E640T and Atom E645C 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 |
| Architecture codename | Tunnel Creek (2010) | Stellarton (2010) |
| Release date | 14 September 2010 (14 years ago) | 22 November 2010 (14 years ago) |
Detailed specifications
Atom E640T and Atom E645C 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 | 1 (Single-Core) | 1 (Single-Core) |
| Threads | 2 | 2 |
| Boost clock speed | 1 GHz | 1 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 45 nm | 45 nm |
| Die size | 26 mm2 | 26 mm2 |
| Number of transistors | 47 million | 47 million |
| 64 bit support | - | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Atom E640T and Atom E645C 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 | Intel BGA 676 | Intel BGA1466 |
| Power consumption (TDP) | 3 Watt | 4 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom E640T and Atom E645C. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | + |
| Hyper-Threading Technology | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom E640T and Atom E645C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel GMA 600 | Intel GMA 600 |
Pros & cons summary
| Recency | 14 September 2010 | 22 November 2010 |
| Power consumption (TDP) | 3 Watt | 4 Watt |
Atom E640T has 33.3% lower power consumption.
Atom E645C, on the other hand, has an age advantage of 2 months.
We couldn't decide between Atom E640T and Atom E645C. We've got no test results to judge.
Should you still have questions on choice between Atom E640T and Atom E645C, ask them in Comments section, and we shall answer.
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