Celeron 947UE vs Atom E645C
Primary details
Comparing Atom E645C and Celeron 947UE 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 | Stellarton (2010) | Ivy Bridge (2012−2013) |
| Release date | 22 November 2010 (14 years ago) | 20 January 2013 (11 years ago) |
Detailed specifications
Atom E645C and Celeron 947UE 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 | 1 |
| Boost clock speed | 1 GHz | 1.4 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 256 KB (per core) |
| L3 cache | 0 KB | 1024 KB |
| Chip lithography | 45 nm | 22 nm |
| Die size | 26 mm2 | 118 mm2 |
| Maximum case temperature (TCase) | no data | 105 °C |
| Number of transistors | 47 million | 1,400 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Atom E645C and Celeron 947UE 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 BGA1466 | Intel BGA1023 |
| Power consumption (TDP) | 4 Watt | 17 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom E645C and Celeron 947UE. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | + |
| Hyper-Threading Technology | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom E645C and Celeron 947UE are enumerated here.
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom E645C and Celeron 947UE. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel GMA 600 | Intel HD |
Pros & cons summary
| Recency | 22 November 2010 | 20 January 2013 |
| Threads | 2 | 1 |
| Chip lithography | 45 nm | 22 nm |
| Power consumption (TDP) | 4 Watt | 17 Watt |
Atom E645C has 100% more threads, and 325% lower power consumption.
Celeron 947UE, on the other hand, has an age advantage of 2 years, and a 104.5% more advanced lithography process.
We couldn't decide between Atom E645C and Celeron 947UE. We've got no test results to judge.
Should you still have questions on choice between Atom E645C and Celeron 947UE, ask them in Comments section, and we shall answer.
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