Celeron 5205U vs Atom E645CT
Primary details
Comparing Atom E645CT and Celeron 5205U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 2527 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | no data | Intel Comet Lake |
| Power efficiency | no data | 5.65 |
| Architecture codename | Stellarton (2010) | Comet Lake-U (2019−2020) |
| Release date | 22 November 2010 (13 years ago) | 31 October 2019 (5 years ago) |
| Launch price (MSRP) | no data | $107 |
Detailed specifications
Atom E645CT and Celeron 5205U 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) | 2 (Dual-core) |
| Threads | 2 | 2 |
| Base clock speed | no data | 1.9 GHz |
| Boost clock speed | 1 GHz | 1.9 GHz |
| Bus rate | no data | 4 GT/s |
| L1 cache | 64 KB (per core) | 256 KB |
| L2 cache | 512 KB (per core) | 1 MB |
| L3 cache | 0 KB | 2 MB |
| Chip lithography | 45 nm | 14 nm |
| Die size | 26 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 47 million | no data |
| 64 bit support | - | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Atom E645CT and Celeron 5205U 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 | FCBGA1528 |
| Power consumption (TDP) | 4 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom E645CT and Celeron 5205U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | + | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
Security technologies
Atom E645CT and Celeron 5205U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Secure Key | no data | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom E645CT and Celeron 5205U are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom E645CT and Celeron 5205U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3, DDR4 |
| Maximum memory size | no data | 64 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 37.5 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel GMA 600 | Intel® UHD Graphics for 10th Gen Intel® Processors |
| Max video memory | no data | 32 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 900 MHz |
Graphics interfaces
Available interfaces and connections of Atom E645CT and Celeron 5205U integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| DVI | no data | + |
Graphics image quality
Maximum display resolutions supported by Atom E645CT and Celeron 5205U integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2304@24Hz |
| Max resolution over eDP | no data | 4096x2304@60Hz |
| Max resolution over DisplayPort | no data | 4096x2304@60Hz |
Graphics API support
APIs supported by Atom E645CT and Celeron 5205U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Atom E645CT and Celeron 5205U.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 12 |
Pros & cons summary
| Recency | 22 November 2010 | 31 October 2019 |
| Physical cores | 1 | 2 |
| Chip lithography | 45 nm | 14 nm |
| Power consumption (TDP) | 4 Watt | 15 Watt |
Atom E645CT has 275% lower power consumption.
Celeron 5205U, on the other hand, has an age advantage of 8 years, 100% more physical cores, and a 221.4% more advanced lithography process.
We couldn't decide between Atom E645CT and Celeron 5205U. We've got no test results to judge.
Should you still have questions on choice between Atom E645CT and Celeron 5205U, ask them in Comments section, and we shall answer.
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