Atom x7405C vs x5-E3940
Primary details
Comparing Atom x5-E3940 and Atom x7405C processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2307 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | 5x Intel Atom | no data |
| Power efficiency | 11.64 | no data |
| Architecture codename | Apollo Lake (2014−2016) | Amston Lake (2024) |
| Release date | 30 August 2014 (10 years ago) | 8 April 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $57 |
Detailed specifications
Atom x5-E3940 and Atom x7405C 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 | 4 (Quad-Core) | 4 (Quad-Core) |
| Threads | 4 | 4 |
| Base clock speed | 1.6 GHz | 1.7 GHz |
| Boost clock speed | 1.8 GHz | 3.4 GHz |
| L1 cache | 56K (per core) | 96 KB (per core) |
| L2 cache | 2 MB (shared) | 2 MB (shared) |
| L3 cache | 0 KB | 6 MB (shared) |
| Chip lithography | 14 nm | 10 nm |
| Maximum case temperature (TCase) | 103 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Atom x5-E3940 and Atom x7405C 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 (Uniprocessor) | 1 |
| Socket | Intel BGA 1296 | Intel BGA 1264 |
| Power consumption (TDP) | 10 Watt | 12 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom x5-E3940 and Atom x7405C. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
Security technologies
Atom x5-E3940 and Atom x7405C technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom x5-E3940 and Atom x7405C are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom x5-E3940 and Atom x7405C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | DDR4, DDR5 |
| Maximum memory size | 8 GB | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 500 | N/A |
Peripherals
Specifications and connection of peripherals supported by Atom x5-E3940 and Atom x7405C.
| PCIe version | 2.0 | 3.0 |
| PCI Express lanes | 4 | 9 |
Pros & cons summary
| Recency | 30 August 2014 | 8 April 2024 |
| Chip lithography | 14 nm | 10 nm |
| Power consumption (TDP) | 10 Watt | 12 Watt |
Atom x5-E3940 has 20% lower power consumption.
Atom x7405C, on the other hand, has an age advantage of 9 years, and a 40% more advanced lithography process.
We couldn't decide between Atom x5-E3940 and Atom x7405C. We've got no test results to judge.
Should you still have questions on choice between Atom x5-E3940 and Atom x7405C, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
