Atom x7405C vs Ryzen 9 7940H
Primary details
Comparing Ryzen 9 7940H and Atom x7405C processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 334 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Power efficiency | 48.80 | no data |
| Architecture codename | Phoenix (2023−2024) | Amston Lake (2024) |
| Release date | January 2023 (1 year ago) | 8 April 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $57 |
Detailed specifications
Ryzen 9 7940H 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 | 8 (Octa-Core) | 4 (Quad-Core) |
| Threads | 16 | 4 |
| Base clock speed | 4 GHz | 1.7 GHz |
| Boost clock speed | 5.2 GHz | 3.4 GHz |
| L1 cache | 64K (per core) | 96 KB (per core) |
| L2 cache | 1 MB (per core) | 2 MB (shared) |
| L3 cache | 16 MB (shared) | 6 MB (shared) |
| Chip lithography | 4 nm | 10 nm |
| Die size | 178 mm2 | no data |
| Number of transistors | 25,000 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Ryzen 9 7940H 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 | 1 |
| Socket | FP8 | Intel BGA 1264 |
| Power consumption (TDP) | 35 Watt | 12 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 7940H and Atom x7405C. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 7940H and Atom x7405C are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7940H and Atom x7405C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-5600 | DDR4, DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 780M | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 7940H and Atom x7405C.
| PCIe version | 4.0 | 3.0 |
| PCI Express lanes | 20 | 9 |
Pros & cons summary
| Physical cores | 8 | 4 |
| Threads | 16 | 4 |
| Chip lithography | 4 nm | 10 nm |
| Power consumption (TDP) | 35 Watt | 12 Watt |
Ryzen 9 7940H has 100% more physical cores and 300% more threads, and a 150% more advanced lithography process.
Atom x7405C, on the other hand, has 191.7% lower power consumption.
We couldn't decide between Ryzen 9 7940H and Atom x7405C. We've got no test results to judge.
Should you still have questions on choice between Ryzen 9 7940H and Atom x7405C, ask them in Comments section, and we shall answer.
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