Atom x7405C vs Ryzen 9 7840HX
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 1850 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Dragon Range (Zen 4, Ryzen 7045) | no data |
| Power efficiency | no data | 26.45 |
| Designer | AMD | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Dragon Range-HX (Zen 4) (2023−2024) | Amston Lake (2024−2025) |
| Release date | 17 January 2024 (1 year ago) | 8 April 2024 (1 year ago) |
| Launch price (MSRP) | no data | $57 |
Detailed specifications
Ryzen 9 7840HX 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 | 12 (Dodeca-Core) | 4 (Quad-Core) |
| Threads | 24 | 4 |
| Base clock speed | 2.9 GHz | 1.7 GHz |
| Boost clock speed | 5.1 GHz | 3.4 GHz |
| L1 cache | 768 KB | 96 KB (per core) |
| L2 cache | 12 MB | 2 MB (shared) |
| L3 cache | 64 MB | 6 MB (shared) |
| Chip lithography | 5 nm | 10 nm |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | 9900 Million | no data |
| 64 bit support | + | + |
Compatibility
Information on Ryzen 9 7840HX 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 | no data | 1 |
| Socket | FL1 | Intel BGA 1264 |
| Power consumption (TDP) | 12 MB + 64 MB | 12 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 7840HX and Atom x7405C. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | no data |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 7840HX and Atom x7405C are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7840HX and Atom x7405C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR4, DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 610M (400 - 2200 MHz) | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 7840HX and Atom x7405C.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 9 |
Pros & cons summary
| Recency | 17 January 2024 | 8 April 2024 |
| Physical cores | 12 | 4 |
| Threads | 24 | 4 |
| Chip lithography | 5 nm | 10 nm |
Ryzen 9 7840HX has 200% more physical cores and 500% more threads, and a 100% more advanced lithography process.
Atom x7405C, on the other hand, has an age advantage of 2 months.
We couldn't decide between AMD Ryzen 9 7840HX and Intel Atom x7405C. We've got no test results to judge.
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