Atom x7405C vs i9-12900K
Primary details
Comparing Core i9-12900K and Atom x7405C processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 191 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 37.30 | no data |
| Market segment | Desktop processor | Laptop |
| Series | Intel Core i9 | no data |
| Power efficiency | 19.75 | no data |
| Architecture codename | Alder Lake, Golden Cove, Gracemont (2021) | Amston Lake (2024) |
| Release date | 27 October 2021 (3 years ago) | 8 April 2024 (less than a year ago) |
| Launch price (MSRP) | $589 | $57 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i9-12900K 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 | 16 (Hexadeca-Core) | 4 (Quad-Core) |
| Threads | 24 | 4 |
| Base clock speed | 3.2 GHz | 1.7 GHz |
| Boost clock speed | 5.2 GHz | 3.4 GHz |
| Bus type | DMI 4.0 | no data |
| Bus rate | 8 × 16 GT/s | no data |
| Multiplier | 32 | no data |
| L1 cache | 768 KB | 96 KB (per core) |
| L2 cache | 4 MB | 2 MB (shared) |
| L3 cache | 6 MB | 6 MB (shared) |
| Chip lithography | 10 nm | 10 nm |
| Die size | 215.25 mm2" | no data |
| Maximum core temperature | 100 °C | no data |
| Maximum case temperature (TCase) | 72 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-12900K 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 | FCLGA1700 | Intel BGA 1264 |
| Power consumption (TDP) | 125 Watt | 12 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-12900K and Atom x7405C. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| SIPP | + | - |
| Turbo Boost Max 3.0 | + | no data |
| Deep Learning Boost | + | - |
Security technologies
Core i9-12900K and Atom x7405C technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-12900K and Atom x7405C are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-12900K and Atom x7405C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, DDR5 | DDR4, DDR5 |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 76.805 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics 770 | N/A |
| Quick Sync Video | + | - |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.55 GHz | no data |
| Execution Units | 32 | no data |
Graphics interfaces
Available interfaces and connections of Core i9-12900K and Atom x7405C integrated GPUs.
| Number of displays supported | 4 | no data |
Graphics image quality
Maximum display resolutions supported by Core i9-12900K and Atom x7405C integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 4096 x 2160 @ 60Hz | no data |
| Max resolution over eDP | 5120 x 3200 @ 120Hz | no data |
| Max resolution over DisplayPort | 7680 x 4320 @ 60Hz | no data |
Graphics API support
APIs supported by Core i9-12900K and Atom x7405C integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.5 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i9-12900K and Atom x7405C.
| PCIe version | 5.0 and 4.0 | 3.0 |
| PCI Express lanes | 20 | 9 |
Pros & cons summary
| Recency | 27 October 2021 | 8 April 2024 |
| Physical cores | 16 | 4 |
| Threads | 24 | 4 |
| Power consumption (TDP) | 125 Watt | 12 Watt |
i9-12900K has 300% more physical cores and 500% more threads.
Atom x7405C, on the other hand, has an age advantage of 2 years, and 941.7% lower power consumption.
We couldn't decide between Core i9-12900K and Atom x7405C. We've got no test results to judge.
Note that Core i9-12900K is a desktop processor while Atom x7405C is a notebook one.
Should you still have questions on choice between Core i9-12900K and Atom x7405C, ask them in Comments section, and we shall answer.
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