i5-12400 vs Atom Z540
Primary details
Comparing Atom Z540 and Core i5-12400 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 625 |
| Place by popularity | not in top-100 | 61 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Atom | no data |
| Power efficiency | no data | 17.75 |
| Architecture codename | Silverthorne (2008−2010) | Alder Lake-S (2022) |
| Release date | 2 April 2008 (16 years ago) | 4 January 2022 (2 years ago) |
| Launch price (MSRP) | $160 | no data |
Detailed specifications
Atom Z540 and Core i5-12400 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) | 6 (Hexa-Core) |
| Threads | 2 | 12 |
| Base clock speed | 1.86 GHz | 2.5 GHz |
| Boost clock speed | 0.07 GHz | 4.4 GHz |
| Bus type | FSB | no data |
| Bus rate | 533.33 MT/s | no data |
| Multiplier | 14 | no data |
| L1 cache | 56 KB | 80K (per core) |
| L2 cache | 512 KB | 1.25 MB (per core) |
| L3 cache | 0 KB | 18 MB (shared) |
| Chip lithography | 45 nm | Intel 7 nm |
| Die size | 24.18 mm2 | 163 mm2 |
| Maximum core temperature | 90 °C | 100 °C |
| Number of transistors | 47 Million | no data |
| 64 bit support | - | + |
| Windows 11 compatibility | - | + |
| VID voltage range | 0.75 -1.1V | no data |
Compatibility
Information on Atom Z540 and Core i5-12400 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 | PBGA441 | FCLGA1700 |
| Power consumption (TDP) | 2.4 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom Z540 and Core i5-12400. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE2, Intel® SSE3, Intel® SSSE3 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | - | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Demand Based Switching | + | no data |
| Turbo Boost Max 3.0 | no data | - |
| FSB parity | - | no data |
| Deep Learning Boost | - | + |
Security technologies
Atom Z540 and Core i5-12400 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom Z540 and Core i5-12400 are enumerated here.
| VT-d | - | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom Z540 and Core i5-12400. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5-4800, DDR4-3200 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 76.8 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | - | Intel UHD Graphics 730 |
| Quick Sync Video | - | + |
| Clear Video HD | - | + |
| Graphics max frequency | - | 1.45 GHz |
| Execution Units | - | 24 |
Graphics interfaces
Available interfaces and connections of Atom Z540 and Core i5-12400 integrated GPUs.
| Number of displays supported | - | 4 |
Graphics image quality
Maximum display resolutions supported by Atom Z540 and Core i5-12400 integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | - | 4096 x 2160 @ 60Hz |
| Max resolution over eDP | - | 5120 x 3200 @ 120Hz |
| Max resolution over DisplayPort | - | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Atom Z540 and Core i5-12400 integrated GPUs, sometimes API versions are included.
| DirectX | - | 12 |
| OpenGL | - | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Atom Z540 and Core i5-12400.
| PCIe version | no data | 5.0 and 4.0 |
| PCI Express lanes | no data | 20 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Recency | 2 April 2008 | 4 January 2022 |
| Physical cores | 1 | 6 |
| Threads | 2 | 12 |
| Power consumption (TDP) | 2 Watt | 65 Watt |
Atom Z540 has 3150% lower power consumption.
i5-12400, on the other hand, has an age advantage of 13 years, and 500% more physical cores and 500% more threads.
We couldn't decide between Atom Z540 and Core i5-12400. We've got no test results to judge.
Be aware that Atom Z540 is a notebook processor while Core i5-12400 is a desktop one.
Should you still have questions on choice between Atom Z540 and Core i5-12400, ask them in Comments section, and we shall answer.
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