i5-11400H vs Atom D2550
Primary details
Comparing Atom D2550 and Core i5-11400H processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 779 |
| Place by popularity | not in top-100 | 35 |
| Market segment | Laptop | Laptop |
| Series | Intel Atom | Tiger Lake |
| Power efficiency | no data | 26.58 |
| Architecture codename | Cedarview (2011−2012) | Tiger Lake-H (2021) |
| Release date | 1 November 2011 (13 years ago) | 11 May 2021 (3 years ago) |
Detailed specifications
Atom D2550 and Core i5-11400H 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 | 2 (Dual-core) | 6 (Hexa-Core) |
| Threads | 4 | 12 |
| Base clock speed | 1.86 GHz | 2.7 GHz |
| Boost clock speed | 1.87 GHz | 4.5 GHz |
| Bus rate | no data | 8 GT/s |
| L1 cache | 64 KB (per core) | 96K (per core) |
| L2 cache | 512K (per core) | 1.25 MB (per core) |
| L3 cache | 0 KB | 12 MB (shared) |
| Chip lithography | 32 nm | 10 nm SuperFin |
| Die size | 66 mm2 | no data |
| Maximum core temperature | 100 °C | 100 °C |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | 176 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Atom D2550 and Core i5-11400H 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 | FCBGA559 | FCBGA1787 |
| Power consumption (TDP) | 10 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom D2550 and Core i5-11400H. 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, Intel® AVX-512 |
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | - | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | + | + |
| TSX | - | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| PAE | 36 Bit | no data |
| Deep Learning Boost | - | + |
Security technologies
Atom D2550 and Core i5-11400H technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| Secure Key | no data | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom D2550 and Core i5-11400H are enumerated here.
| VT-d | - | + |
| VT-x | - | + |
| VT-i | - | no data |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom D2550 and Core i5-11400H. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4 |
| Maximum memory size | 4 GB | 128 GB |
| Max memory channels | 1 | 2 |
| Maximum memory bandwidth | 6.4 GB/s | 51.2 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Graphics Media Accelerator (GMA) 3650 | Intel® UHD Graphics for 11th Gen Intel® Processors |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 1.45 GHz |
| Execution Units | no data | 16 |
Graphics interfaces
Available interfaces and connections of Atom D2550 and Core i5-11400H integrated GPUs.
| Number of displays supported | 2 | 4 |
Graphics image quality
Maximum display resolutions supported by Atom D2550 and Core i5-11400H integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096x2304@60Hz |
| Max resolution over eDP | no data | 4096x2304@60Hz |
| Max resolution over DisplayPort | no data | 7680x4320@60Hz |
Graphics API support
APIs supported by Atom D2550 and Core i5-11400H integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12.1 |
| OpenGL | no data | 4.6 |
Peripherals
Specifications and connection of peripherals supported by Atom D2550 and Core i5-11400H.
| PCIe version | no data | 4.0 |
| PCI Express lanes | 4 | 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.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Recency | 1 November 2011 | 11 May 2021 |
| Physical cores | 2 | 6 |
| Threads | 4 | 12 |
| Chip lithography | 32 nm | 10 nm |
| Power consumption (TDP) | 10 Watt | 35 Watt |
Atom D2550 has 250% lower power consumption.
i5-11400H, on the other hand, has an age advantage of 9 years, 200% more physical cores and 200% more threads, and a 220% more advanced lithography process.
We couldn't decide between Atom D2550 and Core i5-11400H. We've got no test results to judge.
Should you still have questions on choice between Atom D2550 and Core i5-11400H, ask them in Comments section, and we shall answer.
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