Atom D2550 vs Core i5-2550K
Primary details
Comparing Core i5-2550K and Atom D2550 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1628 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.65 | no data |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Atom |
| Architecture codename | Sandy Bridge (2011−2013) | Cedarview (2011−2012) |
| Release date | January 2012 (12 years ago) | 1 November 2011 (12 years ago) |
| Launch price (MSRP) | $189 | no data |
| Current price | $101 (0.5x MSRP) | $543 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i5-2550K and Atom D2550 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 | 4 (Quad-Core) | 2 (Dual-core) |
| Threads | 4 | 4 |
| Base clock speed | 3.4 GHz | 1.86 GHz |
| Boost clock speed | 3.8 GHz | 1.87 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 512K (per core) |
| L3 cache | 6144 KB (shared) | 0 KB |
| Chip lithography | 32 nm | 32 nm |
| Die size | 216 mm2 | 66 mm2 |
| Maximum core temperature | 73 °C | 100 °C |
| Number of transistors | 1160 million | 176 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | Yes | No |
Compatibility
Information on Core i5-2550K and Atom D2550 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 | FCLGA1155,LGA1155 | FCBGA559 |
| Power consumption (TDP) | 95 Watt | 10 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-2550K and Atom D2550. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| AES-NI | + | no data |
| AVX | + | no data |
| Enhanced SpeedStep (EIST) | + | - |
| Turbo Boost Technology | 2.0 | - |
| Hyper-Threading Technology | - | + |
| Idle States | + | no data |
| Thermal Monitoring | + | no data |
| Flex Memory Access | + | no data |
| PAE | no data | 36 Bit |
| FDI | - | no data |
| Fast Memory Access | + | no data |
| Status | Discontinued | Discontinued |
Security technologies
Core i5-2550K and Atom D2550 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
| Identity Protection | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-2550K and Atom D2550 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 Core i5-2550K and Atom D2550. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 32 GB | 4 GB |
| Max memory channels | 2 | 1 |
| Maximum memory bandwidth | 21 GB/s | 6.4 GB/s |
| ECC memory support | - | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel Graphics Media Accelerator (GMA) 3650 |
| Quick Sync Video | + | no data |
Graphics interfaces
Available interfaces and connections of Core i5-2550K and Atom D2550 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Core i5-2550K and Atom D2550.
| PCIe version | 2.0 | no data |
| PCI Express lanes | 16 | 4 |
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.
Benchmark coverage: 68%
Core i5-2550K outperforms Atom D2550 by 911% in Passmark.
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.
Benchmark coverage: 42%
Core i5-2550K outperforms Atom D2550 by 583% in GeekBench 5 Single-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.
Benchmark coverage: 42%
Core i5-2550K outperforms Atom D2550 by 614% in GeekBench 5 Multi-Core.
Pros & cons summary
| Physical cores | 4 | 2 |
| Power consumption (TDP) | 95 Watt | 10 Watt |
We couldn't decide between Core i5-2550K and Atom D2550. We've got no test results to judge.
Note that Core i5-2550K is a desktop processor while Atom D2550 is a notebook one.
Should you still have questions on choice between Core i5-2550K and Atom D2550, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
