Atom x7405C vs i5-520M
Aggregate performance score
Atom x7405C outperforms Core i5-520M by a whopping 233% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2659 | 1719 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.06 | no data |
| Market segment | Laptop | Laptop |
| Series | Intel Core i5 | no data |
| Power efficiency | 1.18 | 11.48 |
| Designer | Intel | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Arrandale (2010−2011) | Amston Lake (2024) |
| Release date | 7 January 2010 (15 years ago) | 8 April 2024 (1 year ago) |
| Launch price (MSRP) | $225 | $57 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Core i5-520M 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 | 2 (Dual-core) | 4 (Quad-Core) |
| Threads | 4 | 4 |
| Base clock speed | 2.4 GHz | 1.7 GHz |
| Boost clock speed | 2.93 GHz | 3.4 GHz |
| Bus type | DMI 1.0 | no data |
| Bus rate | 1 × 2.5 GT/s | no data |
| Multiplier | 18 | no data |
| L1 cache | 128 KB | 96 KB (per core) |
| L2 cache | 512 KB | 2 MB (shared) |
| L3 cache | 3 MB | 6 MB (shared) |
| Chip lithography | 32 nm | 10 nm |
| Die size | 81+114 mm2 | no data |
| Maximum core temperature | 105 °C | no data |
| Number of transistors | 382+177 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Core i5-520M 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 (Uniprocessor) | 1 |
| Socket | BGA1288,PGA988 | Intel BGA 1264 |
| Power consumption (TDP) | 35 Watt | 12 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-520M and Atom x7405C. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | no data |
| AES-NI | + | + |
| FMA | + | - |
| AVX | - | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | + | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| PAE | 36 Bit | no data |
| FDI | + | no data |
| Fast Memory Access | + | no data |
Security technologies
Core i5-520M and Atom x7405C technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-520M 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 i5-520M and Atom x7405C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-800, DDR3-1066 | DDR4, DDR5 |
| Maximum memory size | 8.3 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 17.051 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics for Previous Generation Intel Processors | N/A |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 766 MHz | no data |
Graphics interfaces
Available interfaces and connections of Core i5-520M and Atom x7405C integrated GPUs.
| Number of displays supported | 2 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i5-520M and Atom x7405C.
| PCIe version | 2.0 | 3.0 |
| PCI Express lanes | 16 | 9 |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 0.98 | 3.26 |
| Recency | 7 January 2010 | 8 April 2024 |
| Physical cores | 2 | 4 |
| Chip lithography | 32 nm | 10 nm |
| Power consumption (TDP) | 35 Watt | 12 Watt |
Atom x7405C has a 232.7% higher aggregate performance score, an age advantage of 14 years, 100% more physical cores, a 220% more advanced lithography process, and 191.7% lower power consumption.
The Intel Atom x7405C is our recommended choice as it beats the Intel Core i5-520M in performance tests.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
