Celeron 4205U vs Atom Z520
Aggregate performance score
Celeron 4205U outperforms Atom Z520 by a whopping 963% based on our aggregate benchmark results.
Primary details
Comparing Atom Z520 and Celeron 4205U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3404 | 2575 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Atom | Intel Celeron |
| Power efficiency | 3.81 | 5.39 |
| Architecture codename | Silverthorne (2008−2010) | Whiskey Lake-U (2018−2019) |
| Release date | 2 April 2008 (16 years ago) | 23 January 2019 (5 years ago) |
| Launch price (MSRP) | $65 | $107 |
Detailed specifications
Atom Z520 and Celeron 4205U 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) | 2 (Dual-core) |
| Threads | 2 | 2 |
| Base clock speed | 1.33 GHz | no data |
| Boost clock speed | 0.03 GHz | 1.8 GHz |
| Bus type | FSB | OPI |
| Bus rate | 533.33 MT/s | 4 GT/s |
| Multiplier | 10 | 18 |
| L1 cache | 56 KB | 64 KB (per core) |
| L2 cache | 512 KB | 256 KB (per core) |
| L3 cache | 0 KB | 2 MB (shared) |
| Chip lithography | 45 nm | 10 nm |
| Die size | 24.18 mm2 | no data |
| 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 Z520 and Celeron 4205U 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 (Uniprocessor) |
| Socket | PBGA441 | Intel BGA 1528 |
| Power consumption (TDP) | 2 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom Z520 and Celeron 4205U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE2, Intel® SSE3, Intel® SSSE3 | no data |
| AES-NI | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | + | no data |
| FSB parity | - | no data |
Security technologies
Atom Z520 and Celeron 4205U 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 Atom Z520 and Celeron 4205U are enumerated here.
| VT-d | - | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom Z520 and Celeron 4205U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR3, DDR4 |
| Maximum memory size | no data | 32 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 38.397 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | - | Intel HD Graphics 610 (300 - 900 MHz) |
Peripherals
Specifications and connection of peripherals supported by Atom Z520 and Celeron 4205U.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 12 |
Synthetic benchmark performance
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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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
| Performance score | 0.08 | 0.85 |
| Recency | 2 April 2008 | 23 January 2019 |
| Physical cores | 1 | 2 |
| Chip lithography | 45 nm | 10 nm |
| Power consumption (TDP) | 2 Watt | 15 Watt |
Atom Z520 has 650% lower power consumption.
Celeron 4205U, on the other hand, has a 962.5% higher aggregate performance score, an age advantage of 10 years, 100% more physical cores, and a 350% more advanced lithography process.
The Celeron 4205U is our recommended choice as it beats the Atom Z520 in performance tests.
Should you still have questions on choice between Atom Z520 and Celeron 4205U, ask them in Comments section, and we shall answer.
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