Atom N455 vs Celeron G1820
Aggregate performance score
Celeron G1820 outperforms Atom N455 by a whopping 800% based on our aggregate benchmark results.
Primary details
Comparing Celeron G1820 and Atom N455 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2408 | 3338 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.12 | no data |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Atom |
| Power efficiency | 1.89 | 1.62 |
| Architecture codename | Haswell (2013−2015) | Pinetrail (2009−2011) |
| Release date | 1 December 2013 (10 years ago) | 1 June 2010 (14 years ago) |
| Launch price (MSRP) | $110 | $64 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Celeron G1820 and Atom N455 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) | 1 (Single-Core) |
| Threads | 2 | 2 |
| Base clock speed | 2.7 GHz | 1.66 GHz |
| Boost clock speed | 2.7 GHz | 1.67 GHz |
| Bus rate | 5 GT/s | 533 MHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 512K (per core) |
| L3 cache | 2 MB | 0 KB |
| Chip lithography | 22 nm | 45 nm |
| Die size | 177 mm2 | 66 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | 1,400 million | 123 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Celeron G1820 and Atom N455 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 | FCLGA1150 | FCBGA559 |
| Power consumption (TDP) | 53 Watt | 6.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron G1820 and Atom N455. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | + |
| Idle States | + | no data |
| Thermal Monitoring | + | + |
| Demand Based Switching | no data | - |
Security technologies
Celeron G1820 and Atom N455 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
| Secure Key | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron G1820 and Atom N455 are enumerated here.
| VT-d | - | - |
| VT-x | + | - |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron G1820 and Atom N455. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 32 GB | 2 GB |
| Max memory channels | 2 | 1 |
| Maximum memory bandwidth | 21.3 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics for 4th Generation Intel Processors | Intel GMA 3150 |
| Max video memory | 1.7 GB | no data |
| Quick Sync Video | + | - |
| Graphics max frequency | 1.05 GHz | no data |
Graphics interfaces
Available interfaces and connections of Celeron G1820 and Atom N455 integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| DVI | + | no data |
| VGA | + | no data |
Graphics image quality
Maximum display resolutions supported by Celeron G1820 and Atom N455 integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 1920x1080@60Hz | no data |
| Max resolution over eDP | 2560x1600@60Hz | no data |
| Max resolution over DisplayPort | 2560x1600@60Hz | no data |
| Max resolution over VGA | 1920x1200@60Hz | no data |
Graphics API support
APIs supported by Celeron G1820 and Atom N455 integrated GPUs, sometimes API versions are included.
| DirectX | 11.1/12 | no data |
| OpenGL | 4.3 | no data |
Peripherals
Specifications and connection of peripherals supported by Celeron G1820 and Atom N455.
| PCIe version | Up to 3.0 | no data |
| PCI Express lanes | 16 | no data |
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.
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
| Performance score | 1.08 | 0.12 |
| Integrated graphics card | 0.77 | 0.01 |
| Recency | 1 December 2013 | 1 June 2010 |
| Physical cores | 2 | 1 |
| Chip lithography | 22 nm | 45 nm |
| Power consumption (TDP) | 53 Watt | 6 Watt |
Celeron G1820 has a 800% higher aggregate performance score, 7600% faster integrated GPU, an age advantage of 3 years, 100% more physical cores, and a 104.5% more advanced lithography process.
Atom N455, on the other hand, has 783.3% lower power consumption.
The Celeron G1820 is our recommended choice as it beats the Atom N455 in performance tests.
Note that Celeron G1820 is a desktop processor while Atom N455 is a notebook one.
Should you still have questions on choice between Celeron G1820 and Atom N455, ask them in Comments section, and we shall answer.
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