Atom N450 vs Pentium 4405U
Aggregate performance score
Pentium 4405U outperforms Atom N450 by a whopping 923% based on our aggregate benchmark results.
Primary details
Comparing Pentium 4405U and Atom N450 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2262 | 3349 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Pentium | Intel Atom |
| Power efficiency | 8.39 | 2.05 |
| Architecture codename | Skylake (2015−2016) | Pinetrail (2009−2011) |
| Release date | 1 September 2015 (9 years ago) | 21 December 2009 (15 years ago) |
| Launch price (MSRP) | $161 | $64 |
Detailed specifications
Pentium 4405U and Atom N450 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 | 4 | 2 |
| Base clock speed | 2.1 GHz | 1.66 GHz |
| Boost clock speed | 2.1 GHz | 1.67 GHz |
| Bus type | OPI | no data |
| Bus rate | 4 GT/s | 533 MHz |
| Multiplier | 21 | no data |
| L1 cache | 128 KB | 56 KB (per core) |
| L2 cache | 512 KB | 512 KB (per core) |
| L3 cache | 2 MB | 0 KB |
| Chip lithography | 14 nm | 45 nm |
| Die size | 98.57 mm2 | 66 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| Number of transistors | 1750 Million | 123 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Pentium 4405U and Atom N450 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 | FCBGA1356 | FCBGA559 |
| Power consumption (TDP) | 15 Watt | 5.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium 4405U and Atom N450. 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 |
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| My WiFi | + | no data |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | + | + |
| Idle States | + | no data |
| Thermal Monitoring | + | + |
| Flex Memory Access | + | no data |
| Smart Response | + | no data |
| Demand Based Switching | no data | - |
Security technologies
Pentium 4405U and Atom N450 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
| Secure Key | + | no data |
| Identity Protection | + | - |
| SGX | Yes with Intel® ME | no data |
| OS Guard | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium 4405U and Atom N450 are enumerated here.
| AMD-V | + | - |
| VT-d | + | - |
| VT-x | + | - |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium 4405U and Atom N450. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3, DDR4 | DDR2 |
| Maximum memory size | 32 GB | 2 GB |
| Max memory channels | 2 | 1 |
| Maximum memory bandwidth | 34.134 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 510 | On certain motherboards (Chipset feature) |
| Max video memory | 32 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 950 MHz | no data |
Graphics interfaces
Available interfaces and connections of Pentium 4405U and Atom N450 integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| DVI | + | no data |
Graphics image quality
Maximum display resolutions supported by Pentium 4405U and Atom N450 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096x2304@24Hz | no data |
| Max resolution over eDP | 4096x2304@60Hz | no data |
| Max resolution over DisplayPort | 4096x2304@60Hz | no data |
| Max resolution over VGA | N/A | no data |
Graphics API support
APIs supported by Pentium 4405U and Atom N450 integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.4 | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium 4405U and Atom N450.
| PCIe version | 2.0 | no data |
| PCI Express lanes | 10 | 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 | 1.33 | 0.13 |
| Recency | 1 September 2015 | 21 December 2009 |
| Physical cores | 2 | 1 |
| Threads | 4 | 2 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 15 Watt | 5 Watt |
Pentium 4405U has a 923.1% higher aggregate performance score, an age advantage of 5 years, 100% more physical cores and 100% more threads, and a 221.4% more advanced lithography process.
Atom N450, on the other hand, has 200% lower power consumption.
The Pentium 4405U is our recommended choice as it beats the Atom N450 in performance tests.
Should you still have questions on choice between Pentium 4405U and Atom N450, 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.
