Ryzen 5 7645HX vs Atom N455
Aggregate performance score
Ryzen 5 7645HX outperforms Atom N455 by a whopping 13355% 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 | 3642 | 535 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Atom | no data |
| Power efficiency | no data | 35.24 |
| Designer | Intel | AMD |
| Manufacturer | Intel | TSMC |
| Architecture codename | Pinetrail (2009−2011) | Dragon Range (Zen4) (2023) |
| Release date | 1 June 2010 (15 years ago) | 4 January 2023 (2 years ago) |
| Launch price (MSRP) | $64 | no data |
Detailed specifications
Atom N455 and Ryzen 5 7645HX 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) | 6 (Hexa-Core) |
| Threads | 2 | 12 |
| Base clock speed | 1.66 GHz | 4 GHz |
| Boost clock speed | 1.67 GHz | 5 GHz |
| Bus rate | 533 MHz | no data |
| L1 cache | 64 KB (per core) | 64K (per core) |
| L2 cache | 512K (per core) | 1 MB (per core) |
| L3 cache | 0 KB | 32 MB (shared) |
| Chip lithography | 45 nm | 5 nm |
| Die size | 66 mm2 | 71 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| Number of transistors | 123 million | 6570 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Atom N455 and Ryzen 5 7645HX 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 | FCBGA559 | FL1 |
| Power consumption (TDP) | 6.5 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom N455 and Ryzen 5 7645HX. 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 | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | no data |
| Precision Boost 2 | no data | + |
Security technologies
Atom N455 and Ryzen 5 7645HX 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 N455 and Ryzen 5 7645HX are enumerated here.
| AMD-V | - | + |
| VT-d | - | no data |
| VT-x | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom N455 and Ryzen 5 7645HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5-5200 |
| Maximum memory size | 2 GB | no data |
| Max memory channels | 1 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel GMA 3150 | AMD Radeon 610M (400 - 2200 MHz) |
Peripherals
Specifications and connection of peripherals supported by Atom N455 and Ryzen 5 7645HX.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 28 |
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.
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.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
Pros & cons summary
| Performance score | 0.11 | 14.80 |
| Recency | 1 June 2010 | 4 January 2023 |
| Physical cores | 1 | 6 |
| Threads | 2 | 12 |
| Chip lithography | 45 nm | 5 nm |
| Power consumption (TDP) | 6 Watt | 45 Watt |
Atom N455 has 650% lower power consumption.
Ryzen 5 7645HX, on the other hand, has a 13354.5% higher aggregate performance score, an age advantage of 12 years, 500% more physical cores and 500% more threads, and a 800% more advanced lithography process.
The AMD Ryzen 5 7645HX is our recommended choice as it beats the Intel Atom N455 in performance tests.
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