Atom N455 vs Core i7-8550U
Primary details
Comparing Core i7-8550U and Atom N455 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1372 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core i7 | Intel Atom |
| Architecture codename | Kaby Lake Refresh (2017−2019) | Pinetrail (2009−2010) |
| Release date | 21 August 2017 (6 years ago) | 1 May 2010 (14 years ago) |
| Launch price (MSRP) | $409 | $64 |
| Current price | $827 (2x MSRP) | $163 (2.5x MSRP) |
Detailed specifications
Core i7-8550U 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 | 4 (Quad-Core) | 1 (Single-Core) |
| Threads | 8 | 2 |
| Base clock speed | 1.8 GHz | 1.67 GHz |
| Boost clock speed | 4 GHz | 1.66 GHz |
| Bus support | no data | 533 MHz |
| L1 cache | 256 KB | 64 KB (per core) |
| L2 cache | 1 MB | 512 KB |
| L3 cache | 8 MB | 0 KB |
| Chip lithography | 14 nm | 45 nm |
| Die size | 123 mm2 | 66 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 123 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i7-8550U 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 (Uniprocessor) | 1 |
| Socket | BGA1356 | FCBGA559 |
| Power consumption (TDP) | 15 Watt | 6.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-8550U and Atom N455. You'll probably need this information if you require some particular technology.
| AES-NI | + | no data |
| AVX | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Hyper-Threading Technology | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-8550U and Atom N455 are enumerated here.
| AMD-V | + | no data |
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-8550U and Atom N455. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR3 |
| Maximum memory size | 32 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 38.397 GB/s | no data |
| ECC memory support | - | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel UHD Graphics 620 | Intel GMA 3150 |
Peripherals
Specifications and connection of peripherals supported by Core i7-8550U and Atom N455.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 12 | 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.
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.
Benchmark coverage: 68%
Core i7-8550U outperforms Atom N455 by 3070% in Passmark.
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.
Benchmark coverage: 42%
Core i7-8550U outperforms Atom N455 by 1496% in GeekBench 5 Single-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.
Benchmark coverage: 42%
Core i7-8550U outperforms Atom N455 by 3178% in GeekBench 5 Multi-Core.
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.
Benchmark coverage: 20%
Core i7-8550U outperforms Atom N455 by 1039% in Cinebench 10 32-bit single-core.
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.
Benchmark coverage: 19%
Core i7-8550U outperforms Atom N455 by 1907% in Cinebench 10 32-bit multi-core.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
Benchmark coverage: 19%
Core i7-8550U outperforms Atom N455 by 1093% in 3DMark06 CPU.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Benchmark coverage: 18%
Atom N455 outperforms Core i7-8550U by 1107% in wPrime 32.
Pros & cons summary
| Recency | 21 August 2017 | 1 May 2010 |
| Physical cores | 4 | 1 |
| Threads | 8 | 2 |
| Cost | $409 | $64 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 15 Watt | 6 Watt |
i7-8550U has an age advantage of 7 years, 300% more physical cores and 300% more threads, and a 221.4% more advanced lithography process.
Atom N455, on the other hand, has its recommended price lower by $345, and 150% lower power consumption.
We couldn't decide between Core i7-8550U and Atom N455. We've got no test results to judge.
Should you still have questions on choice between Core i7-8550U and Atom N455, ask them in Comments section, and we shall answer.
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