SEO is dead. You will waste your money to just buy laptop for SEO purpose. Better invest in shares and use this tool - https://www.advisorkhoj.com/tools-and-calculators/lumpsum-calculator
Get a Ryzen CPU in any case and get the best bang for your buck!!! I purchased the Ryzen 7 3800x recently and takes all I can throw at it, probably abit other the top for just SEO though. Can pick up the barebone bundles from novatech for around £200
i would advice for a dell inspiron 5548, 8gb of RAM, intel core i5-5200U cpu @ 2.2 ghz(4 cpus) , a touch screen, comes with a version of windows 10 and for these specs the cheapest
The Acer Aspire 5 is a great powerful laptop because it has the most powerful processor AMD Ryzen 5 3000-Series and video card AMD Radeon Vega 8. It will suit any needs starting from working and studying and up to playing light games. I think you should look at articles about laptops under $600. They are enough for SEO working.
For SEO, I would like to recommend you get a laptop with at least an Intel Core i5 or AMD Ryzen 5 processor, 8GB of RAM, and an SSD for faster data access. Choose between Windows or macOS based on your software needs. You can also look for a laptop with a long battery life for remote work and sufficient USB ports for connectivity. Higher specifications might be necessary for more demanding design tasks, so consider your specific needs and budget when making a choice.