score:7
Actual regulation:
You can bring in other goods worth up to Β£390 (or up to Β£270 if you arrive by private plane or boat).
If a single itemβs worth more than your allowance you pay any duty or tax on its full value, not just the value above the allowance.
Examples: In 2017 summer, this is about 500 USD. The post title asked about Intel CPUs. Consumer CPUs, even the i7 7700K are definitely below. Some enthusiast CPUs are sold right at or below this limit, like the i7 7800X is ~$540 at Newegg but around $400 at Amazon and $420 at BHP. Shop carefully to stay under the limit. (Footnote: consider the Ryzen 1800X as well.)
Upvote:0
You should also check if the US has any export restrictions for the parts you want to bring. I don't think there will be, since you're just talking about common consumer parts, but it's still possible that they fall under some definition for a restricted item.