It's a Cascade of 14nm CPUs: AnandTech's Intel Core i9-10980XE

Core i9-10980XE Performance Review - Intel Has Left The Chat

Intel Core i9-10980XE Review: 18-Core Cascade Lake-X Battles AMD

Intel Core i9-10980XE 18 Core Cascade Lake-X CPU Benchmarks Leak

Intel Core i9 10980XE (Cascade Lake-X) Processor Review

Intel Core - Wikipedia

Intel Core i9-10980XE Review: Better Than AMD's Ryzen 9 3950X

Intel Core i9-10980XE: 5 GHz on 18 cores

Intel Core i9-10980XE Review: 18-Core Cascade Lake-X Battles AMD

CPU Performance: Web and Legacy Tests - It's a Cascade of 14nm