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Nov 1, 2026 · Fundamentals

Hyper-Threading: Why 2 Cores Can Act Like 4 Threads

This article explains Intel's Hyper-Threading technology, which virtualizes each physical CPU core into two logical threads to utilize idle execution units, typically boosting performance by 15-30% in multitasking and parallel workloads, while noting trade-offs like increased power consumption, heat, and security vulnerabilities such as CVE-2018-3620.