Fiber is faster, highly reliable, more durable, and great for cloud-based or real-time work. Cable is cheaper to install and more accessible but can get slower during busy hours due to shared bandwidth and asymmetrical speed. Right now, fiber internet has the fastest plans and symmetrical speeds, but that's probably going to change in the next several years as cable internet incorporates new technology enabling multi-gig symmetrical speeds. Plus, it's more widely available than fiber. Fiber supports ultra-fast speeds (~10 Gbps+) and has the capacity to. This guide compares fiber-optic cable and traditional copper internet cable (coaxial cable) across key factors: technology, speed, reliability, and cost in 2025. A fiber optic cable. Broadband vs. fiber is the decision most enterprises face when upgrading connectivity. General broadband uses DSL, cable, or satellite delivered over copper or coaxial networks. Fiber optic internet is a much more advanced type of broadband that moves data as light, which is a polite way of saying. Currently, two major broadband technologies dominate the market: traditional cable and lightning-fast fiber-optic networks. While they're all significantly faster than old-school dial-up internet, they have notable differences worth.