Fiber vs. Cable Internet: What's the Difference?

How Each Technology Works

Fiber internet transmits data as pulses of light through fiber-optic cable. It's immune to electromagnetic interference and delivers consistent speeds regardless of distance. Providers: AT&T Fiber, Frontier Fiber, Verizon Fios, EarthLink Fiber.

Cable internet uses coaxial cable built for TV service. Fast downloads but bandwidth is shared with neighbors — speeds can slow during peak hours. Providers: Comcast, Cox, WOW, Optimum.

The Upload Speed Gap Is the Real Differentiator

A cable plan advertised at "500 Mbps" typically delivers 500 Mbps download but only 20–35 Mbps upload. Fiber delivers the same speed in both directions. This matters for remote workers, content creators, and households with multiple people on video calls simultaneously.

When to Choose Fiber

• You work from home and rely on video conferencing
• Multiple people need simultaneous upload bandwidth
• You want consistent speeds even during peak evening hours
• Fiber is available at your address at a comparable price to cable

When Cable Is the Right Call

• Fiber is not available at your address
• Cable is significantly cheaper in your area and your usage is download-heavy
• You're in a low-congestion area where cable speeds stay consistent