The quick answer
Choose fiber when it’s available. Its uploads match downloads (cable uploads are typically 20–250 Mbps against multi-hundred downloads), latency runs 1–5 ms vs cable’s 10–30 ms, and it doesn’t slow at peak hours. Choose cable when fiber hasn’t reached your street, when a $25–$30 first-year promo matters most, or when the local fiber option is a slow legacy tier.
Head to head
| Fiber | Cable | |
|---|---|---|
| Downloads | 100 Mbps – 10 Gbps | 100 Mbps – 2 Gbps |
| Uploads | Symmetrical (match downloads) | Typically 20–250 Mbps |
| Latency | 1–5 ms | 10–30 ms |
| Peak-hour behavior | Stable | Can dip on shared nodes |
| U.S. availability (FCC ZIPs) | 27,013 | 23,065 |
| Entry pricing (2026) | $20–$50 | Promos from about $25 |
| Price behavior | Varies: flat at Google Fiber, a 12-month promo at AT&T, a price guarantee at Frontier | Promo, then the standard rate |
When cable is genuinely the right call
- Fiber isn’t built to your address yet — cable’s 1–2 Gbps beats waiting.
- You optimize year-one cost — $25–$30 cable promos undercut most fiber entries.
- You mostly download (streaming, browsing) — cable’s asymmetry doesn’t hurt you.
- Bundled TV matters — cable operators still price bundles aggressively.
Compare both at your address
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Frequently asked questions
Is fiber really better than cable?
For anything involving uploads — video calls, cloud backup, streaming yourself, working from home — decisively yes: fiber uploads match downloads while cable uploads sit at 20–250 Mbps. For pure downloading, good cable and fiber feel similar day to day.
Is fiber more expensive than cable?
Not anymore. Fiber entries run about $20–$50 (Ziply $20, Frontier $29.99, Fidium $30, AT&T $50) versus cable promos from about $25 — and some fiber providers price flat or guarantee the rate for years, while most cable promos step up after year one. Compare the two-year cost, not the teaser.
How do I know if my address has fiber?
Enter your ZIP in our search — we list every FCC-filed provider by technology, fiber first. Per Dec-2024 filings, at least one fiber provider now reaches 27,013 of 31,409 U.S. ZIP codes, though street-level buildout varies inside each ZIP.
Keep reading
Sources: FCC Broadband Data Collection (Dec 2024 vintage) for coverage — broadbandmap.fcc.gov; provider and industry pricing sources. Pricing is indicative promotional or entry-rate pricing, varies by address and changes often; we confirm it on the call for the providers we sell, and for the rest, confirm with the provider.