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Quantum Fiber vs. Xfinity: Which Internet Provider Is Better?

Compare internet speeds, pricing, reliability, customer reviews, and fees so you can choose the best internet provider for your home.

100% unbiased. Provider information updated regularly.
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Quantum Fiber Vs Xfinity

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4.3/5 CompareInternet Staff Rating
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3.9/5 CompareInternet Staff Rating
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4.3

Plans starting at: $50

Popular Package: Up to 1Gbps

Download speeds up to: 8 Gbps

Connection Types: Fiber

Call today & find the best Quantum Fiber internet deals
1-833-440-3323
3.9

Plans starting at: $45

Popular Package: 1 Gig

Download speeds up to: 2 Gbps

Connection Types: Cable

Call today & find the best Xfinity internet deals
1-833-440-3190

Quantum Fiber Provider Information

Quantum Fiber is the premium fiber-optic brand operated by Lumen Technologies, the same company behind CenturyLink. While CenturyLink focuses on legacy DSL and some fiber, Quantum Fiber represents their modern, high-speed push into pure fiber-to-the-home infrastructure. Because it uses fiber-optic cables rather than the older hybrid fiber-coaxial (HFC) internet used by many cable providers, you get symmetrical speeds. This means your upload speeds are just as fast as your download speeds, which is a massive advantage for video conferencing, cloud backups, and gaming.

Plans start at $50 for 500 Mbps and go up to $165 for 8000 Mbps. The service is available in select urban and suburban markets across the United States, though its footprint is still growing compared to older, more established cable networks. The provider excels at providing consistent, low-latency connections that rarely suffer from the congestion issues common during peak hours on cable lines. However, the biggest drawback is availability. If you live in an area where they have not yet laid fiber, you simply cannot get the service. Customer support can also feel impersonal, as the company leans heavily into a self-service, digital-first model. Quantum Fiber is the best fit for households that prioritize reliability and high upload speeds over everything else. If you have the option to get it, the jump from traditional cable or DSL to this fiber network is usually worth the switch for the stability alone.

Xfinity Provider Information

Xfinity is the residential internet brand of Comcast, the largest cable provider in the United States. They operate a massive network that covers a significant portion of the country, primarily using a hybrid fiber-coaxial (HFC) infrastructure. This setup delivers fast download speeds that are more than enough for most households, though upload speeds are typically much slower than what you would get with a dedicated fiber connection. Because they use existing cable lines, the service is widely available and generally reliable, though you might experience some congestion during peak evening hours.

Plans start at $45 for 300 Mbps, while their top-tier offerings go up to $100 for 2000 Mbps. This wide range of options makes Xfinity a solid choice for almost anyone, from casual browsers to power users who need high bandwidth. They do well with consistent performance and broad availability, but they often fall short when it comes to customer service reputation and the extra fees that can inflate your monthly bill. You should also be aware that they frequently enforce data caps in many regions, which can be a dealbreaker if you move a lot of data. Overall, Xfinity is a great fit for people who prioritize widespread availability and high download speeds, provided you are comfortable navigating their pricing structures and potential data limits.

PROS

Symmetrical fiber speeds No data caps or contracts Competitive cost-per-megabit value

Cons

Limited availability Some connections may be only FTTC Multi-gig plans not available in all service areas

PROS

Available in 41 states 5 year price guarantee Unlimited data 1 mobile line free for one year

Cons

Coaxial last mile trails all-fiber for the heaviest uploads Shared neighborhood capacity can slow peak-hour speeds for some users Mixed reviews, including mid-3s out of 5 on broadband comparison sites, 1–2 stars on Trustpilot and Yelp

Quantum Fiber Internet Plans

PlanService TypeDownload SpeedMonthly Price
Up To 8GbpsFiber InternetUp to 8,000 Mbps Only $165
*Offers and availability may vary by location and are subject to change.
Up To 3GbpsFiber InternetUp to 3,000 Mbps Only $70
*Offers and availability may vary by location and are subject to change. Read more
1Gig for $50/mo Limited availability. New customers only. Existing Quantum Fiber households ineligible
Up To 1Gbps Fiber InternetUp to 1,000 Mbps Only $50
*Offers and availability may vary by location and are subject to change.
Up To 500MbpsFiber InternetUp to 500 Mbps Only $50
*Offers and availability may vary by location and are subject to change.
Call today & find the best Quantum Fiber internet deals
1-833-440-3323

Xfinity Internet Plans

PlanService TypeDownload SpeedMonthly Price
1 GigCable InternetUp to 1,000 Mbps Only $60
*Offers and availability may vary by location and are subject to change.
500 MbpsCable InternetUp to 500 Mbps Only $50
*Offers and availability may vary by location and are subject to change.
300 MbpsCable InternetUp to 300 Mbps Only $45
*Offers and availability may vary by location and are subject to change.
2 GigCable InternetUp to 2,000 Mbps Only $100
*Offers and availability may vary by location and are subject to change.
Call today & find the best Xfinity internet deals
1-833-440-3190

Quantum Fiber FAQ's

Quantum Fiber is available in 18 states across the U.S., including Arizona, Colorado, Florida, Idaho, Iowa, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Carolina, Oregon, Tennessee, Texas, Utah, and Washington. To find out if Quantum Fiber is available at your address, enter your zip code here or call 1-833-440-3174.
Yes, Quantum Fiber allows you to connect multiple users and devices simultaneously. Whether it's for work, school, or entertainment purposes, you can connect and use multiple devices on the same internet connection.
Yes, Quantum Fiber provides Wi-Fi service. With Wi-Fi, you can enjoy wireless connectivity in your home, allowing you to connect your devices without the need for wired connections. The maximum internet speed available for Wi-Fi may vary depending on your location and your internet plan.
Quantum Fiber's benefits include matching upload and download speeds up to multi-gigabit levels, no data caps, and month-to-month service with no long-term commitments required. Additionally, setup and modem costs are included in your plan at no additional fee.
Yes, Quantum Fiber is excellent for gaming. Its symmetrical speeds and fiber-optic connection deliver low latency and stability for competitive online play. The unlimited data means you won't hit caps during gaming sessions or large game updates.
Plans start at $[prov-lopr nation="yes" provider="quantum-fiber"] for [prov-loprsp nation="yes" provider="quantum-fiber"] Mbps and go all the way up to $[prov-hipr nation="yes" provider="quantum-fiber"] for speeds of [prov-hiprsp nation="yes" provider="quantum-fiber"] Mbps.
Call today & find the best Quantum Fiber internet deals
1-833-440-3323

Xfinity FAQ's

No. All Xfinity internet plans are month-to-month, with no annual contract and no early termination fee. The 5-year price guarantee locks in your rate, not your commitment, so you can cancel anytime without a penalty.
Xfinity covers 41 states and Washington, D.C., but availability varies block by block. Enter your ZIP code on CompareInternet.com to check current plans, pricing, and promotions at your address.
Yes. Xfinity runs a fiber-rich, hybrid fiber-coaxial network, with fiber carrying traffic deep into each community and a coaxial line finishing the run to many homes.
Yes, in select markets. Where those plans are available, uploads and downloads match at speeds up to 2,000 Mbps. Since symmetrical service isn’t unique to fiber-to-the-home, it’s worth checking the exact upload tier offered at your address.
No. Every plan tier includes unlimited data with no caps or overage fees.
Yes. Self-installation is free and guided step by step through the Xfinity app, and many customers can get online the same day.
Call today & find the best Xfinity internet deals
1-833-440-3190