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Quantum Fiber vs Xfinity in Arvada
Quantum Fiber’s cheaper, symmetrical fiber only reaches about 47% of Arvada, so the real question is whether it’s wired to your block or if Xfinity’s near-citywide cable wins by default.
Quantum Fiber wins on raw performance and price, offering symmetrical speeds up to 8,000 Mbps for $30/mo and a 99/100 speed score. The catch is reach: it covers only about 47% of Arvada, while Xfinity’s cable network hits roughly 95% of the city for $40/mo. If Quantum Fiber’s fiber reaches your address, it’s the easy pick for speed and value. If it doesn’t, Xfinity is the reliable, widely available fallback that still posts a strong 95/100 speed score.
At a glance
Quantum Fiber vs. Xfinity, side by side.
| Provider | Type | Top speed | City coverage | Starting price | Best for |
|---|---|---|---|---|---|
| Quantum Fiber |
Fiber | 8 Gig 8 Gig upload |
47% | $30/mo | Top fiber speeds |
| Xfinity |
Cable | 2 Gig 300 Mbps upload |
95% | $40/mo | Widest availability |
Coverage map
Two different questions, two views. Top speed shows who offers the faster plan where you can actually get it. Coverage shows who reaches more of each ZIP. Or pick a single provider to see just its footprint.
Neighborhood breakdown
The winner in Arvada often comes down to your exact block. Quantum Fiber’s roughly 47% footprint means some streets have fiber while nearby ones don’t, whereas Xfinity’s ~95% coverage is close to universal citywide. Always run an address check before deciding, since the head-to-head can flip from one street to the next.
| ZIP | Neighborhoods | Coverage | Top speed | Speed Score | Winner | |||
|---|---|---|---|---|---|---|---|---|
| Quantum Fiber | Xfinity | Quantum Fiber | Xfinity | Quantum Fiber | Xfinity | |||
| 80005 | Lake Arbor, Club Crest, Sierra Vista, Meadowglen | 18% | 95% | 8 Gig | 2 Gig | 83 | 95 | Xfinity |
| 80003 | Northwest Arvada, Lake Arbor, Scenic Heights, Woodland Valley | 78% | 100% | 8 Gig | 2 Gig | 95 | 96 | Xfinity |
| 80002 | Olde Town Arvada, Lamar Heights, Arvada Plaza, Ralston Valley | 55% | 97% | 8 Gig | 2 Gig | 90 | 95 | Xfinity |
| 80004 | Alta Vista, Ralston Estates, Allendale, Maple Valley | 52% | 99% | 8 Gig | 2 Gig | 90 | 96 | Xfinity |
| 80007 | Leyden Rock, Candelas, West Woods, Whisper Creek | 24% | 86% | 8 Gig | 2 Gig | 84 | 93 | Xfinity |
| 80001 | Olde Town Arvada, Arvada (PO Box/general) | 93% | 100% | 2 Gig | 2 Gig | 98 | 96 | Quantum Fiber |
Speed Score (0–100) blends each provider’s coverage and top speed in that specific ZIP, so it moves as availability changes street to street.
Which is better for…
The right pick comes down to what you actually do online.
Get connected
Pick your provider and check availability at your address.
- 8 Gig down · 8 Gig up Fiber
- 2 Gig down · 1 Gig up Fiber
- 1 Gig down · 1 Gig up Fiber
- 2 Gig down · 300 Mbps up Cable
- 1 Gig down · 35 Mbps up Cable
- 1 Gig down · 1 Gig up Fiber
See what’s actually available at your address
Coverage changes from one street to the next. Check your exact address in seconds.
Check my addressFrequently asked questions
Is Quantum Fiber available at my address in Arvada or only Xfinity?
Quantum Fiber reaches about 47% of Arvada, while Xfinity covers roughly 95%, so Xfinity is available at many more homes. Enter your exact address on both providers’ sites, since fiber availability changes block to block.
Which is cheaper in Arvada, Quantum Fiber or Xfinity?
Quantum Fiber starts at $30/mo versus Xfinity’s $40/mo, making Quantum Fiber the cheaper starting price. Note these are promotional starting rates, so confirm the post-promo rate, equipment fees, and any contract terms with each provider before you sign.
Which is faster and is it enough for gaming, WFH, and 4K?
Quantum Fiber is faster where available, offering symmetrical speeds up to 8,000/8,000 Mbps and a 99/100 speed score versus Xfinity’s up to 2,000/300 Mbps and 95/100. Both easily handle 4K and video calls, but check which is wired to your address before choosing.