Netgear CM1000 Black
Score: 74/100
Arris SURFboard SB8200
Score: 75/100Rankings
The ARRIS SURFboard SB8200 is a DOCSIS 3.1 cable modem delivering very high theoretical speeds and dual Gigabit Ethernet ports. It lacks built-in Wi-Fi and can run hot, with some users experiencing lag spikes and port issues. Best suited for households that already have a separate router and need a high-performance wired modem.
The NETGEAR CM1000 is a DOCSIS 3.1 modem delivering up to 1 Gbps download with IPv6 and QoS support. Its single Ethernet port and top-heavy chassis are trade-offs. Ideal for gigabit cable users who already have a separate router.
| Attribute | | |
|---|---|---|
1,000 Mbps | 10,000 Mbpsbest | |
— | 2,000 Mbpsbest | |
1 ports | 2 portsbest | |
| ↓ lower better | 30 Wbest | — |
| ↓ lower better | 0.381 kgbest | 0.608 kg |
1 years | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(1) | ||
Maximum Download Speed (Mbps) | 1000 Mbps | 10000 Mbps |
Network(1) | ||
DOCSIS Standard | 3.1 | DOCSIS 3.1 |
Ports(2) | ||
Ethernet Ports (count) (ports) | 1 ports | 2 ports |
WAN Port Type | Coaxial | RJ-45 |
Build & Design(3) | ||
Weight (kg) | 0.381 kg | 0.6078 kg |
Dimensions (HxWxD) (mm) | 223 x 150 x 137 mm mm | 133.35x130.30x44.45 mm mm |
Form Factor | Upright | Modem |
General(2) | ||
Provider Compatibility | Xfinity, Spectrum, Cox | Xfinity, Cox, Spectrum |
Warranty (years) (years) | 1 years | 2 years |
Products in the top-left offer the best value (high score, low price).
Professional reviewers consider the CM1000 a reliable and straightforward DOCSIS 3.1 solution that delivers fast gigabit speeds, broad ISP support, and useful features like IPv6 and QoS. However, they caution about its unstable base and the limitation of a single Gigabit Ethernet port despite the high theoretical bandwidth.
Consumers generally appreciate the modem's consistent high-speed performance, easy setup, and cost savings from avoiding rental fees, but they frequently mention the top-heavy design that can tip over and the absence of built-in Wi-Fi as drawbacks.
Reviewers highlight the SB8200's ability to deliver true gigabit speeds on DOCSIS 3.1 networks, praising its dual Gigabit ports, solid build, and proven compatibility with Cox and Xfinity. They note the lack of built-in Wi-Fi as a trade-off and caution that real-world speeds depend on ISP provisioning, while occasional lag spikes are mentioned as a minor drawback.
Users consistently praise the modem's speed, ease of setup, compact design, and compatibility with major ISPs, but many complain about the unit running hot, occasional lag spikes, and Ethernet port failures that cause connectivity drops.
