Actiontec GT784WN
Score: 69/100
Motorola SURFboard SB6121
Score: 62/100Rankings
The Actiontec GT784WN is an all-in-one ADSL2+ modem/router offering 24 Mbps DSL speeds, 300 Mbps Wi-Fi N300 and four Ethernet ports. Its limitations include lack of gigabit Ethernet and single-band Wi-Fi, which may not meet modern high-speed needs. It is best for budget-conscious DSL users who need basic wired and wireless connectivity.
The Arris SB6121 is a DOCSIS 3.0 cable modem with ENERGY STAR efficiency and front-panel LEDs, delivering up to 172 Mbps downstream for mid-tier broadband. Its limited channel bonding and lack of Wi-Fi make it unsuitable for modern high-speed plans. Ideal for budget-conscious households with basic internet needs.
| Attribute | | |
|---|---|---|
24 Mbps | 172 Mbpsbest | |
— | 131.072 Mbpsbest | |
4 portsbest | 1 ports | |
1 portsbest | — | |
| ↓ lower better | 0.73 kg | 0.454 kgbest |
1 yearsbest | 1 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(1) | ||
Maximum Download Speed (Mbps) | 24 Mbps | 172 Mbps |
Ports(1) | ||
Ethernet Ports (count) (ports) | 4 ports | 1 ports |
Build & Design(3) | ||
Weight (kg) | 0.73 kg | 0.4536 kg |
Dimensions (HxWxD) (mm) | 177.8x33.02x172.72 mm mm | 8.7 x 6.4 x 2.0 inches mm |
Form Factor | Desktop, wall mountable | Standard |
General(1) | ||
Provider Compatibility | CenturyLink, Verizon, AT&T, Windstream | Time Warner Cable, Charter, Cox, Cablevision |
Products in the top-left offer the best value (high score, low price).
Professional reviewers describe the GT784WN as a reliable, all-in-one solution for DSL users, emphasizing its rigorous ISP compatibility testing, simple auto-configuration, and solid MIMO-based wireless performance. They commend its built-in firewall, parental controls, and cross-platform support, while noting the hardware is dated-single-band 802.11n and 10/100 Mbps Ethernet-making it less suitable for modern high-speed networks.
Everyday users generally praise the device for its easy setup, strong Wi-Fi coverage up to 2500 sq ft, and dependable wired ports, often saying it works better than ISP-provided gear. Recurring complaints focus on its inability to support cable or VDSL services, occasional ISP support friction, and the lack of battery backup or newer Wi-Fi standards.
Professional sources and manufacturer literature praise the SB6121 for its solid 4×4 DOCSIS 3.0 channel bonding, energy-efficient design, and reliable wired performance with major cable providers. However, reviewers note that the modem's DOCSIS 3.0 platform and limited channel count are insufficient for today's high-speed plans, and they recommend upgrading to a DOCSIS 3.1 model for future-proofing.
Typical users find the SB6121 easy to install and reliable for basic internet needs, especially when paired with a separate router for Wi-Fi. Common complaints revolve around its inability to keep up with faster broadband packages, the absence of built-in wireless, and concerns over refurbished units.
“Works reliably with AT&T DSL, Windstream (better range and signal than ISP units), and CenturyLink 20 Mbps; covers large 2500 sq ft homes; Ethernet works even with Wi‑Fi off; easy replacement for ISP gear.”
