Buy it if:
Avoid it if:
| Feature | BCM3382 (DOCSIS 3.0) | BCM3392 (DOCSIS 3.1) | BCM3395 (DOCSIS 3.1 + 4x4 Wi-Fi) | |-----------------------|----------------------|----------------------|-----------------------------------| | Downstream bonding | 32x8 SC-QAM | 32x8 + 1x OFDM | 32x8 + 2x OFDM (full spec) | | CPU | Dual-core MIPS | Dual-core ARM A7 | Quad-core ARM A7 or A53 | | Ethernet ports | 4x GbE | 4x GbE | 4x GbE + 2.5G or 10G uplink | | Integrated Wi-Fi | No | No | Yes (4x4 802.11ac Wave 2) | broadcom 3392
Broadcom is known for System-on-a-Chip (SoC) integration. The BCM3392 typically integrates:
The Broadcom 3392 runs hot. The chip is manufactured on a 40nm or 28nm process (depending on the revision), which is ancient by smartphone standards. In enclosed modem/router combos (gateways), the 3392 frequently hits 85°C–95°C. Buy it if:
Common Failure Symptoms:
The Fix: If you own a Broadcom 3392 device, open it up. If you see a tiny heatsink, replace it with a 25mm x 25mm copper heatsink and a thermal pad. Many users report a 15°C–20°C drop in temperature, extending the life of the router by years. Avoid it if: | Feature | BCM3382 (DOCSIS 3
The Broadcom BCM3392 is a high-performance DOCSIS 3.1 cable modem chipsets designed for the next generation of high-speed broadband internet. As a successor to earlier DOCSIS 3.0 and initial 3.1 silicon, the BCM3392 enables cable modems and gateways to deliver multi-gigabit speeds to residential and business customers, utilizing existing hybrid fiber-coaxial (HFC) infrastructure.
It is a critical component in the transition toward "Ultra-High Definition" streaming, competitive online gaming, and smart home connectivity, supporting the industry's push toward 10G broadband networks.
One of the defining features of the BCM3392 is the Runner network accelerator. In standard routers, the main CPU struggles to handle high-speed routing, QoS (Quality of Service), and firewall inspection simultaneously. The Broadcom 3392 offloads 100% of NAT (Network Address Translation) and bridging tasks to the Runner hardware. This allowed cheap consumer routers to route Gigabit internet speeds without maxing out the CPU cores, leaving the ARM cores free for the web interface, USB sharing, and VPN tasks.
The Broadcom BCM3392 is a highly integrated system-on-a-chip (SoC) designed for the next generation of cable gateways, combining DOCSIS 3.1 physical layer (PHY) processing with a powerful application processor. This paper examines the architecture, key features, performance characteristics, and typical deployment scenarios of the BCM3392. Positioned as a solution for multi-gigabit home networking, the BCM3392 enables service providers to deliver data rates exceeding 1 Gbps downstream while supporting concurrent high-speed Wi-Fi and Ethernet backhaul.