Sapphire RX 480 Nitro
Using the Nitro cooler, Sapphire's take on the RX 480 uses a dual-fan cooler with a copper heatpipe and aluminum heatsink thermal solution. We are not yet sure on the precise specifications of the cooler, its heatpipe size, or count.
The Nitro 480 uses a single 8-pin power connector that likely won't impact much, but is noteworthy for the additional sensors/GND pins. A backplate is included on the card.
Sapphire's also taking steps to reduce card RMAs resultant of fans with dead bearings (from dust accumulation or otherwise), and has included a quick release to swap fans with replacements. This idea seems to be a good one and, barring any impact on rotation/vibration or turbulence, is an idea we'd like to see in more places. XFX has done this in the past.
ASUS RX 480 Strix
There's less information on the RX 480 Strix and only one render currently out. The Strix runs longer than the Nitro card, includes a 3-fan cooler, and uses the DirectCU III ASUS thermal solution. The fans are capable of spinning down to 0RPM during low load / idle times, with thanks to a heatsink that uses 10mm heatpipes and a large aluminum fin surface area.
The card uses RGB LEDs that are toggleable through a backplate-embedded switch.
As for PowerColor, the company has announced its new Devil RX 480, but hasn't provided images as of yet. We've reached out to PCS for more information.
Editorial: Steve “Lelldorianx” Burke
Video: Andrew "ColossalCake" Coleman