Packaging
The Card
Gainward's Phoenix GS uses a mostly-black design with a silvery metal highlight element along the top edge. On the back you get a metal backplate with a large cutout.
Dimensions of the card are 33.0 x 13.0 cm, and it weighs 1595 g.
Installation requires three slots in your system. We measured the card's width to be 60 mm.
Display connectivity includes three standard DisplayPort 2.1b and one HDMI 2.1b.
Standard for all GeForce RTX 50-series Blackwell cards is a new display engine that supports three DisplayPort 2.1b outputs, each capable of UHBR20; and one HDMI 2.1a. Both interfaces support DSC (display stream compression). With DSC enabled, a single DisplayPort on this card can drive 4K 12-bit HDR at 480 Hz; or 8K 12-bit HDR at up to 165 Hz. The RTX 5080 features an updated media acceleration engine with support for 4:2:2 video formats, AV1 UHQ, and MV-HEVC. There are two independent NVENC and NVDEC units.
The card uses a single 16-pin connector, which allows a maximum power draw of 600 W.
Gainward has added an RGB illumination zone on the "Phoenix" logo.
The BIOS switch lets you select between the default "Performance" BIOS and a secondary "quiet" BIOS, which runs the fans at lower speeds.
Teardown
Gainward's thermal solution uses eight heatpipes and a vapor-chamber baseplate. It provides cooling not only for the GPU, but also for the memory chips and VRM circuitry.
The backplate protects the card against damage during installation and handling.