GIGABYTE GeForce RTX 5080 GAMING OC 16G review

This is Gigabyte's factory-overclocked GeForce RTX 5080. It has 10,752 CUDA cores and a 2730 MHz core clock, against a 2617 MHz reference clock. It carries 16GB of GDDR7 on a 256-bit bus, with the memory clock at 30 Gbps. Gigabyte recommends an 850W power supply.

It is a big three-fan card. That shapes who should buy it more than any other single factor.

The core clock sits above the reference figure, so this is a modest factory overclock rather than a different chip. The research here gives no benchmark numbers, so the spec sheet is the basis: a full 10,752 CUDA cores and fast GDDR7 on a 256-bit bus.

For local AI work, video memory is the figure that matters most. The card has 16GB and that cannot change. Any model that needs more than 16GB will not fit in video memory. With that ceiling, it suits models sized to fit within 16GB better than the largest ones.

Display outputs are three DisplayPort 2.1b and one HDMI 2.1b.

Gigabyte uses its WINDFORCE cooler. It has three Hawk fans, a vapor chamber, composite copper heat pipes and thermal gel. A reinforced metal backplate sits on the back.

TechPowerUp measured 64°C and 38.4 dBA under constant gaming load on the default BIOS. On the quiet BIOS it measured 31.6 dBA at 70°C. That is 6°C warmer for 6.8 dBA less noise. If you care about noise, the quiet BIOS is worth trying first.

Owners back this up. They praise the quiet fans and low temperatures.

Gigabyte does not publish a board power (TGP) figure for this card. The only power guidance is the 850W recommended PSU. That makes it hard to judge power draw against performance from the manufacturer's numbers alone.

The card measures 340 mm long, 140 mm wide and 70 mm high. Owners list size as a complaint. Measure your case clearance before buying, including height if your case has a tight side panel.

Gigabyte also sells a shorter WINDFORCE OC SFF variant at 304 mm long and 50 mm high. That is a separate product with its own spec page, so it is not the card reviewed here. If your case is tight, it is the one to look at.

Power comes through one 16-pin 12V-2x6 connector. Check how your power supply will provide it before you order.

The warranty is 4 years, and online registration is required. Register it when the card arrives, or the cover may not apply.

Owners praise the build quality, and the cooler specification supports that with its metal backplate and vapor chamber. No coil-whine reports specific to the RTX 5080 Gaming OC turned up in the research.

One detail matters if you plan to open the card. TechPowerUp reports that Gigabyte used thermal putty rather than pads on the memory and VRM, and that this makes disassembly messy.

Feedback is short and consistent. Owners like the quiet fans, the low temperatures and the build. The complaints are size and, from a single owner, price. There is no recurring pattern of faults in the research.

With 16GB of video memory, a 340 mm body and an 850W PSU recommendation, this card suits a full-size tower with a modern power supply. The quiet BIOS option and owner reports of low temperatures make it a fit for a desk-side machine where noise matters. Anyone building into a compact case should check the 340 mm length and 70 mm height first, or look at the SFF variant instead.