Gigabyte GV-R677SL-1GD Radeon HD 6770

Built on the Radeon HD 6770, this card packs 1GB of GDDR6 memory. Clocks run from 850 up to 850 boost, drawing 150W — even modest power supplies handle it. At 274mm long it fits most mid-tower cases; display outputs: HDMI 2.1, DisplayPort 2.1. 1GB of VRAM is tight for modern AAA games — best suited to esports.

Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Support and warranty service run through Gigabyte, with terms that vary by region. The full specification sheet below breaks out every listed detail, and the compatibility checker flags conflicts with parts already in your build.