XFX HD-645X-ZNH2 Radeon HD 6450

Built on the Radeon HD 6450, this card packs 1GB of GDDR6 memory. Clocks run from 625 up to 625 boost, drawing 150W — even modest power supplies handle it. 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 XFX, 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.