AMD's brand new Navi 7nm GPUs are significantly smaller than previous Vega 56 and 64 parts, packing fewer transistors on a much smaller package, so we expect them to be efficient. The Radeon RX 5700 and XT GPUs have also been purposely built for gaming and are set to compete directly against GeForce RTX Super cards.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips