That AMD has 7-nm graphics cards on the market is no big secret since the Radeon VII was the pioneer in the matter of 7 nm with AMD. With the Navi graphics cards, AMD is also now bringing the small manufacturing process to the upper mid-range of desktop graphics cards. But it's not only the structural width that's received a makeover because the GPU itself is based on a new architecture called RDNA. You can find out how well the AMD Radeon RX 5700 performed in our review.
https://www.notebookcheck.net/AMD-Radeon-RX-5700-review-With-7-nm-to-success.428200.0.html