However, when Epic upgrades the maximum framebuffer resolution to 2160p the rendering resolution with 65 % dynamic scaling would go up to 2496 × 1404 — thus delivering sharper graphics definition. (wccftech.com)
The 10mb of framebuffer that it is hardwired to the GPU gives it ample bandwidth to provide enough power (when used in 2 tiles) to render a 1280x720 32bit (integer or floating) render, with up to 4xMSAA. (n4g.com)
However, when Epic upgrades the maximum framebuffer resolution to 2160p the rendering resolution with 65 % dynamic scaling would go up to 2496 × 1404 — thus delivering sharper graphics definition. (wccftech.com)