tl;dr: Running classic DOS games like Quake, Duke Nukem 3D, and Blood in their original software renderers at high VESA resolutions (e.g., 800×600) on modern hardware yields a sharp, gritty look that the author prefers over the blurry bilinear filtering of period 3D-accelerated versions. Software rendering was CPU-bound and impractical at those resolutions in the 90s, but a fast modern PC running native DOS can now push it at a locked 60fps—though the heaviest Build engine games still tax even multi-GHz quad-cores.