Yes, the 4K Ultra HD release is substantially better than the 2008 Coppola Restoration Blu-ray set in every measurable metric.
The Godfather in 4K is not a gimmick. It is an archeological restoration. It takes a film that felt like an old photograph and turns it back into a living, breathing window into 1940s New York. Leave the gun. Take the 4K disc.
For die-hard fans, the bonus features are often the deciding factor. This set includes the films on 4K discs, but the majority of the special features are included on standard Blu-ray discs included in the set.
Gordon Willis was nicknamed the "Prince of Darkness" for his heavy use of shadows. The addition of Dolby Vision and HDR10 completely revolutionizes these dark scenes.
The set is exceptionally comprehensive, particularly regarding the third film. The Godfather Trilogy 4K UHD and Blu-ray Review: Appalling
The Godfather Trilogy on 4K Blu-ray is an essential, reference-quality addition to any home cinema collection. It represents physical media at its absolute finest.
To understand why the 4K presentation looks the way it does, one must look at the Herculean effort behind the scenes. Under the strict supervision of Francis Ford Coppola and Paramount Pictures, American Zoetrope spent thousands of hours meticulously restoring all three films.
Deducting half a star only because the lack of an Atmos track feels like a missed opportunity for the horse head scene.