The original Stellaris requirements were pretty optimistic. They have recently been updated. Now to run Stellaris smoothly you will require a Phenom II X4 850 or Intel i3 2100 processor. The GPU required to reach Stellaris high graphics settings and reliable FPS at 1080p resolution would be either a AMD HD 6850 or a Nvidia GTX 560 Ti. The Stellaris system memory requirement is 4GB.
Stellaris: Utopia adds Megastructures (Wonders equivalents), habitat space stations, and speciesism. You’re now given finer control over the individual rights and privileges of the many species of alien races under your domain.In addition to this Ascension Perks are being added to Stellaris: Utopia. These are granted as your species advances, letting you further evolve them and customise their advancement. You can pick between psionic, biological and synthetic paths, each with unique abilities.