The main hardware component Tyranny will require is a good processor, even for minimum system requirements. An Intel Core 2 Quad Q9505 2.83GHz CPU or AMD Athlon X4 840 3.4GHz will make Tyranny playable but you will need at least an i5-2400 or AMD Phenom II X6 1100T with 8GB RAM to reach recommended requirements. The minimum system memory needed will be 4GB and an AMD HD 5770 with 1GB VRAM will deliver around 30FPS at 900p and low settings. There wont be a huge amount of difference graphically between Tyranny's low and high graphics settings, but if you are looking for top graphics options then you will need a Nvidia GTX 570 or HD 7790 for 1080p and 60 frames per second.
Tyranny: Bastard's Wound is the first official expansion pack for Obsidian's evil RPG. Bastard Wound adds an all-new story set in a new section of Kyros' world, companion quests, new voice-acting and more.