Radeon HD 7870 XT Game Requirement Analysis
Radeon HD 7870 XT, initially set to be released as Radeon HD 7930, is a high-end GPU based on the Tahiti Core and not on the Pitcairn like in the 7800 Series.
It's based on the Tahiti LE Core with 1536 Shader Processing Units, 96 TMUs and 32 ROPs. It comes paired with fast GDDR5 but on a 256-bit memory interface. The central unit runs at 925MHz (975MHz in Turbo Mode) and the memory clock operates at 1500MHz. It consumes up to 185 Watt.
Its performance is quite superior to Radeon HD 7870 and only around 3% worse than Radeon HD 7950.