Really? You managed to infer quite a bit didn't you. Pity it was off the mark. Aside from a tongue-in-cheek jab at the propensity that AMD has for PPS/timetable revisions, I don't see anything defensive or supercilious about my post. But if you're willing to ascribe motivation to myself, maybe I should return the favour...so, if anything you're the one getting defensive-You've just noted that you don't know what µarch Richland is...yet blast me for using an educated guess, and AMD's own literature. Actually, it should be the other way around - and probably what xorbe was attempting to convey to you. VLIW5 predates VLIW4 in DX11 capable GPUs. The VLIW5 HD 5870 (Cypress GPU) launched 23 Sept, 2009 was the first DX11 card. The VLIW4 HD 6970 (Cayman GPU) launched 15 Dec., 2010.