The guys at PCGH reviewed Civilization 5 and included some technical background on the DX11 part. Firaxis is calling the DX11 version the "native mode" - and the features that are exclusive to this render path including hardware tessellation seems to be quite interesting.
Civilization V continues to be one of the most popular grand-strategy games you can play on Steam, for about three years.
Love strategy but your processor and graphics card doesn't love you? The best strategy games for low-end PCs have you covered.
Philip Boyes:
When I was a kid, I played a lot of Civilization 2. I played a lot of strategy games in general, but having a deep love of both history and sci-fi, the epic sweep of Civ 2 from prehistory to the stars held a particular appeal. I loved taking my little people from their huts and ziggurats to the world of science and advanced space-flight.
I don't understand how to play this game in DX11? I have a 5870, which is a DX11 native card, I played Metro 2033 in DX11 for instance. But whenever I launch Civ V, it gives me a launcher window that says basically "Click here for DX9" and "Click here for DX 10/11"... but the DX 10/11 button doesn't work? I can't actually click it. Makes no sense.