Comment Re:What about quality? (Score 5, Interesting) 274
See for yourself. Download the Heaven DX11 Benchmark.
Run it in DX11 API mode and then OpenGL mode and see the difference. There is a difference, but it's fairly minor. Usually DX11 or OpenGL will be the first to support a new feature, then the other supports it in the next release. The end result is that they normally produce a similar graphics quality.