3DMark and Unigine Heaven
That we have taken a look at our gaming tests using our Frame Rating metrics and testing methods, we are including a set of tests from more standard benchmarks like Unigine Heaven and the newer 3DMark benchmark.
I consider these tests to be somewhat of a "best case" for all the cards in our comparison. We aren't using our frame capture system, we aren't measuring frame latency, nothing like that; I think this should give you an idea of graphics performance if each vendor had the best result for each game.
Synthetic tests scale well on both AMD and NVIDIA systems but the R9 290X cards maintain a performance edge over the GTX 780s.
But in the area of tessellation, NVIDIA is still dominant, beating out the R9 290X in single and dual-GPU testing.