Results: 3D Mark Firestrike
This particular number has only been out a few weeks and can really push the very latest DX11 based cards to their limit. I used the standard Firestrike test here (Extreme setting disabled).
This test shows a bit more of a difference between the cards with the 650 Ti BOOST taking a small lead over the 7790s. The 5870 is lagging well behind. Firestrike is very shader heavy and the VLIW5 based chip is just too inefficient to keep up.