Just found a Unigine 2.1 test with GTX 480/5870.

http://www.geeks3d.com/20100525/quic...-tessellation/



Results:

EVGA GTX 480 Scores

GTX 480 clocks – GPU:700MHz, memory:1848MHz and shader:1401MHz

OpenGL 4.0
Res: 1920×1080 fullscreen
Tessellation mode: Extreme
- Score: 916
- FPS = 36.4
- Min FPS = 6.1
- Max FPS = 89.4

Direct3D 11
Res: 1920×1080 fullscreen
Tessellation mode: Extreme
- Score: 970
- FPS = 38.5
- Min FPS = 17.6
- Max FPS = 95.5


GeForce GTX 470 Scores

GTX 470 clocks – GPU:607MHz, memory:1674MHz and shader:1215MHz

OpenGL 4.0
Res: 1920×1080 fullscreen
Tessellation mode: Extreme
- Score: 719
- FPS = 28.5
- Min FPS = 5.9
- Max FPS = 70.4

Direct3D 11
Res: 1920×1080 fullscreen
Tessellation mode: Extreme
- Score: 768
- FPS = 30.5
- Min FPS = 13.5
- Max FPS = 76.1


Radeon HD 5870 Scores

- HD 5870 clocks – GPU:850MHz and memory:1200MHz
- Drivers: Catalyst 10.4

OpenGL 4.0
Not supported yet.

Direct3D 11
Res: 1920×1080 fullscreen
Tessellation mode: Extreme
- Score: 531
- FPS = 21.1
- Min FPS = 6.5
- Max FPS = 74.4


It looks like Cayman will kick ass, since now is up to par with GTX 480 in DX11 but better in anything else, for a lot less TDP.