Time for some benchies:
3DMV -
P11227
Not bad, my first run with a HD4870X2 only got
P12622.
Seems to me the color fill test demonstrates how crappy the 128bit memory bus is.
3DM06 @ 1920x1200 (my Quad at 3.0 is bottleneck city, might as well up the res. when you can)
HD4770's
15895
HD4870X2
15774
More to follow if there's any interest.
