ATI Radeon HD 4870 scores P7534 in Vantage
 

The young company posted an interesting performance comparison chart. It claims the HD4870 outperforms the HD4850 and HD3870 X2 by as much as 30 percent in 3Dmark Vantage Extreme tests, scoring X3321 vs. X2573 and X2553. In the Performance test, the situation is a bit different, the HD4870 beats the HD4850 by around 20 percent, scoring P7534 vs. P6235.

http://www.fudzilla.com/index.php?op...90&Ite mid=34

X3321 x 4 = 13284 - CF performance loss = X12515

The scores we posted earlier of 2 X2's might be +/- correct :)