I expect RV380 to offer performance close to the RADEON 9700, since the current RADEON 9600 PRO offers more speed compared to the RADEON 9500, but still cannot beat the RADEON 9500 PRO. The next member of ATI RV350 lineup will be the RV360 coming out later this year; it is very likely that its speed will exceed than that of the RADEON 9500 PRO, as a result, the RV380 part will offer us the same or nearly the same speed as offered by the RADEON 9700, but at lower price-point.
The micro architecture of the RV380 as well as its clock-speed are not yet uncovered, though, I believe it will be based on the RADEON 9800 (R350) rather than on the RADEON 9700 (R300) design. This will result in more advanced FSAA support, F-buffer technology (pixel shader programs with unlimited number of instructions), Multiple Render Target, shadow volume rendering acceleration support and so on. As always, ATI Technologies will offer a number of solutions based on the same VPU, but offering different levels of performance depending on the price.
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