Catalyst 8.8 BETA

A set of Catalyst graphics drivers is available for XP and Vista and supports every Radeon-based graphics card released since the days of the Radeon 9500, including the Radeon HD 4850, 4870 and 4870 X2.

Download links:
Catalyst 8.8 BETA WinXP 32/64-bit
Catalyst 8.8 BETA Vista 32/64-bit