Play the Vista way! Ignite your imagination with the technology that makes distant worlds erupt with vibrant textures rendered in High-Definition clarity a reality. The Sapphire HD3450 is Microsoft VISTA compatible with awesome power of 40 stream processing units, accelerates next generation DirectX 10 games while remaining best in its price vs. performance class. Support for the latest Shader Model 4 boost the level of realism provided by the HD3450 to new heights and the available on board memory of 256MB or 512MB of DDR/GDDR ensures a smooth frame rate in all of today's hot titles and applications. Enhance the way you play not the amount you pay.